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A TOOHIG-FENNER AFFILIATE

BROaDCaSTencineeRind

The journal of broadcast technology

July 1982 Volume 24 No. 7

6 FCC update

8 News

10 EditorialAM stereo: A shot in the arm

CAPTIONING FOR TV

18 Case study: Captioning at WGBHBy George Harrar, editorial consultant, WGBH Teletext Project, Boston, MA

RADIO

51 A look at KABC/ABC TALKRADIOBy Art Sterman, manager, radio engineering operations, KABCIKLOS,Los Angeles, CA

60 ABC launches SuperadioBy Harmon M. Shragge,

62 WMCA's smooth running talk showBy L. Scott Hochberg, president, Logitek Electronic Systems, Houston, TX

OTHER FEATURES

14 PRC-'82: Progress in radioBy Brad Dick, chief engineer, KANU, Lawrence, KS

32 Getting the picture: Video monitor surveyBy Carl Bentz, technical editor

69 Feedback

70 New products

72 Business

75 People

77 Index of advertisers

78 Classified ads

°Copyright 1982, by Intertec Publishing Corporation. All rights reserved. Photocopy rights: Permission tophotocopy for internal or personal use is granted by Intertec Publishing Corp. for libraries and others registeredwith Copyright Clearance Center (CCC), provided the base fee of $2.00 per copy of article is paid directly to CCC,21 Congress St., Salem, MA 01970. Special requests should be addressed to Cameron Bishop, publisher.

ISSN 0007-1994.

BROADCAST ENGINEERING (USPS 338-130) is published monthly by Intertec Publishing Corporation, 9221Ouivira Road, P.O. Box 12901, Overland Park, KS 66212-9981. Postmaster, return form 3579 to the above address.

THE COVER shows performer SteveAllen at KABC in Los Angeles. "A Lookat KABC/ABC TALKRADIO," on page 51,describes this station's design and pro-gressive programming for radio talkshows. Steve Allen and Jane Fonda wereamong the celebrities appearing asguests at the station soon after its re-cent remodeling program.

NEXT MONTH: Phono cartridge technology High definition TV IBC (International Broadcasting

Conference)

2 Broadcast Engineering July 1982

"I want aworld -class cameraI can take a mile from the van,

and still get 57dB S/N and600 -line resolution':

,t1,i 14, Ir 01.0.1.11, ONO LAI 31

A A A ei

I e

HITACHI HEARD YOUThen you're looking for broadcast -quality. Then you'relooking for lightweight equipment you can carry unencum-bered by anything but a lightweight triax cable.

Well, Hitachi heard you. Because now our HitachiSK -91 and SK -81 can both be connected to our triax DU -91Digital Command System by up to 6,000 feet of cable.

The SK -91 is an example of the lengths Hitachi willgo to give you the camera your craft and courage demand.Though just 9.7 pounds, including its 1.5 -inch viewfinder,this $33,000 camera has been hailed as a bargain by per-fectionists. And it's I.B.A. and C.B.C. accepted.

Its shock -mounted optical system-with Saticons®,'Plumicons® or Diode Guns®-gives you up to 57 dB S/Nand 600 -line resolution. All in an incredibly tough

magnesium alloy package.It has an auto -iris closure. A +9/18 dB high -grain

switch. Horizontal and vertical blanking widths adjustableover a wide range. An auto black balance control as wellas an auto white balance control.

The SK -81 gives you just a shade less performancefor $22,000. The DU -91 at $18,900 lets you get greatpictures with either the SK -91 or SK -81 whether you'reshooting at the low -light levels of a coal mine or going tothe top of the world. Who from? Who else? Hitachi DenshiAmerica, Ltd., 175 Crossways Park West, Woodbury, NY11797. (516) 921-7200. Offices also in Chicago, LosAngeles, Atlanta, Cincinnati, Dallas, Denver, Seattle andWashington, D.C.

Circle (79) on Reply Card

July 1982 Broadcast Engineering 3

Sprintsame-daydeliverymakes

"tomorrow"a thing

of the past.

Eastem's Sprint same -day service carries more thansmall packages. It also carries a remarkable guarantee:

You get same -day service. Or you get your money back.(Provided, of course, the specific flight is scheduled to arrivebefore midnight.)

We have Sprint service to over 90 cities nationwide,with over 1,200 flights daily. For details, rates and flightinformation, call Eastern Airlines.

Also ask about Sprint service to internationaldestinations. If you're interested in pickup and deliveryservice in the U.S., call 800-336-0336, toll -free.

©1982 Eastern Air Lines, Inc.

EASTERNCircle (4) on Reply Card

BRoaDcaszEditorial and advertising correspondenceshould be addressed to: P.O. Box 12901,Overland Park, KS 66212-9981 (a suburb of Kan-sas City, MO); (913) 888-4664. Circulation cor-respondence should be sent to the above ad-dress, under P.O. Box 12902.

EDITORIALBill Rhodes, Editorial DirectorCarl Bentz, Technical EditorNils Conrad Persson, Electronics EditorDavid Hodes, Video EditorRhonda L. Wickham, Managing EditorKaren Arnhart Booth, Associate EditorMary Thornbrugh, Editorial AssistantTina Thorpe, Editorial AssistantPat.Blanton, Directory Editor

ARTKevin Callahan, Art DirectorKim Nettie, Graphic Designer

TECHNICAL CONSULTANTSJohn H. Battison, Antennas/RadiationBlair Benson, TV TechnologyDennis Ciapura, TechnologyHoward T. Head, FCC RulesDonald L Markley, FacilitiesArt Schneider, A.C.E., Post -production

CORRESPONDING ASSOCIATIONSAmerican Society of TV CameramenAssociation for Broadcast

Engineering StandardsNational Association of BroadcastersNational Radio Broadcasters Assn.

CIRCULATIONJohn C. Arnst, DirectorEvelyn Rogers, ManagerDee Manies, Reader Correspondent

ADMINISTRATIONR. J. Hancock, PresidentCameron Bishop, Publisher

ADVERTISINGMark Raduziner, Marketing CoordinatorMary Birnbaum, Production Manager

Regional advertising sales offices listed nearthe Advertisers' Index.

Member,American Business Press

Member,Business PublicationsAudit of Circulation

ABP

VBPABROADCAST ENGINEERING CUSPS 338-130) ispublished monthly by Intertec Publishing Cor-poration, 9221 Quivira Road, P.O. Box 12901,Overland Park, KS 66212-9981. Postmaster,return form 3579 to the above address.

BROADCAST ENGINEERING is edited for cor-porate management, engineers/technicians andother station management personnel at com-mercial and educational radio and TV stations,teleproduction studios, recording studios,CATV and CCTV facilities and governmentagencies. Qualified persons also include con-sulting engineers and dealer/distributors ofbroadcast equipment.

SUBSCRIPTIONS: BROADCAST ENGINEERINGis mailed free to qualified persons in occupa-tions described above. Non -qualified personsmay subscribe at the following rates: UnitedStates, one year, $25; all other countries, oneyear, $30. Back issue rates, $5, except for theSeptember Buyers' Guide issue, which is $15.Rates include postage. Adjustments necessi-tated by subscription termination at single copyrate. Allow 6-8 weeks for new subscriptions orfor change of address. Controlled circulationpostage paid at Shawnee Mission, KS.

©1982. All rights reserved.

Intertec Publishing Corp.


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IFCCupdate

1982

FM allocations standards modifiedIn a significant deregulatory action

on May 20, the commission elimi-nated most of the policies which pre-viously restricted the assignment ofnew FM frequencies to particularcommunities. A summary of thechanges includes the following:

FM priorities. In the future, firstaural (reception) service will be givenhighest priority with co -equal statusgiven second aural service and firstlocal (transmission) service.

Population criteria. The commis-sion deleted criteria limiting the num-ber of channels available to a com-munity of a given size.

Preclusion. This refers to the factthat assigning a given channel precluded assigning that channel andadjacent channels in the same generalarea. If no interest is shown in thecommunity where the preclusionwould occur, the proposal will be con-sidered without regard to its pre-clusive effect.

Class of channel to assign. Thecommission has deleted the policycalling for making only Class A FMassignments to smaller communitiesand Class B or C to larger ones.

Intermixture. The commission'spolicy against assigning two differentclasses of FM channels to a particularcommunity has been dropped.

Berwick issue. This issue, whichconcerns whether the party involvedreally intends to serve the designatedcommunity or a larger one nearby,will no longer be used in FM rulemak-ing.

Assigning a channel to avoid ahearing. The policy of not assigning achannel to avoid a comparative hear-ing has been dropped.

Demographic data. In caseswhere the status of a community isnot in issue, the commission haseliminated the requirement for demo-graphic data.

VHF "drop -in" proceedingThe commission has denied peti-

tions to reconsider its 1980 decisionassigning new VHF TV channels toJohnstown, PA, Knoxville, TN,Charleston, WV, and Salt Lake City,

Harry C. Martin, partnerMidlen, Reddy, Begley & Martin

UT. Opponents charged that the as-signments would cause interferenceto short -spaced stations and prejudicethe commission's pending rulemakingon whether new drop -ins should bepermitted if "equivalent protection"can be afforded to short -spaced sta-tions. (In this context, "equivalent pro-tection" means the same degree of in-terference protection the table of TVchannel assignments provides whenstations operating with maximumfacilities are spaced as close togetheras the rules permit.)

Many observers said they feel thedecision to deny reconsideration inthe Johnstown/Knoxville/Charleston/Salt Lake City proceeding is a signalthat the FCC will liberalize its TVallocations rules generally to allowfor many more VHF drop -ins where"equivalent protection" can be af-forded.

FM -to -Channel 6 interferenceThe commission has issued a sec-

ond further rulemaking notice pro-posing specific rules to define andgovern the interference caused bysome non-commercial, educationalFM stations to the reception of TV sta-tions operating on Channel 6 in thesame vicinity.

Specifically, in this action the com-mission asked for comments on thefollowing proposals:

limiting the amount of interfer-ence allowed to that which wouldmake reception of Channel 6 impossi-ble over a 0.3 -square -mile area aroundthe FM station's transmitter site; and

retaining the current "demand"system for assigning non-commercial,educational FM stations, and notadopting an assignment table for suchstations at this time.

The effect of the proposed stan-dards, developed through the use of acomputer model, would be to placerestrictions on the power and antennaheight used by educational FM sta-tions within the Grade B contour ofTV Channel 6 stations. These restric-tions would become less burdensomeas the frequency of the FM stationmoves from 88.1 to 91.9MHz-awayfrom the Channel 6 spectrum., :/.74)))1


6 Broadcast Engineering July1982

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news

BE to sponsorChina technical tour

A technical tour of China in July1983 will be sponsored by BroadcastEngineering. The 14 -day trip willbegin in Peking and cover Shanghaiand Canton before ending in HongKong.

The technical tour will include ma-jor radio and TV facilities as well as anumber of broadcast equipment fac-tories. Meetings with key officials and

an exchange of technical informationand ideas will be conducted in eachcity.

Also, time will be allotted for stopsat such locations as the Great Walland the Imperial Palace.

The tour was arranged after discus-sions held during a China trip taken inFebruary by Cameron Bishop, BEpublisher, and Bill Rhodes, editorialdirector. The Chinese expressedspecial interest in meeting with

GEOFF MENDENHALL

CUR: KRING

Thank!Sincere appreciation and thanks is what we want to convey.

Curt Kring, Joe Engle, Geoff Mendenhall, John Burtleand I wish to extend our thanks to the many broadcastindustry friends who stopped by to see our NABConvention equipment display.

Our rapid growth suggests that our products aremeeting broadcasters needs and expectations for optimumperformance and reliability.

All of us at Broadcast Electronics look forward toserving you in the future and appreciate the increasingconfidence in our company and in our expanding productline.

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representatives of the broadcast in-dustry worldwide and are anxious toshow some of their new facilities andequipment.

The tour will be limited to 20 peoplewho are involved in the broadcast in-dustry. A special package fare hasbeen developed along with a reducedrate fare for spouses.

For more information, contactGeorge Roman, Roman Consulting,P.O. Box 1607, Lafayette, CA 94549;1-415-284-9180 or Broadcast Engi-neering.

First broadcastingprogram remembered

On Feb. 14, 1922, 2MT Writtle, awireless station set up and manned bymembers of the development sectionof the Marconi Company at Chelms-ford, England, first went on the air tobegin a regular service of informationand entertainment that has becomethe most far-reaching development ofthe 20th Century-broadcasting.

Following the series of highly suc-cessful experimental broadcasts in1919 and 1920, the post office revokedthe Marconi transmitting license onthe grounds of interference withlegitimate services, despite the loudprotests of the growing numbers ofamateur enthusiasts who listenedavidly for the transmissions. Therefollowed a period of silence while theamateurs, members of wireless clubsthat were to form the Radio Society ofGreat Britain shortly afterwards,gathered their strength. Then, inMarch 1921 at a conference in Lon-don they formally asked the post of-fice to reinstate the license. A furtherwait followed until the license wasrestored in January 1922.

Elsewhere, particularly in theUnited States, broadcasting wasbecoming established and an infantindustry was developing in responseto wide interest. But the post officelicense to Marconi imposed severerestrictions-power limited to 250Wand transmission time to no morethan 30 minutes per week.

The Marconi Company instructedCaptain P.P. Eckersley of the develop-ment section to establish a broad-casting station in a hut at Writtle, nearChelmsford. He did, and planned theprograms that it would transmit. So,on Feb. 14, 1922, between 8 and 8:30p.m. the first of the regular Tuesdayevening programs began. Eckersley,later to become the first chief engineerof the BBC, was the star performer.Broadcasting was born.

The original hut still stands. It is onthe grounds of the Kings Road JuniorSchool at Writtle, Chelmsford, and isused by the boys as a changing room.



I ::-))))1

TEK69°SRCOLOR PICTURE MONITOR

There are some productsby which all others are judged.

Tektronix introduces a newstandard of reference for judgingcolor picture quality. And colorpicture monitors. Look at the690SR for an accurate, hcnest pic-ture, every time. High resolution,precise convergence and stablecolor make it your best basis for

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leditorialAM stereo:

A shot in the armOne argument in favor of AM stereo

is that it will revitalize AM broad-casting. Much has been said about theseveral schemes from which themarketplace must choose to achievethe AM stereo broadcasts. The factthat the various techniques of AMstereo were developed is evidence ofthe continuing ingenuity of designengineers.

Yet, there is an inconsistency in thisargument in favor of the new radiotechnology. If we see AM stereobroadcast come about, what will wehear? It is assumed that receivermanufacturers will improve theirdesigns. But will they?

They could easily have incorporatedPLL demodulation by now, aiding inselectivity and making possible reduc-tions of transmitter carrier power,transmission costs and interference.They have not done so. They couldhave produced an automatically

variable bandwidth system, depend-ent on the strength of the receivedsignal. Such a scheme would improvequality of reception; but that has notbeen done. They could have madeother changes to improve fidelity ofthe audio, but instead swamping com-ponents continue to narrow the audioresponse. So without receiver im-provements, there is a point beyondwhich transmitted signal im-provements fail to show better recep-tion.

And for what will these improve-ments be made? Talk shows do notneed any increased audio bandwidth.Communications equipment isgenerally limited to a bandpass of300Hz to 3kHz, because a greaterresponse does not significantly im-prove intelligibility. Little can be saidof increasing fidelity on music for-mats. The majority of the music comesfrom phono discs whose groove

modulations already display an over-abundance of compression andlimiting. By the time a station hastaken part in the modulation war, theresult is an intelligence impressed onthe carrier that lacks dynamic rangeand generally irritates as manylisteners as it pleases. It would seemthat we are awaiting AM stereo so wemay witness (experience) cacophonyin stereo! Somehow that possibilityrings of multiplicity in trivia.

We suggest that if AM needs a shotin the arm, then perhaps other pointsalso need to be considered. Let thereceiver people know that we are fedup with mediocre designs of equip-ment. Let them also know that in-tegrated circuits could easily providesuch improvements as PLL demodula-tion and auto -variable IF bandwidthsat little added expense to the receiverbuyer. Let the recording studios knowthat musical quality is not dependentupon a consistent loudness of thereproduced recorded sound, and thatdynamics in music can be pleasing.And, finally, if the electronics wizardswho design our equipment can showimagination and ingenuity, why can'tthe program producers also displaycreativity? Some talk and some musicis fine, but let's have something elsethat makes spending the time andmoney worthwhile. I :I -4M

If We Don't Already HaveThe Broadcast TV Filter You Need . . .

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We'll Build It, Fast.Catalog BTV/82 is 16 pages of filters, traps, diplexers and

channel combiners that are currently in use in UHF, MDS, L -bandand microwave instructional TV applications. Maximum deliverytime for most standard products is 10 days.

But if you need a one -of -a -kind special and you can't afford towait, we've still got you covered-we'll design and build exactlywhat you need for your installation, and we'll work around the clockto deliver it when you need it.

Use our toll free number and talk to the RF or microwaveengineer who will design your special filter. He'll give you aprompt, on-line analysis of your specifications, and he'll quoteprice and delivery time. Before you hang up, you'll know what youneed, when you'll have it and how much it will cost-all with justone phone call!

Once you've placed an order, our unique QRC (quick reactioncapability) begins to work for you: QRC combines computer -aideddesign with our dedicated model shop and test labs to ensure thatyour filter will be what you need when you need it.

When you need a special filter designed exactly to yourspecifications, and you need it now, call MFC!

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"Finally there's a 3/4 -inchrecorder that doesn't just inchalong," says Fred Rheinstein,president of The Post Group.

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"The 800 is amazingly fast.To be able to go backwardand forward at 40 times playspeed means you can searchfor your edit points-and findthem-more than twice asfast as ever before:' continuesRheinstein. "And this machinegoes from its highest speed toa still frame. Instantly. Withoutclewing or breaking up.

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"It's the perfect combinationof U-matic economy and broad-cast quality. It's a true master-ing process; with the BVU-800,there's no need to transfer toone -inch and lose a generationin order to edit your tape."


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Fred Rheinstein, THE POST GROUPOther breakthroughs incor-

porated in the BVU-800 includeits ability to make machine -to-

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"We've always bought a lotof Sony, because we can dependon the company for reliabilityand innovation," says Rheinstein."Now, with the BVU-800, Sonymakes its competitors look likethey're operating in reverser

Sony makes a full line of 1 -

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For more information, writeSony Broadcast, 9 West 57th St.,New York, N.Y. 10019. Or callus in New York/New Jersey at(201) 368-5085; in Chicago at(312) 860-7800; in Los Angelesat (213) 537-4300; or in Atlantaat (404) 451-7671.

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PRC-'82:Progress in radio

By Brad Dick, chief engineer, KANU, Lawrence, KS

April 18-22, 1982

Hyatt RegencyWashington, DC

900 attendees

The annual Public Radio Con-ference (NPR) gives public radio sta-tions an opportunity to meet anddiscuss the areas of concern in publicradio. The sessions also allow profes-sionals in the different facets of sta-tion operations to discuss techniquesthat have been successful at other sta-tions. Those attending this year's con-ference were offered high quality pro-grams for which the conference hasbecome known.

The engineering side of the con -

The engineering training panel (left to right): John Battison, WOSU; Roger Karwoski,KBIA; Skip Pizzi, NPR/Washington; Dick Cassidy, NPR/Washington; and Brad Dick,KANU.

ference has always been taken serious-ly by the leadership of the conference,and those sessions aimed at engineerswere timely and informative. Thisyear's list of topics included suchseminars as: Laser CommunicationsSystems, FM/SCA Transmission Prob-lems, RPU/STL Systems, Elderly Tape

Recorder Maintenance and FMCoverage Prediction. Panels featuredrepresentatives of the FCC, SBE andNPR. Although not strictly directed atmaintenance engineers, several ses-sions were held to provide instructionon stereophonic recording and pro-duction techniques.

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10 microphone and 5 stereo line inputs. Plus remotecontrol, an accurate spot timer, 10 programmable"search and find" memories, variable speed anddozens other features designed to make your jobeasier and your product better. MCI even offers acomprehensive user training program in the creativeuse and the maintenance of this system.

Contact your nearest MCI dealer today aboutthe quality design (and cu -rent price advantages) ofMCI's new Total Production Package. Youradvertisers will love you for it.


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Laser linkWayne Hetrich, senior NPR

engineer, spoke to engineers about alaser audio link he has been workingon. The system, which costs about$10,000, provides two audio -over -video subcarriers. It has several ad-vantages over RF links, according toHetrich. They include: no FCC licenserequirement, no telephone companyproblems, high quality, simple andrapid installation and a secure(private) line. He said the beamwidthof the system at 2000 feet would beabout two feet. On a clear day, he ob-tained a transmission path of 2000feet. At night the distance increased to3500 feet. Fog and snow can be a prob-lem, reducing the path length to as lit-tle as 500 feet.

FM patternsOne particularly interesting session

was centered on the prediction of FM

coverage patterns. Ed Williams, fromCorporation for Public Broadcasting,outlined a computer program that heuses to predict the coverage for TVstations. This computer data -basedprogram will count the number ofpeople (based on current census data)within two contours of a station. Theprogram also takes into account theterrain surrounding the transmitter.Figure 1 shows the result of plottingthe predicted coverage of an FM sta-tion while taking into account the sur-rounding terrain. The computer pro-gram required 11 minutes of CPUtime just to make the calculationsnecessary to plot the map. The com-puter then drives a plotter to actuallyplot the coverage on a standard map.This type of information would beuseful for any station located in moun-tainous terrain and concerned aboutknowing exactly where its signal is be-ing received. The cost for this service,

Continued on page 66

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A still from Asbury Grove: A Farad} Album, a series of reports produced by the Captioned ABC News staff and broadcast as partof that program in the summer ID' 1981.

Case study:Captioningat WGB7-1By George Harrar, editorial consultarit, WGBH Teletext Project, Boston, MA

All WGBH photos, except for the last one shown, were taken by Stu Rosner for The Caption Center.Photos are copyright 1982 by the WGBH Education Foundation and used with permission.

The marriage of a Mark II Vidifontto a General Automation computer in1973 produced the engineering linkthat made possible the first nationallytelevised captioned program, TheFrench Chef, with Julia Child.

The joining of a court stenographer,minicomputer and teletext shouldresult this fall in another land-mark-the real time closed captioningof an unscripted news event.

WGBH-TV, Boston, the PBS af-

Sondra Thorn, teletext p-oject super-viser, experiments with styles for newspages for the WGBH telete.t magazine.


filiate, is party to both TV break-throughs. The Caption Center atWGBH is best known for its late nightrebroadcast of ABC's World NewsTonight. For nine years, the CaptionCenter has transcribed this newscast'saudio and edited it into open captionsat a comfortable reading speed. Com-mercials are replaced with specialfeatures geared to the target audience,an estimated 14 million hearing -impaired people nationwide.

TeletextThe Caption Center has captioned

thousands of hours in the open -caption format. Now comes teletext,and WGBH is moving fast to capturesome of the new opportunities of thissophisticated system of informationdelivery.

Carole Osterer, director of the Cap-tion Center, said "WGBH is involvedin two experiments with teletext: tele-text captioning through our LosAngeles branch in conjunction withCBS, and a teletext magazine,scheduled to go on air July 15, whichwe are producing ourselves in Boston.The teletext magazine will be the firstin the Northeast."

Tom Keller, senior vice presidentfor science and technology at the Na-tional Association of Broadcasters,had much to do with preparing thestation for teletext during his twodecades at WGBH. As WGBH's direc-tor of engineering, he brought inequipment and ideas that steeredWGBH toward new technologies.

In casting its lot with teletext, theCaption Center is acting on the beliefthat the medium has far greater flex-ibility and long-term potential thanthe current Line 21 closed captioning.The Line 21 system, developed duringthe 1970s with public funds and someconsulting input from WGBH, becameoperational in 1980 and is now almostexclusively under control of the Na-tional Captioning Institute (NCI). TheSears TeleCaption adapter, whichcosts $290, decodes the closed cap-tions prepared by NCI.

"NCI claimed sole right to Line 21technology," Dan Glisson, manager ofthe Caption Center/Los Angeles, said."They treated it as an industrial secretand refused to share technology, ex-pertise or experience. So we had to re-invent the wheel."

WGBH launched its own Line 21captioning last year to provide addi-tional programming for the thousandsof hearing -impaired people whobought the Sears decoder. The Cap-tion Center hopes soon to caption onLine 21 all WGBH programs-such asNOVA and Masterpiece Theatre-forair on PBS.

Line 21 captioning shows currentusefulness, but Glisson is not op-timistic about this system's future."I'm willing to say Line 21 captioningis obsolete," he said. "If NCI is going torestrict it, there's the unintentional ef-fect of furthering teletext. I'd advisepeople to hold off buying a Line 21decoder right now. In a year or so,teletext decoders will be on themarket."

Glisson cited several advantages ofteletext: First and foremost, teletext prom-

ises to become the primary meansfor delivering broadcast digital datainto the home. Captioning and sub-titling, as an integral part of a net-work teletext service, therefore,would be available to the widestpossible audience.

Teletext captioning, with its widerrange of size, color and positioningoptions, provides greater designflexibility.

Teletext captions are transmitted ata much higher data rate, permittingseveral channels of captions andsubtitles to coexist with a rapid ac-cess teletext magazine; Line 21'srudimentary text service must behalted every few seconds whenevercaptions are transmitted. Teletext'shigher data rate will also be impor-tant in the emerging field of realtime captioning, where this timedifference is significant.

Line 21 captioning, does, how -

Daniel B. Glisson, Jr., manager, WGBHCaption Center/Los Angeles.

ever, boast some technical advan-tages. Its low date rate makes it morereliable in network distribution, cablesystems and fringe broadcast recep-tion areas. Also, its position in the ver-tical blanking interval (the 21st line)allows it to be recorded and playedback on virtually any videotapemachine, including most home VCRs.

Teletext's high data rate presents atechnical challenge to much of thevideo handling equipment now in use.Network and cable systems, as well asbroadcasting equipment, may need tobe upgraded or augmented. Con-sumers may need to providethemselves with superior TV recep-tion And teletext's earlier position inthe vertical blanking interval (current-ly Lines 15 to 18) renders it impossibleto record in encoded form on today'shome VCRs.

WGBH, through the Caption Center/Los Angeles, is testing teletext cap-tioning jointly with CBS on five hoursof shows per week. Current teletextcaptioned shows include Dallas; Mag-num, PI; The Tuesday Night Movie;

hiLSLANII i i. i uGS 1)1SPUTE

SR TT I SK oiEnwsE OrtosTRY ANNOUNCED,AT THAT ARUM JETS ATTACKED TWO,ENTINE SHIPS IN HARROWS BETWEEN4 FALKLAND AND WEST FALKLAND MOOS.

.4 ARGENTINE SHIPS

1111

Closeup of a partially completed teletext A TV camera captures the image of anews page. bus...

...which is -hen stored in the teletextcompJter, cjlorized, refined and titled.


SomecaptioningfactsBy the National Captioning Institute (NCI), Falls Church, VA

Consumer decoders. Sears, Roebuck and Company sells a set -top adapter todecode and generate captions for display on a standard TV receiver. TheTelecaption Adapter has a UHF and VHF tuner, IF and video demodulatorboard, captioning decoder board, an RF modulator with output on Channel 3or 4, and a power supply packaged in a cabinet for use on or near a TVreceiver.

Closed captioning is a processby which the audio portion of aTV program is translated intocaptions (subtitles), which ap-pear on the screen. Hearing -impaired viewers, then, canread what they cannot hear.Closed captions can only beseen on a TV set equipped witha special decoding device.Many viewers without hearingimpairments find ordinary sub-titles (open captions) distract-ing. With closed captions, thesame program can be viewed bygeneral and hearing -impairedaudiences.

NCI was established in 1979 tocaption TV programs. It hascaptioning centers in Washing-ton, DC, and Los Angeles.

The size of captions vary pro-portionately with the size of theTV screen. The captions areeasily visible and do not ob-struct the picture. To ensurelegibility, the area immediatelybehind the captions is blackedout.

Usually, captions are centeredat the bottom of the screen.They may, however, be placedin other locations to identify thespeaker or to avoid blocking theon -screen action.In operation, NCI caption edi-tors arrange the program dia-logue into captions, which arerecorded on a magnetic disc.The disc is sent to the TV broad-caster, where the caption datais inserted into Line 21 of the TVpicture. The broadcaster trans-mits the caption data alongwith the regular picture andsound portions of the program.Because the captions are in theform of an electronic code,they are not visible to viewerswith ordinary sets. However,when a set equipped with aspecial decoding unit is used,the caption codes on Line 21appear on the screen as sub-titles.

Sears, Roebuck and Company,under the product name Tele-Caption, sells two types of de-

coding units: a captioningadapter that can be attachedto any ordinary TV set and a19 -inch portable color set withbuilt-in decoding circuitry,called a captioning TV receiver.

NCI began closed captioningTV programs in March 1980.

The American BroadcastingCompanies (ABC), the NationalBroadcasting Company (NBC),and the Public BroadcastingService (PBS) provide closed -captioned programs. To date,CBS has declined to participatein the closed -captioning serviceon the grounds that it is experi-menting with a teletext systemthat could provide captionedprograms.

More than 150 major advertisersnow have their commercialsclosed -captioned.

Currently, more than 35 pro-grams each week are closed -captioned.

"Live" programs also can becaptioned. In January 1981, NCIbegan to caption "live" pro-grams that had a script, such asall of President Reagan'sspeeches. NCI also now cap-tions one of the three nightlybroadcasts of ABC World NewsTonight. By mid -1982, NCI ex-pects to have perfected thetechnology to caption all newsbroadcasts, as they occur.

There are 16 million Americanswith significant hearing losses,of which about 2 million are pro-foundly deaf. These hearing -im-paired people want access tothe world of communicationsand entertainment that tele-vision provides. Even though.they may not be able to hearsome or all of the soundtrack,hearing -impaired people watchapproximately as much tele-vision as the general popula-tion.

NCI announced in Februarythat Canada's two major TV net-works signed contracts withNCI to begin closed captioningof Canadian programs. Imple-mentation of this service inCanada will significantly in-crease the amount of closed -captioned programming pres-ently available to Canadianhearing -impaired people. Underthe agreement, NCI will captionCanadian Broadcasting Corpor-ation (CBC) and CTV NetworkEnglish -language programmingthrough March 31, 1983."Closed captioning has trulybecome an international ser-vice," John E.D. Ball, NCI presi-dent, said. "This is a wonder-ful endorsement of the Line 21closed -captioning system, andan important step for the manyCanadian hearing -impairedpeople who will benefit fromcaptioned TV."


The DTG-1000N features five identical andindependently microprocessor controlled10 -bit test signal data stores with precisionD/A converters.

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Another experiment in designing a traf-fic report page for the teletext magazine.

and Dukes of Hazzard. Ninety re-ceivers have been placed in homes,and one serves the large population ofdeaf students at California StateUniversity at Northridge.

Real time captioningIn addition to delayed broadcast

teletext captioning, CBS and the Eastand West Coast branches of the Cap-tion Center are collaborating withTranslation Systems, Rockville, MD,on real time captioning.

"We are able now on a sustainedbasis to real time caption several typesof programs with very high accuracyin spelling and with delays of as littleas two to three seconds," Joe Blatt,

Blatt programs the Caption Center'smicrocomputer for use in real time cap-tioning experiments.

Joseph Blatt, producer o -the Captioned ABC News.

producer of The Captioned ABC Newsat WGBH, said.

Real time captioning in this experi-ment achieves such speed because of(and not despite) the involvement ofhuman skill. A court stenographertranslates the audio to phonetic sym-bols using a 23 -key keyboard. Thesesymbols are processed by a JacquardJ-500 minicomputer (128k memoryand 24Mbytes of disc storage).

The translation program and dic-

tionary were developed by Transla-tion Systems. Don Nixon, companypresident, said, "The dictionary is ac-tually a table of algorithmic expres-sions for translating stenographicrepresentations into English. Thereason algorithms are used is becausecertain English words can berepresented by the stenographer inmany different ways. Banner, for in-stance, can be represented three ways,each using two key strokes-as ban nr,ban er or ban ner. The word duplicatecan be represented 65 different ways,and it gets even more complicatedwhen you add four possible endings."

Continued on page 30

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Our Agile 24 satellite receiver systemmakes things perfectly clear.Standard Communications' new Agile24M/S satellite receiver system doeseverything a broadcast studio modeldoes-except cost as much.

The Agile 24M is a highly cost-effec-tive, reliable satellite receiver featuringadvanced circuitry like a fully synthe-sized phase -lock -loop tuning syEtem, apre -selector tracking filter, and a PLLdemodulator. Dual conversion designconverts the incoming signal twice forbetter selectivity and image rejection.The threshold extension circuit reducesnoise by as much as 2 dB on darkscenes, delivering a static threshold aslow as 5.5 dB carrier -to -noise. Tiatmeans blacker blacks in dark scenes,with reduced sparkles.

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slave receivers as required to satisfy anysatellite communicatons system. Theunique Agile 24S slave receivers offer allthe operating features of the Agile 24Mwith the exception of the first block clownconverter. The active amplifier loop -through design of the Agile 24S is cost-effective, eliminating need for redur dantpassive power dividers.

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The Agile 24 receiver system carriesStandard's fu I technical support. Systeminstallation and alignment is facilita-ed byenlarged schematic diagrams and anillustrated technical manual. Standard'sfield enginee-s offer operator training aswell as on -site repairs. Where factoryservice may De required, 48 -hour turn-

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IF IT WERE YOUR JOBTO GET THIS ON TAPE,WHAT TAPE WOULDYOU GET IT ON?

For the first time, mankind will set foot on asurface other than earth. It's a moment thattranscends science and politics. A moment thatwill be seen and reseen all over the world for aslong as mankind exists.

But there are no guarantees at a momentlike this. And the stakes are just as high for failureas they are for success. So nothing is left tochance.

That's why Scotch° Video Tape was therewhen the Moon Walk was first recorded. Andagain when the Space Shuttle Landing was firstrecorded. And again when the U.S.-RussiaHockey Game was first recorded.

The Papal Tour of America. The Return ofthe Hostages. The Eruption of Mount St. Helens.Whenever there was one chance to get it,chances are they got it on Scotch Video Tape.

So whether your production is important tothe world or just important to you, why takechances? Get it on the one tape you know willget it right.

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HISTORY IS RECORDED ON SCOTCH VIDEO TAPE.3M hears you...

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Julius Barnathan (left) president, ABC Broadcast Opera-tions and Engineering, was given an honorary Doctorate ofScience degree at the 118th commencement of GallaudetCollege in Washington, DC, for his contribution to thedevelopment of closed captioning for the hearing impaired.

Shown with Barnathan is Dr. Malcolm J. Norwood, chief,Captioned Films and Media Applications Branch, SpecialEducation Programs, US Department of Education,Washington, DC, who presented the degree.

The citation reads: "Julius Barnathan is an engineer byprofession and an executive in one of the nation's largest TVand radio corporations because of his astute managementability. As president of Broadcast Operations and Engineer-ing for ABC, he is the proverbial busy man. He was not toobusy, however, to observe the National Bureau of Standards'

Dr. JuliusBarnathan

new technology which appeared in 1971 for transmitting timeand frequency information in hidden fashion on Line 21 ofthe TV spectrum. He saw immediately the implications ofthis technology for providing closed captioning for the deafpopulation of America.

"As the years passed, Julius Barnathan became the leaderof a unique coalition of many interests and guided thedevelopment of this system through a maze of technical,legal, financial and production landmines until it became apractical reality in the lives of thousands of hearing -impairedpeople.

"Gallaudet College, by means of this citation, wishes torecognize Julius Barnathan as the father of closed -captionedtelevision. It is always good to welcome a genius into theGallaudet family."

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FCC proposes 2° sate lite spacing.

The rew Andrew 4.5m and E m earth stationanternas already meet proppsed FCC regula-tions which wculd reduce satellite spacing to2° New production techniques on these ESA5series antennas have resulted in significantsavings The swings will be passed on to you.

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The following chronologyshows the growth at ABC Tele-vision in emphasis on closedcaptioning for the hearing im-paired. The initial date is that forthe formal announcement of anevent; the airing date is notedwithin the descriptions.

1977March 10Frederick S. Pierce, president,ABC Television, proposes that thegovernment organize forces todevelop a system to help the deafenjoy television.

1979March 26ABC is cited by Joseph Califano,HEW secretary, for its 8 -year ef-fort to develop an industry -wideclosed -captioning program for thedeaf.

1980Jan. 23Eight is Enough, Vega$, BarneyMiller, and The ABC Sunday NightMovie to be closed -captioned.March 10ABC begins its participation inclosed captioning with the tele-cast of Force 10 from Navarone,The ABC Sunday Night Movie(March 16).Aug. 26The ABC Friday Night Movie, LoveBoat, Barney Miller, Three's Com-pany, and Eight is Enough to beclosed -captioned for 1980-81.Dec. 15ABC Sports' telecast of the SugarBowl on Jan. 1 to be the firstsports broadcast and first live pro-gram of any kind to be closed -captioned.Dec. 31ABC News' live coverage of thePresidential Inauguration to beclosed -captioned (airing Jan. 20,1981).

1981March 30ABC to present future telecasts ofABC Afterschool Specials withclosed captions starting April 15.May 26ABC Television to increase theamount of closed -captioned pro-gramming it presents in primetime from five to eight hours perweek starting June 2.Sept. 1ABC Sports' 1981 schedule of NFLFootball telecasts to be presentedwith closed captions beginningSept. 7. (Schedule: 16 Mondaynight games and four prime -timespecials.)Sept. 17Kellogg Company agrees tounderwrite closed captioning bythe National Captioning Instituteof seven ABC AfterschoolSpecials programs in the 1981-82season.Sept. 29ABC adds The ABC Sunday NightMovie, and Benson to its weeklyschedule of closed -captionedentertainment programs for the1981-82 fall season.Oct. 14ABC Sports' live and exclusivecoverage of the World Series to bepresented with closed captionsstarting Oct. 20.Nov. 17Beginning Monday, Nov. 23, ABC'sWorld News Tonight to becomethe first regularly scheduled news-cast to be closed -captioned.Dec. 1Happy Days and Bosom Buddieshave been added to ABC'sschedule of closed -captioned,prime -time entertainment pro-grams.Dec. 3Nabisco Brands agrees to under-write the closed captioning by theNational Captioning Institute ofthree prime -time holiday specials.Dec. 9The Leprechaun's Christmas Gold(Dec. 12), John Denver and theMuppets- A Christmas Together(Dec. 22), and Frosty's Winter

Wonderland (Dec. 22) to be airedwith closed captions.Dec. 15Miller Brewing Company agrees tounderwrite the National Caption-ing Institute's closed -captioningof ABC Sports' live telecasts offour football bowl games.Dec. 29A Matter of Time, an Emmy-winning drama, to be aired on Jan.20, 1982 with closed captions inthe ABC Afterschool Specials.

1982Jan. 11Nabisco Brands agrees to under-write closed captioning for sixABC Afterschool Specials fromJan. 20 -April 14.Feb. 22Real time closed captioning an-nounced for telecast of OscarAwards (March 29).Feb. 24American Express agrees tounderwrite closed captioning ofNight of 100 Stars (airing March 8).March 10ABC Weekend Specials to beclosed -captioned (airing March 13and 20).March 11Joanie Loves Chachi and 9 to 5 tobe closed -captioned (airing March23 and 25, respectively).March 11All-star entertainment extravagan-za I Love Liberty to be closed -captioned (airing March 21).(Note: At this time ABC is presenting 81/2hours of closed -captioned programming eachweek. Also closed -captioned are ABCAfterschool Specials, World News Tonightand, during the fall, Monday Night Football.)May 3The 5 -hour special Inside the ThirdReich to be closed -captioned (air-ing May 9 and 10).May 17Julius Barnathan, president,ABC's broadcast operations andengineering, receives honorarydoctorate degree from GallaudetCollege for his pioneeringengineering efforts to provideclosed -captioned television forthe hearing impaired.


A.

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C.

D.

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O

STANTRON proudly presents its' new "SUPREME" CABINET SERIES .

Starting with the STANTRON basic -cabinet module, fully described in the STANTRON catalog "cabinet -style" section, we have developed a new "design appearance," still maintaining the structural integrity re-quired by the electronics industry.

Cabinet -frame design.

Horizontal trim #H6 included (laminate provided for engraving or silk-screen-ing by customer).

1034 "Projected" 19" or 24" panels for front, rear or top panel space.

ERemovable vertical, decorative -trim that "hides" the head of the1,;,..../*'° panel screws. It easily "snaps -on" and "snaps -off." Sold in pairs.

Side panel design. Our new side panel is removable from the outsideby a "touch/push" of your finger tips. This feature allows you to service

your installation through the cabinet -side. There is no visible hardware to de-tract from the design appearance.

3%11.


F. We offer two new types of casters.

As shown above in the above photographs (assembled cabinet andexploded view), our drawer fronts, also, have the projected panel front to

conform with the new 19" or 24' projected panels.

G.

H. Available in four cabinet frame depths: 185/8", 221/4", 255/o", 307/8" (add13/4" for the rectangular tub,ng "add-on" design).

I. From one to four color combinations are available on one cabinet assembly.With STANTRON'S 17 colors to choose from PLUS 2 laminate colors, you candesign your own aesthetically -pleasing cabinet design.

J. All STANTRON accessories, described in STANTRON'S catalog #104, may beused with the new STANTRON "SUPREME" CABINET SERIES.

TELEPHONE: MAIL ADDRESS P.O. BOX 9158 V.C., NO. HOLLYWOOD, CA 91605 U.S.A. TWX

(213) 875-0800 STREET ADDRESS 6900 BECK AVE., NO. HOLLYWOOD, CA 91605 U.S.A. 910-499-2177

Continued from page 22

At the Caption Center's Boston office,current captioning/subtitling projectsare listed. They include open captioning(visible on all home receivers), close cap-tioning on Line 21 of the vertical blank-ing interval (visible only on receiversequipped with a decoding device), andsubtitling of foreign -language operasand films.

Stuart Cleland, associate producer, pro-grams captions into a computer for laterdisplay as part of the Captioned ABCNews.

A still from the Captioned ABC News,open -captioned each weeknight sinceDecember 1973 by the Caption Center.

Rebecca Berwick, production secretary,checks a caption script for spelling er-rors, timing problems and meaningchanges.

A still from Jack London: A PerscnalPerspective, produced by KOCE-TV,Huntington Beach, CA, and open -captioned by the Caption Center.

CURRENT CAPTIONING

I CAPTIONED ABC NEWS2 POWERHOUSE3 KENTUCKY PSAS4 ISSAS TREASURE5 NOVA:

STRANGE SLEEP6 AIDA

A still from A Piano For Mrs. Cimino,starring Bette Davis on The CBS Movie,closed -captioned using teletext as partof the CBS teletext test in Los Angeles.

The English translation is displayedon a CRT pre-programmed withteletext instructions-such as colors,font size and specific rows to be used.The captions then proceed throughthe teletext encoding equipment,resulting in a TV signal carryingaudio, video and real time captions.

"NCI did the first network real timecaptioning of the Academy Awards inMarch," Blatt said, "but much of thatshow was scripted and the captionsprepared beforehand. We expect byfall that the Caption Center with CBSwill do real time captioning of a break-ing news event, perhaps an upcomingjourney of the space shuttle."

After the real time captioningsystem is in place, Blatt foresees thepossibility of using computers toassist every step of the captioningprocess.

Real time captioning is beingphased into the ABC news. By July 1,NCI expected to be taking the6:30p.m. feed of that newscast andpreparing verbatim closed captionsfor broadcast at 7p.m. over Line 21 ofABC's network video feed, under con-tract with the Department of Educa-tion. The goal is genuine real time cap -

tioning within a year. The plan is forthe PBS rebroadcast to become adecoded version of NCI's verbatimreal time captions. Commercials willprobably still be replaced with sixminutes of original features and news.The open -captioned program isplanned for phase -out in 1983.

"Even as we develop the nextgeneration, which is real time caption-ing, we're keeping track of thepossibilities for the generation afterthat, which is voice recognition bycomputer," Blatt said.

But that immense engineeringbreakthrough, predicted 20 years agoto be 20 years in the future, still seemstoday to be two decades away.

Captioning, whether real time or de-layed, is one use of teletext. The sec-ond major story at the Caption Centertoday is a teletext magazine, one of on-ly a handful being tested in the coun-try.

This month, WGBH will begin trans-mitting a 70 -page teletext magazineover Channel 2 in Boston. Fifty pagesare being devoted to news, weatherand community -access information.Sports fill 20 pages. In September, theCaption Center will add another 30

pages of educational material. KarlRenwanz, the station's director ofengineering, is responsible for over-seeing the technical production of themagazine. "The Los Angeles projecttaught us a lot," he said. "That was thekey to getting us on track so quickly."

It was on Feb. 9 that WGBH and theFrench company, Antiope andTelematics Corporation, announcedthe 1 -year joint venture. Antiope fur-nished one keyboard at the head -end,an editing system and floppy discs,multiplexer, diffuser, monitor and 20receivers with decoders.

"The receivers will be placed so wecan test what kind of antenna systemworks best and what else affects thereception of teletext," Renwanz said.

Shelley Isaacson, teletext projectmanager, described the reasons thatthe Caption Center is producing theteletext magazine. "Our objectives inthis demonstration will be to furtherevaluate teletext's potential, to en-courage local and national interest, toassess community reaction, and todevelop a long-term strategy forWGBH in providing this service," shesaid.

I r:.)))11


A IA CORPURATIEIN

ESPDigital StillStore System.On-line previewing and editing; automaticsequencing; the instant creation of multi -layer graphics.

Today a concept we helped pioneer-the electronic storage and retrieval of

video images for graphic production andpreprogrammed on -air use-is becomingan industry standard for the technologicalleaders in television and video production.

Now we've put our years of experi-ence into a new generation of still storesystems. And from the 150C for mobile ap-plications to the large, multiple drive 750C,our microprocessor -controlled, expand-able systems have a production versatilitythat can't be beat.

With a price/performance ratio tomatch.

The Basic System.Our ESP 750C Digital Graphics System con-sists of an Analog/Digital Processor, aMaster Control Panel, and standard com-puter industry disk drives. But the built inflexibility of our system makes it easy toexpand. Each Analog/Digital Processorcan accommodate up to four drives. Youcan add up to a total of fifteen remoteproduction panels. And more off-line

storage with up to 99 separately identifieddisk packs.

Our dual channel output and frontend synchronization allow you a choice ofinputs and a wider range of capabilities.

0And the 750's second generation

digital electronics give you a production -oriented sequence and memory systemthat lets you perform last minute editing.Add or delete within a sequence. Createmultiple generation graphics with virtuallyno degradation in the quality of youroriginal image.

Smart Control.ESP's intelligent controls make the C Seriesa production tool, that goes easyon everyone in v"4:i your operation:Technical ) directors,

'`"*°-1'graphi'`"*°-1':-,T.11,' artists, andproduction staff alike.

Our standards include: A built-in operator prompter. Single function keys. A rapid -access sequence and

memory system. Built-in safety features.

Great Optional Features.The ADDA ESP C Series offers you someimportant optional features, too. Time-saving production tools like our Multipix"electronic storyboard." A Multiple AccessController for simple modular expansion. ADigital Interface Board with program-mable electronic interfaces that permitsour system to be linked with stationautomation systems.

WORE .Of SSCONTROLI

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MAW,

At ADDA Corporation, we pioneeredthe concept of economical, efficient, elec-tronic graphics generation. And we thinkwe're the best in the business. A lot ofother people think so, too. Nearly 80°/a ofthe digital still store systems in use todayare ours.

But don't take our word for it. Giveus a call and let us show you what ouryears in this industry have produced.

Affordable Excellence.

AUEIA CIMPLIFIATION

1671 Dell AvenueCampbell, California 95008[4081 379-1500


Getting the picture:Video monitor surveyA picture may be worth a thousand words. It may also be worthseveral vectorscope and waveform monitor displays. For thisreason, our survey looks at some established and recentlyintroduced TV video monitors of interest to broadcasters.Color and monochrome composite video models, as well

as RGB units, are included.

By Carl Bentz, technical editor

A good portion of Part 73 of the FCCRules and Regulations deals withspecific technical signal limits withinwhich TV stations must operate.Those limits have been determined inpart to assure a viewable picture onthe properly operating home TVreceiver. The TV test equipmentsurvey (BE May 1982) looked at wave-form monitor and vectorscope unitsneeded for waveform quality evalua-tion to remain within those FCClimitations. However, only to the mosteducated eye does a waveform displaytell the whole story. Video monitorsfind wide use in the broadcast facilityto observe the overall picture quality.In short, it's hard to see a picturewithout a picture monitor.

In today's communications almosteverything is in color. Uses are foundfor some program inserts unavailablein color, special purpose materials inmonochrome for impact, and old mo-tion pictures. But the major portion ofprogramming is in living color. Formonitoring these programming ef-forts, a monitor with P22 phosphormaterials in the CRT finds varied usesin stations. Budgets may restrict thenumber of color monitors an operatoruses, however, and in those instancesmonochrome monitors continue toalert engineering and production staf-fers of picture quality conditions.

There was a time when even theCRT in the camera operator's view-finder used P22 materials. The addi-tional setup time to maintain suchsystems was a deterrent, resulting ina reversion to monochrome view-finders with special switching cir-cuits. Such switching allows in-dividual R, G and B signal observa-tion. Often, special test combinationsare also provided for the black -and -

white viewfinder unit.In the control room, black -and -

white monitors have retained an im-portant position. Individual camerachain monitoring, for engineering anddirectorial positions and previewingrequirements, may often be served bythe less expensive monochromemodels. Final program line monitorsand special purpose equipment, suchas graphics systems, backgroundgenerators or character generators,are better served by color models.Editing suites also need to have colorcapabilities, although some users re-quire only monochrome units.

Picture size is of importance to bet-ter get the picture, to see imperfec-tions and to track down pre-RFmodulation interferences. Resolutionis also of vital consideration, par-ticularly to determine such qualitiesas camera focus and picture detail.Resolution also plays a large partthe many graphic arts imaging sys-tems now available. Fortunately,most of the critical evaluationmonitors have provisions allowingthem to be multipurpose, with A andB inputs and occasionally RGB inputs.Routing switching also allows greateruse of the more expensive systems.Practical needs, then, tend to dictatethe monitors used.

In mid -April video monitormanufacturers were contacted to sub-mit short descriptions of their moreimportant models. Limitations wereplaced on materials to include at mostthree color models and onemonochrome unit from eachmanufacturer. This survey is basedupon materials received from themanufacturers and does not attemptto provide a general roundup of allmodels available.

AMTRON CORPORATIONUniversal Color Display

Precise color registration in thisdisplay results from an in -line shadowmask CRT. H -scanning and framerates are selectable with all digitalsync processing and vertical deflec-tion. This series of NTSC monitors in-cludes crosshatch, color bar and grayscale test signals.AM series

For NTSC work, the AM series of-fers 5-, 8-, 12-, 17- and 26 -inch modelsbased on Trinitron CRTs. Of the ser-ies, the 26 -inch unit may be obtainedin an RGB design. Dual -video inputsare available with internal/externalsync selection. Pulse cross is optional.PAL standard models are availableupon request.7800 series

Both 13- and 19 -inch models makeup the 7800 series of color monitorsfor high resolution applications. De-signed for use in critical signal evalua-tion of broadcast or productionfacilities, a bandwidth response to10MHz results in a minimum resolu-tion of 500 TV lines center screen.


ASACA/SHIBASOKUCORPORATION OF AMERICACMM 20-7

This color monitor features wide -band R-Y/B-Y decoding (1.3MHz),comb filtering and aperture control.All boards are constructed using in-tegrated circuits. A wide range ofAFC adjustment covers 0.5 to 7ms inthree steps. The monitor comes with a2 -year warranty on all parts and labor,including the 20 -inch CRT. A 14 -inchmodel is also available.CMM 20-11

This color monitor features I/Qdecoding, special comb filtering andfront panel selection of multistandardoperation. Specially designed feed-back circuits keep color variation to aminimum. To reduce temperaturechange effects, the convergence panelis not located in the pull-out drawer.H and V delay, AFC time constant andaperture correction are included withRGB as an option. A 2 -year warrantyincludes the 20 -inch CRT or anavailable 14 -inch model.


AUDIOTRONICS10VM985

The 10VM965 monochrome 10 -inchmonitor features 100% solid-state cir-cuitry. A bandwidth in excess of20MHz allows 800 -line horizontalresolution. Key controls are accessedfrom the front. Screwdriver ad -


There's a revolution going on. TV broadcasters are cDmpeting with VCR, videodisc, premium cable, and other servicesfor the eyes and ears of a mass audience that's becoming more aware of good sound I-) this audio war, '60's process ngtechnology doesn't cut it.Enter OPTIMOD-TV. It's the same second generation OPTIMOD-FM sound that's sweeping the country, Kithenhancements to adapt it to the specific needs of TV broadcasters. Smooth multibald compression teams up with ourpatented "Smart Clipper"TM and FCS overshoot corrector to create a tight!' bandlimi-ed, eak-controlled outputthat stays out of the video and is ready for TV stereo. And stereo processing is sup 3liec standard.The processor rides gain and peak -limits with remarkable subtlety, achieing supe-i.-:.r consistency,openness, and naturalness on the finest master -quality audio or the poones] 1Ernm o:tical film.OPTIMOD-TV gives you the potential to bring your audio up to the sam?, cuality as you -state -of -the -art picture. Processing is no longer the limiting factor. So p an youraudio strategy for the great war of the '80's around OPTIMOD-TV Model8108A. Your Orban broadcast dealer can tell you more. Or contact usToll Free (800) 227-4498. In California (415) 957-1067 for more in-formation.

Ckcle (26) on Reply Card

Orban Associates Inc.645 Bryant St.San Francisco, CA94107

NEVER BEFORE HASTHIS VITAL

COMPONENT BEEN SOSUCCESSFULLY

INTEGRATED INTO ATVIDEO RECORDER.


SONY INTRODUCES A 1" VIDEORECORDER TAILORED TOTHE PEOPLE WHO USE IT:

THE BVH-2000.Because Sony probably has

more experience selling andservicing 1" VTR's than anyoneelse, we're in an unequaled posi-tion to understand the wishes of 1"video users.

And now, Sony announces wish ful-fillment for the broadcast industry:the new BVH-2000 1" video recorder.

WHY "BVH-2000" WILLMEAN DIFFERENT THINGS TO

DIFFERENT PEOPLE.In broadcast recording, there is no

such thing as one typical situation.That's why there's no one single

BVH-2000.The BVH-2000 actually allows you

to "design" the VTR you need for yourown particular applications and budget.

You can choose among three differ-ent control panels-ranging from abasic model to one with virtually everypossible feature and function.

And the tape transport system, sidenal system, and control section caneither be combined into a single unit, orseparated easily and installed in a 19" rackor console.

The BVH-2000 also gives you far greater latitude in settingup your entire recording system. Various remote -control con-

nectors enable you tointerface your systemin a variety of waysfor studio, mobile, andediting configurations.Direct interfacewith U-matiC andBetacanim is possible,

A range of plug-in accessories is available. too. The BVH-2000also has an optional plug-in time base corrector.

What's more, the BVH-2000's lighter weight and smaller size(almost 50% less than its predecessor) make it as ideal on theroad as it is in the studio.

And because of the ever-increasing number of applicationsrequiring longer program times, the BVH -2000 provides up to 2hours of tape time.

A VTR THAT LEADS THE SIMPLE LIFE.In the BVH-2000, unlike most other VTR's, microprocessors

are used to their full advantage. All data nec-essary for servo control are channeled intoa central processing unit, making theoperator's control over all systems andfunctions simpler and more precise.

Life is made simpler yet by the fact thatevery necessary function control, meteringfacility, and electronic module is accessiblefrom the front.

Even the way the tape moves through therecorder has been simplified. One innova-tion-an extremely precise servo mechanism

The

Display hoard t -or self-diagnoati, andother data-processing functions.

W u UU LIU LI

1110 J LJ 1111

-permits the entrance and exitguide posts to move about 10mmaway from the drum duringthreading. The result is the eas-iest threading system ever ina 1" video recorder.

THE MOST ARTICULATEVTR EVER BUILT.

The BVH-2000 removes muchof the mystery from maintenance,

too. It literally tells you aboutmalfunctions-usually well before you'dnotice them yourself-through amicroprocessor -governed self -diagnos-tic system.

The system includes various alarmfunctions and numerous checks toconfirm that

everything isworking proper-ly. Most defectscan be easilyfound-allowingfor far less com-plicated main-tenance andrepairs, and re-ducing down-

time considerably.And because

the best wayBVH-2000 (shown with Type -III control panel). to simplify mainte-

nance is by lessening the need for it, theSony BVH-2000 has been designed to bevirtually maintenance -free down to thelast detail. For example, only brushless DC motors are used, andall incandescent lamps have been replaced with high -bright-ness LED's.

Other welcome advances include a greatly expanded dy-namic tracking range (from reverse at normal speed to for-

ward at 3 times nor-mal); programmedplay (allowing you tovary playback speedacross a rangeof ± 20% of normalspeed); and videoand audio confidence.

Remarkably,these are only some

of the Sony BVH-2000's innovations. All of them add up to formthe answer to virtually every need ever expressed by the users

of I" video.To find out how it can answer

yours, write Sony Broadcast, 9 West57th St., New York, NY 10019. Or

call us in New York/New Jersey at;,201) 368-5085; in Chicago at (312) 860-7800; in Los Angeles at (213) 537-4300; inAtlanta at (404) 451-7671; or in Dallas

at (214) 659-3600.

If ;

Front aveess to all electronic circuits and modules.

To simplify threading. guideposts automatically

move away from drum, andaudio head cover opens.

SONYBroadcast

Sony and U-matic are registered trademarks and Betaeam is a trademark of Sony Corp. © 1982 Sony Corp. of America, 9 W. 57th St.. New Yi.wk, N.Y. 10019.



justments are available for verticallinearity, height and focus. Aregulated power supply is used. Thefast AFC circuit is useful for helicalscan VTR displays.9VM967

With a low price, the general pur-pose 9VM967 monochrome 9 -inchmonitor features 700 -line resolutionfrom a bandwidth in excess of10MHz. The single heavy-duty chassisconstruction provides up -frontoperating controls, simplified serviceadjustments and time-lapse VTRcapability. A dual rack -mount kit isavailable.6VM917T

Three 6 -inch monochrome monitors'sit side -by -side in the Triple -sixmonitor 6VM917T. Each features 600 -line resolution, 1000/0 solid-state cir-cuitry, easily replaced regulation anddeflection transistors, readily accessi-ble components and intercompart-ment shielding to prevent crosstalk.The group is available in either a rackor desk -top metal cabinet.


CONRAC CORPORATION6100 series

The 6142 is one of the master colormonitor series. Precise colorimetry,automatic stability of colortemperature and switchable combfiltering are highlighted. Beam cur-

rent feedback controls the colortemperature, while operationalamplifiers provide independent con-vergence control on the 19 -inch Col-ourmatch CRT. The 6142 serviceNTSC standards and the 6123 offersPAL, in rack or cabinet models.5700 series

A 13 -inch Colourmatch CRT is usedin the 5700 series monitors, designedfor VTR over -console, high resolutionrequirements. A standard subcarriernotch filter is included, with combfiltering optional. The bandwidth ex-tends to 5.5MHz with aperture correc-tion for + 6dB boost at 3.2MHz. Bothrack and cabinet models are availablefor NTSC and PAL use.5300 series

The 5300 series color monitor uses a19 -inch CRT designed for budget -limited applications. Preset controlsare included for contrast, brightness,chroma, phase and aperture. NTSC,PAL or SECAM standards may beserved. Monochrome frequencyresponse is with ± 1dB to 5.5MHz,with 450 minimum vertical definition.DZB series

For professional monochrome re-quirements the DZB series provides a14 -inch display. Available for EIA andCCIR standards, a linearity rating of1% of picture height and frequencyresponse of ± 1dB to 10MHz arefeatured. It is compatible with VTR

over -console mounting applications.Circle (253) on Reply Card

ELECTOR (Barco)CM 33 HRB

The 14 -inch CRT in the CM 33 HRBcolor monitor yields high contrast andbrightness with an in -line mediumresolution delta dot shadow maskCRT with a 0.43 pitch. The front panelRG off -switch eases setup, whileselectable over/underscan aids in VTRsetup. Critical viewing without colorsoftening or hidden noise will beserved off the shelf, with a pulse crossoption added in the fall of 1982. NTSCand RGB models are provided.CM 51 HRB

A 0.47 pitch in -line delta dotshadow mask tube offers mediumresolution in a 19 -inch tube of the CM51 HRB. Color remains crisp and noattempt is made to hide noise for im-proved critical picture evaluation.Pulse cross will be offered in October1982. Front panel switching providesRG off and over/underscan controls.


ELECTROHOME ELECTRONICSG09 series

The G09 high resolution RGBmonitors are designed for data andgraphics needs. The 13V CRT is of theself -convergence type with in -line gunand a 0.3mm dot pitch spacing. Up to

The Affordable, ProfessionalR erb.

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The Orban 111B has become an industry stan-dard for some very good reasons: it's an affordable, reliable reverb thatcomplements your sound instead of muddying it. Orban's broadcast -quality construction, uniquesignal processing, flexible equalization, low noise, and extensive RF-proofing make the difference. Unlike cheaperreverbs, the 111B is a unit you'll want to live with long after the honeymoon is over. And you can pay more withoutgetting the 111B's bright, transparent sound.

You'll find that sound ideal for both program line enhancement and production use. The Orban 111B is thereverb of choice for the demanding broadcaster-it gives the polished, professional touch to your in-house spotsand promos. Call your local Orban dealer today and find out more about the practical, professional 111B.

oibanOrban Associates Inc., 645 Bryant St., San !Francisco, CA 94107 (415) 957-1067



Think of usas your

mike expert.

The C094.All miniatures are notcreated equal.Until now, the engineer faced withselecting a miniature microphone washard pressed to find any dramatic dif-ferences in performance. That is, up untilthe Electro-Voice C094.

For starters, the C094 offers unprec-edented dynamic range. It has 10 dBgreater sensitivity and 20 dB greater inputSPL handling capability than the bestknown competitor. This high performancein a package so small makes the C094ideal for stereo spaced-omni recording,binaural recording and close miking ofhigh output musical instruments, as wellas standard lavalier applications.

The C094 also offers exceptionalpowering flexibility. It can be powered bya standard 9 -volt radio -type battery. Orit can be phantom powered from a mixingboard, recorder, or in -line supply. The

9 -volt battery can even be used as aredundant power source to "back up" thephantom power. Plus, the C094's ad-vanced electronic design permits power-ing from virtually any DC power supply,(even an "el cheapo" battery eliminator)capable of delivering between 8 and50 volts.The internal regulation and filter-ing will make the 0094's impedanceconverter swear it's being powered byan over -priced import supply.

These and many other performancefeatures set the C094 a giant step abovethe other miniatures you previously hadto choose from. The C094 is a versatilenew kind of tool, and just one more rea-son why you should think of Electro-Voiceas your microphone expert.

Ey ElectroVoicen crulton company

600 Cecil Street, Buchanan, Michigan 49107

In CanadaElectro-Voice Div of Gulton Industries (Canada) Ltd .345 Herber St . Gananoque. Ontario K7G 2V1


80 characters per line may be dis-played, using TTL or RS170 RGBanalog inputs. Resolution is 720x512pixels.ECM1302

The ECM1302 color video monitoris built to perform to internationalstandards. Inputs for the monitor areRGB (TTL) signals, but an optionalNTSC interface module is available.Two different CRTs are available, oneproviding 370x235 pixels resolution,the other offering 580x235 pixels froma 10MHz video bandwidth.EVM series

The EVM monochrome monitorseries includes CRT sizes from 9- to23 -inch. Video bandwidth response is± 1dB at 12MHz, ± 3dB to 15MHzwith a resolution of 800 lines at a2001x illumination. Front panel con-trol of image size varies from 105% to80% of full picture. Geometry is heldto ± 2% overall with linearities at 2%overall vertical and 2% of pictureheight.EDM series

EDM models include a 9- and12 -inch format for rack or cabinetmounting. The 10MHz frequencyresponse gives a 750 -line resolution.Scan adjustment is available for 85%to 105% of full screen size, with alinearity change of less than 2% withthe size change. Geometric distortion

will be less than 2% of screen height.Circle (255) on Reply Card

FERNSEHMC-37BA

The precision color MC-37BA isavailable for every color standard. Allunits accept RGB inputs with thespecific standard decoder on a plug-incard. Pulse cross, blue gun only, threeselectable inputs or a mixture of threeinputs may be controlled. Besidesdisplaying the signal on a self -converging 15 -inch CRT, the monitorprovides R -Y and B -Y axis outputs.MC-37BB

The MC-37BB color monitor is de-signed for critical evaluation use andmay be ordered for RGB, PAL, PAL-M, NTSC and SECAM systems. A15 -inch in -line CRT is used in thesmall, lightweight package monitor,which may find application as amobile unit. If precision decoding isrequested, decoded video is availablefor vector displays.MC-3113AB

The MC-51BAB precision colormonitor uses a 20 -inch CRT. The unitcomes with RGB capability and onestandard decoder. A second optionaldecoder may be installed. Underscan,pulse cross and blue gun only controlsare included with remote control ofmany functions optional. The CRT is

CIRCULAR WAVEGUIDETRANSMISSION LINE

elfgaillwith the new VerticalSpring Hangers maketall tower installationsa breeze. The twistresistant hangerssupport each sectionwith a constant forcespring that willaccomodate up to 2feet of thermalexpansion. For moreinformation, contact

MICRO COMMUNICATIONS INC.PO Box 4365, Manchester, NH 03108

a high resolution delta -gun type with ablack mask and US phosphors.


HITACHI DENSHI CORPORATIONOF AMERICACM -182

The CM -182 color monitor employsan in -line 18 -inch CRT for NTSC dis-play to 370 lines resolution. Three -

axes decoding is developed from ICdevices for added stability. Aperturecorrection avoids ringing. For RGBuse, request the CM -1822.VM-906A

Monochrome resolution to 700 linesis offered by the VM-906A. Solid-statecircuitry ensures reliability. Deflec-tion linearity on the 9 -inch screen in-cludes less than 1% error. Models areavailable for 525- and 625 -line stand-ards.VM-129

A 12 -inch monochrome CRT pro-vides resolution in excess of 700 lineson the VM-129. IC and transistor cir-cuitry design provides added reliabili-ty. The picture remains stable evenwith VTR playbacks. Deflectionlinearity errors are rated at less than1% for use on 525- and 625 -linesystems.VM-173

Solid-state circuitry drives the17 -inch CRT of the VM-173 for a

PRE -WIRED

Eliminates TiresomeChristmas Tree Blocks

EASIER TO INSTALL EASIER TO USE EASIER TO PAY FOR

FARRTRONICS MANUFACTURES QUALITY INTER-COM SYSTEMS, AUDIO PATCHFIELDS, DISTRIBU-TION AMPLIFIERS AND AUDIO CONSOLES.

Ask for our customer list.

151 BENTLEY ST., UNIT 1, MARKHAM, ONTARIO, CANADAL3R 3X9, (416) 475.6720

write for our free folder of Product DataCircle (31) on Reply Card



HITACHIFP -22 Color Camera SystemWith Microprocessor for Automatic Set -Up

2-FP22-3 Tube Saticon cameras2-A10 x 11 BRW 10-1 lens power zoom F1.62 -Operation panels with 50' cables2-5" and 2-11/2" View Finders2 -Lens drive kits2-A.C. adaptors1-PVM 8200 8" color monitor1 -WV 5203 triple 5" monochrome monitors1-M67 audio mixer

1-6142 Crosspoint latch production switcher1-6006 Sync generator1 -Service manual1-528 Tektronic Waveform monitor1-BPM-1 Burst Phase Meter1 -McMartin amplifier and speaker2 -sets batteries and charger2 -Sets wood tripods - 0';_";onnor fluid heaas -

dollies with deluxe wheels

Modular three piece portable studio, packaged in protective cases with front and rear hard shell covers.Single cable interconnect between modules for quick and simple set-up.

$45,600 Delivery andWarranties Included

Full line distributorfor all Hitachi

video productsLERRO

ELECTRICAL CORPORATIONCOMMUNICATIONS SYSTEMS DIVISION

3125 North Broad Street, Philadelphia, PA 19132


For further details215-223-8200

Ask for John Neri


ELC0111/BAUERFM RADIO TRANSMISSION

The Simplicity and Stability of Grounded Grid andOne Tube Design: The Best of Both Worlds in a New,

10,000 Watt FM Transmitter.

In a power range from 3kW to10kW, the broadcast engineer cannow have the reliability, efficiencyand low maintenance that areinherent in a one tube transmitterdesign. Combine with this the oper-ational benefits of a grounded gridconfiguration power amplifierstage that requires no neutraliza-tion and you have the best of bothengineering worlds.Add to This a New Exciter,Solid -State IPA and ExclusiveBroadband, Low -Loss FerriteCombining

The new 690A Exciter is theheart of all Elcom/Bauer FM trans-mitters. Its advanced solid-stateengineering delivers great fre-quency stability while assuring youan exceptionally clean signal forfurther amplification.

Our solid-state IPA consists offour power amplifier modules (2amplifiers per module) when com-bined produce 1,000 watts of drivepower, with plenty of power inreserve. All of these modules areidentical and loss of one of the fourdriver amplifier modules will notresult in an off -air condition. Allmodules are broadbanded andrequire no individual tuning overthe entire 88-108 MHz FM band.The modular design gives youback-up capability for more reli-ability in addition to an overallreduction of transmitter tuningrequirements.

The exclusive Elcom/Bauer fer-rite combiner is also broadband totake full advantage of the newsolid-state IPA.

Easy Access and SpaciousCabinets for EngineeringMaintenance

Every component in an Elcom/Bauer transmitter is readily acces-sible; full-length, non -interlockedfront doors and side panels, whichmay be removed if necessary, areprovided along with interlockedrear doors. High voltage groundingswitches and grounded shortingsticks are provided. In addition toroominess and ease for the engi-neer, every safety precaution hasbeen re-examined and no com-promises made in assurance ofoperator safety.Extensive Features ThatGuarantee Performance/Reliability

All important operating pa-rameters are metered includingoperating elapsed time and ACline voltage. Solid-state rectificationis used exclusively in all powersupplies that are conservativelyrated and easily accessible.Rugged variable inductors of solidbrass (silver plated) are used toprovide simple, stable tuningadjustments.

Automatic recycling restarts thetransmitter should a momentaryfault occur. A tally light memorykeeps the appropriate fault indica-tor lamp lit until it is reset locally.

Interfacing to remote control orATS systems is simple with all ofthe standard functions accessible

via terminal strips. Interface fortelemetry control equipment isstandard, too.

Every transmitter also includesVSWR protection, automatic poweroutput control, AFC status indica-tion, solid-state timing diode logicand relays, tuning controls withcounter indicators, multimeterreadout on secondary operatingparameters and front panel circuitbreakers and fusing.The Quality You Can Depend On -Anywhere in the World.

Your broadcasting requirementsneed the simplicity and stabilityof grounded grid and one tubedesign -the best of both engineer-ing worlds in a new FM transmitter.And, you should investigate theadvantages of flexibility and cost -savings that come with the exclu-sive Elcom/Bauer ferrite combining.A comprehensive two-year war-ranty and in-depth engineering,available on a 24 hour basis, areyour further guqrantee that Elcom/Bauer can and will respond to themost stringent requirements foryour facility.

A customer list is availableupon request. We invite your tech-nical evaluation of new FM trans-mitters that broadcast professionalsare calling: "The Heritage Of TheFuture"

THE HERITAGE OF THE FUTUREElcom/Bauer Broadcast Products6199 Warehouse WaySacramento, California 95826Tel: (916) 381-3750 Telex: 377-331

© Elcom/Bauer. 198 2

ALL NEW, tookworse-thee

idnbdxu

ls\t/Inclidl:lo1160-

WITHOVER EASY

-and made it even more versatile. Wegave it Over Easy® so you can choose

soft knee or hardknee compression

TOO.at the touch of a button. We've also madeit strappable for dual channel compression.

$ 420 Ac odmd dr eds suia lo LEDn mtbeet Infinityvision fo+r aTM

Jensen output transformer. And, we've put it all into anew slim -line rack mount package with phone jack andbarrier strip connectors. Voila! The new Model 160X.See your dbx Pro dealer, or write for information.*Manufacturer's suggested retail price.

Model 160X Compressor/Limiter

dbx, Incorporated, Professional Products Division,71 Chapel St., Newton, Mass. 02195 U.S.A.Tel. (617) 964-3210, Telex: 92-2522. Distributed inCanada by BSR (Canada) Ltd., Rexdale, Ontario. dbx

HIGH PERFORMANCELOW POWER FM

CL- MEMI=INIMORIO

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IPower levels from 10 watts to 500 watts -500 watt transmitter shown.

Commercial or educational, mono or stereo-evenSCA! QEI low power transmitters give you the highestperformance in their class. They're 100% solid statefor reliability, synthesized for versatility and fullyprotected against high VSWR for peace of mind.Call or write for details today.

QEI Corporation Rt. 73. Kresson, NJ 08053609 767-8052


QEI

reliable monochrome display. Withhorizontal resolution rated in excessof 700 lines, linearity errors are held toless than 2%. The looping input in-cludes an internal terminating switch.Dc restoration may be selected, aswith all Hitachi black -and -whitemonitors.


IKEGAMI ELECTRONICS (USA)Series 9

A black -matrix screen displays highcontrast pictures on either a 14- or20 -inch screen in the series 9 colormonitors. Close -spaced phosphor dotsresult in 600 -line resolution. Switch -able comb filtering preserves defini-tion, with I/Q demodulation used foraccurate color reproduction.Series 8

Three CRT sizes, 14-, 20- and25 -inch, are available in series 8. De-signed for professional application intelevision, the modular approachreduces maintenance time. NTSC in-puts are standard with optional RGBprovisions. Pulse cross and underscanare standard. For rack -mounting,specify "R," with 14- and 20 -inchmodels.Series RH

The TM14-2RHA and TM20-8RHprovide video bandwidths to 8MHzfor improved high resolution. Combfiltering, pulse cross, underscan andremote control capable models mayalso include optional RGB inputs, op-tional NTSC/RGB switching or R-Y/B-Y outputs for a vector display (in the14 -inch TM14-2RHA only).Series 3

The series 3 monitors include 9- and14 -inch units with modular elec-tronics. Either may be obtained incabinet or 19 -inch rack -mounting con -fig ur ations. H and V delays,underscan switching and operationwith EIA or CCIR scan standards arestandard features.


JVC CORPORATIONTM-14PSN

The unique circuitry of the TM-14PSN allows manual selection ofNTSC-3.58, NTSC-4.43, PAL orSECAM (CCIR/French), as well asautomatic selection of the properstandard. Two UHF/phono connec-tors offer A and B line inputs alongwith an 8 -pin EIAJ connector for VCRinput/output. A tuner is required foroff -air monitoring.C-2082UM

Electronic soft -touch controlsregulate volume, tone and speakerbalance of the C-2082UM stereoreceiver/monitor. A, B and VTR videoinputs may be shown on the 19 -inchCRT with 330 lines color resolution inmonitor mode and 350 lines in RFmode. Dual 5W audio amplifiers and


Oft

No -Cut Editing with The Lexicon Model 1200:saves time, saves reshooting, preserves program integrity Compress takes that run too long Compress commercials to add tags Compress syndicatea shows to add

commercials Meet network/satellite time constraints Streamline post production editing

Circle (36) on Replr Card

e _exicon Model 120:i audio time compressor/expander automatically controls the speed of record/playback equipment and preserves broadcast quality audio- for film, disc, tape and video tape. To use: enter actualplay time, desired play time, press "GO". It's that simple.

60 Turner StreetWaltham, MA 02154(617) 891-6790TELEX 923468

Export Gotham Export Corporation, New York, NY 10014

speakers present stereo audio. Elec-tronic tuning is included in automaticor manual V/U channel searchingwith memory.TM-41AU

The 5 -inch color TM -41 colormonitor features portability withpowering from an internal batterypack or from household current.Weighing only 8.4 pounds, the port-able monitor may be used in thestudio or in the field with equally highpicture quality from an in -line black -stripe picture tube. A built-in speakeris offered for audio monitoring alongwith video.


LENCOPCM-514

NTSC and RGB signals may be usedwith the PCM-514 series. CRT choicesinclude 0.61 slot, 0.41 dot and 0.31dot mask PIL displays. These 14 -inchmonitors include comb filtering, bluegun only, pulse cross and underscanfeatures. The PCM-514-3 (0.31 dotmask) model is considered highresolution. All are designed forevaluation applications.PCM-519

Using a 19 -inch CRT, the PCM-519series offers the same basic features asthe 514 group with a larger picturearea. Request a -6 for 0.61 slot mask,

-4 for 0.41 dot mask or a -3 for the0.31 dot mask high resolution CRT foreither NTSC or RGB signal evaluationapplications.PCM-523

All features of the PCM-523 areidentical to the 519 series with the ex-ception of the CRT size. The PCM-523uses a 23 -inch tube and is available on-ly with the 0.61 slotmask PIL CRT.PCM-520

The 520 series of monitors uses RGBsignals only. Both 20- and 22 -inchtubes are available in the 0.61 slot,0.41 dot and 0.31 dot mask PIL CRTcategories. The scan by resolution for-mat produces a 512x483 elementdisplay with up to 80 characters onthe screen for text applications.


PANASONIC INDUSTRIALCOMPANYVideo Systems DivisionCT -2000M

The CT -2000M is a 4 -system colormonitor for PAL, SECAM, NTSC-3.58and NTSC-4.43. The switchover isautomatic and manual. The ac autofeature adjusts the monitor to thepower source, from 80 to 290V auto-matically. A full array of inputs andoutputs with loop -through capabilitypermits use in almost any applicationwhen a 19 -inch CRT is useful.

CT -1920MThe 19 -inch Quintrix II in -line CRT

delivers 300 -line resolution for finerpicture detail. Comb filtering im-proves resolution and color definitionby reducing color noise. The monitoris equipped with BNC connectors forvideo input and output, an 8 -pin VTRconnector and RCA -type audio con-nectors. It is commercial UL listed.CT-1350MG

Specifically engineered to satisfy in-dustrial, professional and educationaldemands, the 13 -inch CT-1350MGcolor monitor fits into computer aswell as VTRNCR applications. NTSCcomposite and RGB video inputs areprovided for the professional studio orRGB computer applications.WV -5360

The deluxe WV -5360 monochromemonitor in underscan can display theentire image from the camera or VTR,including edges normally cut off bystandard monitors. Pulse cross shiftsthe picture both horizontally and ver-tically to display the blanking signals,revealing out -of -sync edits in post -production.


PHILIPS PYE TVT LTD.LDH 6200 series

Referred to as a Grade 2 monitor,the LDH 6200 series uses a 14 -inch in -

OUR SYNC GENERATORS HAVEMULTIPLE OUTPUTS

TOTALLY ELIMINATING OR REDUCING THE NEED FOR DISTRIBUTION AMPLIFIERS

Four of the six black burst outputs on the 6006B are phase adjustable from the front panel. This enables cameras to bephased from the EQUIPMENT RACK with a clear view of the scopes and monitors. Both horizontal and subcarrierphases are adjustable. If you have ever done system timing by adjusting phase at camera heads, you will know how muchof a convenience feature this is.

If your cameras require drives instead of black burst, there is the standard 6006A In the same family, the 6006C, hascolor bars and an audio tone generator. The 6006 has no genlock.

All four generators save you a lot of distribution amplifiers. They all have:

GENLOCK (EXCEPT 6006) FIVE SUBCARRIER OUTPUTS, FOUR PHASE ADJUSTABLE FIVE H. DRIVE OR SYNC OUTPUTS, FOUR ADJUSTABLE FIVE VERTICAL DRIVE OUTPUTS TWO OUTPUTS EACH FOR THE OTHER DRIVES TWO BLACK BURST OUTPUTS

Prices: 6006 $1,250. 6006A $1,390. 6006B $1,990. 6006C $1,990.

CROSSPOINT LATCH CORP.

95 Progress Street Union, N.J. 07083 (201) 688-1510 Telex 181160



RACK -PACK, The case thatcovers the elections

and never loses a vote.r

I t-4

The camp 3 gn trail is a rough road.And it's even rougher for sensitive

broadcast ec ipment.That's why a lot of pros who cover

political events depend on Rack -Packto cover their gear.

Rack -Pack soaks up t e bumpsand knocks a Dng the way like atough -skinned politician. Recessedribs allow its outer shell to compressslightly on impact much like anaccordian.

And after the brunt of the blow hasbeen absorbed, elastometric shockmounts on the inside handle the

remain vibratioBut getting yot. r equipment there

in one pieJe is just half the story.Once an location. Rack -Packs nestto form modular v.ork stations. Bothfront arid back are removeable foroperation and maintenance. Andsince the Rack -Pack design allowspre -wiring, you can have your sys-tem operatirg b&ore some crewshave theirs unpacked.

What's more, Rack -Packs arecompletely water tight. And no othermake lets you replace hardware soeasily :n the field.

In short, nothing we know of atany price is bette- for storing, ship-ping and operating remote broad-cast gear. And sizes are availablefor al k nds.

Sc., call us today for completedetais. Thermodyie International,Ltd., 20850 S. Alameda, LongBeach, CA 90810. (213) 603-1976

TTHERIVIODYNEINTERNATIONAL LTDSuperiority in every case.


line "Hi-Bri" self -converging CRT. Pig-mented phosphors increase bright-ness by 70% and contrast by 20% overconventional tubes. Two encoded in-puts. NTSC, PAL or SECAM and RGBsignals may be displayed separately orwith an A/B split screen. Pulse crossand underscan are available.


ROHDE & SCHWARZ SALESCOMPANY (Barco)CTVM 3 series

The two CRT sizes of the CTVM 3series are 14 and 20 inches. Both maybe ordered with a delta -gun shadowmask or a slot mask. Also, EBU orAmerican Standard phosphors maybe requested. Decoders are availablefor NTSC, PAL B/M/N and SECAM Hand V standards. H and V delay, split-screen and notch filtering are provid-ed on -A versions.TVM 3 series

Screen sizes of the TVM 3 series ofmonochrome monitors offer 14- and20 -inch displays. Either of two com-posite inputs may be selected into avideo bandwidth circuit greater than10MHz. Notch filtering for NTSC,PAL or SECAM color subcarriers areswitched in from the front panel. AFCconstant switching, pulse cross andremote control capability are featured.


The Ross RVS 514 videoproduction switcher has madequite a name for itself in TVstations, production housesand in editing suites acrossthe U.S.A., Canada andaround the world.

In Australia alone, ten 514'sare being used to help providecoverage of this October'sBritish CommonwealthGames.

The reasons for success areabvious -* simple operation* compact size* affordable price- and the tremendousproduction capability of theRoss MLE Multi -Level Effectsunit.

SHARP ELECTRONICSCORPORATIONXR-3019

A 19 -inch Linytron Plus CRT is usedin the XR-3019 receiver/monitor. TheACS -5 auto color system, autodegaussing, rapid -on and a long -lifetuner offer standard TV viewing ofany U /V channel. UHF and phonoconnectors or an 8 -pin VTR connectorallow monitoring functions. Bothvideo and audio outputs are availableto drive other monitors or a recorder.XR-3013

The jet-black stripe Linytron Plus13 -inch tube displays RF or videosignals. From the tuner, from UHFand phono connectors or from the8 -pin VTR connector, signals arerouted through the ACS -5 auto colorsystem. Separate A/V outputs or the8 -pin system may drive othermonitors or a video recorder.


SONY BROADCASTPRODUCTS COMPANYBVM-1900

The BVM-1900 broadcast evaluationcolor monitor provides NTSC andRGB signal observation on a 19 -inchCRT. Comb filtering increases picturecrispness to a suggested resolution of900 lines. A full range of functions in -

TheRoss Multi -Effects system andTransition Preview offerproduction capability usuallyfound only in larger switchers.The compact and easy -to -operatelayout of the 514 control panelmakes it a favourite withoperators. The addition ofoptions such as quad split,rotary and matrix wipes, autotransitions, analog keyborders and interfaces foreditors and digital effectsunits allows the 514 to betailored to any situation. TheRoss Scene Store offers theadded dimension of memory ata reasonable price.

cludes pulse cross and underscanselections.BVM-4050

Portability is offered in theBVM-4050 color monitor. The smallsize and powering permits use in fieldconfidence applications. A highdefinition 3.7 -inch Trinitron displayspulse cross and blue only functionsfor setup and observation of noise andvideo signals.BVM-1201

The 12 -inch Trinitron of theBVM-1201 offers a horizontal resolu-tion of 600 TV lines at center, typical-ly. NTSC and RGB inputs are stand-ard with controls for variable AFCtime constant, pulse cross and remotecontrol functions. Aperture adjust-ment allows an 8dB boost at 4.5MHz.


TEKTRONIX650HR series

A 12 -inch high resolution Trinitronwith 50% more phosphor stripes isused in the 650HR monitors for im-proved resolution. The 1.2MHzdecoder bandwidth and variable aper-ture correction aid picture sharpness.Two video channels, each with in-dividual external sync, are standard.Decoder outputs offer R -Y and B -Y (orU and V) signals for an X -Y monitorfrom RGB, NTSC and PAL units.

Let us tell you more aboutthe Ross 514 or the othermembers of the Ross family ofproduction switchers.

Ross Video Ltd.9 Plaza Drive, P.O. Box 220Iroquois, Ontario, CanadaPhone 613-652-4889

Ross Video Inc.P.O. Box 6700Ogdensburg, New York 13669

ROSS



16 TRACKS OFNUMBER ONE

SOUND

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MICROPROCESSORREMOTE CoNTRet

I LILLEE EE Et

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MaL P AUDIS Sc

MRC-1 SMART TERMINALS AT

CONTROL AND REMOTE SITES

SIMULTANEOUS DISPLAY OF32 STATUS INPUTS

KEYBOARD CALIBRATION OFTELEMETRY

Since its introduction in 1978, theMRC-1 has become the leadingmicroprocessor based remote con-trol system in the broadcast industry.The compact modular designdelivers proven reliability andoutstanding versatility, allowing upto 64 command outputs, 32 status,and 32 telemetry inputs, at each ofup to nine remote terminals.

User -tailored system set-up of theMRC-1 assures each broadcaster offilling his exact command, status,and telemetry requirements. Tele-metry channels may be keyboardcalibrated for linear, indirect poweror direct power scaling. Upper andlower telemetry limits may be setwith automatic muting if desired. Allstatus inputs from any site can bedisplayed simultaneously on a set of32 LEDs at the control terminal.Command line outputs may beassigned to function as the raise or MULTIPLE REMOTE SITE

CAPABILITY

EACH SITE EXPANDABLE TO:64 COMMAND LINES

32 STATUS CHANNELS

32 TELEMETRY CHANNELS

lower output of any specified tele-metry channel. In short, the broad-caster customizes his system to hisplant.

To further enhance the flexibilityand convenience of the MRC-1 ,several options are available. Themultiple direct command optionprovides 10 pre -selected commandfunctions for quick control of keyparameters at any site. In case of anextended shutdown, the MoseleyMemory option stores data for up toten years. Optionally available auto-matic loggers print a record of statusand telemetry operations at timeintervals selected by the user. TheCRT option duplicates all the func-tions of the control terminal and dis-plays all 32 channels of status andtelemetry data at one time from anysite.

With over 500 units in the field, theMRC-1 has proven itself to be thepreferred remote control system forradio, television, earth satellite sta-tions, and a multitude of supervisorycontrol requirements.

For further information, pleasecontact our Marketing Department

V=111.1111MO

MOSELEY ASSOCIATES, INC.A Flow General Company . Santa Barbara Research Park

111 Castilian Drive . . . Goleta, California 93117(805) 968-9621 . Telex: 658-448 . Cable: MOSELEY



690SRA 19 -inch high resolution delta -gun,

dot -shadow mask CRT with a 0.31mmdot pitch is standard for criticalevaluation applications in the 690SRmonitor. Scan delay, pulse cross andunderscan features are included witha design concept for extra stability.NTSC or RGB interfaces are availableas well as medium resolution CRT.


VIDEOTEKRGBNM series

CRTs for the RGB/VM19 andRGB/VM25 are 19- and 25 -inch dis-plays. Both RGB and NTSC inputsare allowed with 350 -line resolution.Standard features include comb filter-ing, switchable underscan, A/B in-puts, external sync and blue gun only.Video may be derived from a VTR onan 8 -pin plug as well, and sync can bepositive or negative.Studio 12

The 12 -inch Trinitron display in theStudio 12 (NTSC) and Studio 12/P(PAL) provides a critical evaluationpicture. In addition to pulse cross andunderscan functions, the A/B inputsmay be down in an A -B split screenand A -B mix format for signal match-ing applications. The AFC time con-stant is selectable.VM-26P

On the 26 -inch Trinitron of the VM-26P professional color monitor resolu-tion is improved by the use of velocitybeam modulation. A sharpness con-trol also increases available picturedetail. Ideal for newsroom, board-room and classroom uses, the largescreen monitor may also find applica-tion in engineering and is availablewith optional pulse cross andunderscan features.


WORLD VIDEOCDM 13

Available in either a cabinet or openchassis configuration, the CDM 13uses a 13 -inch CRT for RGB colordisplays of an 80x24 character resolu-tion. When ordered, the unit may berequested to accept analog, TTL andTTL with intensity inputs. Sync isselectable from an external input orfrom the green channel input.RV 1301

The RV 1301 is one of a series of col-or receiver/monitors available from5 -to 26 -inch. All are fully power lineisolated with isolation transformers.Demod outputs, an 8 -pin VTR connec-tor and E -to -E features are included.Available options include underscan,pulse cross and a built-in color barand tone generator.


I:

SIX REASONS WHYMOTOROLA'S AM STEREO

SYSTEM IS GETTINGSUCH GOOD RECEPTION.

Motorola's C-QUAM R (Compatible Quadrature) AMStereo System is attracting the attention of broadcastingexecutives.

Probably because no other AM Stereo system has allthat the C-QUAM system offers:

1) Full modulation capability over the whole range theFCC allows (from +125% to -100%).

2) No monaural distortion increase.3) Full coverage in monaural and stereo.4) Causes no clicks or pops.5) Full frequency response.6) Lease plan.

These and other C-QUAM system features are completelyexplained in our free brochure "AM Stereo. The Answer tothe Marketplace Decision" Send in the coupon for your owncopy. Or call Dick Harasek, Motorola, Inc. PO. Box 95334,Schaumburg, Illinois 60195 (312) 576-3591.

Dick HarasekManager, Advanced Technology ProductsMotorola, Inc. P O. Box 95334Schaumburg, Illinois 60195Please send me a copy of your freebrochure: "AM Stereo. The Answer tothe Marketplace Decision"

MOTOROLA A World Leader in El- nicsC 1982 Motorola Inc Motorola, C-QUAM, and11 are remsterec trademarks of Motorola, Inc


J u y 1982 Broadcast Engineering 49

/Michael Jackson has intery eked courrtlesscelebrities in h s ca eer. During his first weekbroadcasting nat o ally (May 3), he interview-ed many peep e including performers JaneFonda and Steve Allen. /

,, !(...,IF , \`

OOs .. \

look atKABC/ABC

By Art Sternan. manager, radio engineering operations, KABC/KLOS, Los Angeles, CA

There is an air of excitement that pervades the studios of KABC in Los Angeles. II starts with the lively infec-tiousness of Ken Minyard and Bob Arthur during their 5-9 a.m. show. The constant procession of nationally recognizedcelebrities visiting with veteran radio journalist Michael Jackson arouses the staff's cu osity. And Dr. Toni Grant, theperceptive radio psychologist, brings another dimersion to the studios as she discusses personal problems via call-ins. In the late afternoon, the focus changes to sports: 3ud Furillo's Sportstalk s followed by Dodger baseball or, in theoff-season, the Carole Hemingway show. Afterwards, Ira Fistell, the dean of -adio conversationalists, commences a3 -hour stint rangirg from trivia to the mundane. Then it's time for Ray Briem, whose micnight-to-5 a.m. program roundsout a 24 -hour span of humor, insight and action.

To the listeners KABC is a multifaceted magazine of entertainment, sports, disci.ssiorn and news. To the staff, it is apulsating entity that absorbs their thoughts and draws them into each program.

Behind the scenes, the author, a 21 -year KABC veteran, and Rex Newcombe, assistant chief engineer, are responsi-ble for maintaining the station at peak operating efficiency. The author recounts here some of the moves that havemade KABC one of the nation's leading staticns.


We believe that KABC is one of themost successful radio stations in theUnited States. We are not bragging.We are proud of that fact, but it wasn'talways that way.

In 1960, we were floundering with arock format. The ratings were low andsomething had to be done. ABC decid-ed to send the then vice president andgeneral manager of WABC, NewYork. Ben Hoberman, to Los Angelesto try out a new format. Hobermandecided to go talk radio 24 hours aday. At that time we were playingelectrical transcriptions on 16-i -ichturntables. We installed cartridgemachines and a hybrid telephanesystem and away we went.

The original talk show hosts werepolitically oriented, both conservativeand liberal. They would argue withthe listeners and sometimes some ofour more radical hosts, such as JoePine, would tell them they were stupidand then hang up. On Saturdays, for achange of pace, we would havecomedian -type hosts, Dick Whit-tington and others, who would make ajoke of everythi ag, make funny longdistance calls and anything else thatwould entertain listeners.

This was followed by a generalbenign ear where we had talk showhosts (such as Superfan) whorepresented the fans at baseball

Existing building

games, etc. He did not sit in the pressbox with other reporters. Instead, hesat in the stands with the fans, andrepresented them. We had anothertalk show host, Bill Balance. whospoke to the ladies about their mar-riages and love life.

We then followed with the presentformat, which is informative andeducational. A listener who was tunedto KABC continuously could receive awell-rounded, broad education aboutworld affairs, sex and sports. For ex-ample, talk host Michael Jackson hashad as in -studio guests hundreds ofstars of motion pictures, sports andpolitics. A listener to his show alonewould receive a broad education andalso be entertained. Jackson is fol-lowed by Dr. Toni Grant, a psycholo-gist, who attempts to solve thelistener's personal problems in thetime allowed.

The Ken and Bob Show is the morn-ing drive program that is aired from 5to 9a.m. daily. They believe that be-cause most of the news is bad, theyshould spoon-feed the listener hardnews in between features such as LustNews and report way-out news items.

We also have 5kHz equalized broad-cast circuits from various talent'shomes so that they may feed theirreports, live and in good quality. Theyreport the financial news, commen-

tary on p ngs, andlifestyle. For promotional stunts, wehave broadcast live from the RoseParade and other major events, locallyand from around the globe.

There is generally a humorous gim-mick in each place. For example, atthe Rose Parade, staff members wereset up beyond the parade route. AtHarmony, CA, the town was one blocklong. At the miasion at San JuanCapistrano, where everyonepublicizes the swallows returning,KABC was there when the swallowswere leaving. When they wert to Lon-don to throw a shower party for LadyDiana, she didn't attend. The latestescapade is broadcasting from Dublin,Ireland, during the St. Patrick's Dayweek.

We have many more talented talkshow hosts, too numerous to mentionat this writing. la fact, at times wehave famous people as guest talkhosts. The listener gets a new insightinto the thoughts. views end articula-tions of their favorite stars. We recent-ly had Governor Brown of California,as guest host, and people who wouldnot normally have had an opportunityto talk to him could do so on the air.

Also, in 1974. KABC agreed tobroadcast the Dodgers baseballgames. This, in connection with theother popular programming, made


This flow plan shows the new studios,control rooms, screening and announcerrooms, Telco area and master controlfacilities The Green Room provides acomfortab e, elegant waiting room forguests, -nany of whom are stars anddignitaries.

KABC the number one station in thearea. In 1979, George Green becamethe vice president and generalmanager of KABC, taking the reignsfrom Ben Hoberman and we havebeen going full speed ahead sincethen.

Past, present and futureOur present broadcasting site in Los

Angeles en LaCienega Boulevard wasthe original transmitter location ofKECA (Earl C. Anthony). When ABCpurchased the station, the call letterswere changed to KABC. The studiosat that time were the old audience par-ticipation studios at Vine Street inHollywoed.

In 1960, the decision was made tomove the operation to the transmittingsite at LaCienega. This was a crowdedsituation, because the ABC Radio Net-work, KABC studios and the KABCtransmitter were all located in onesmall area. What was then KABC-FMwas being simulcast with KABC, andthe FM s:atior had no studios.

In 196', KABC expanded to new,larger quarters at the north end of theexisting building and installed acustom Gates system. We had net-work studios, control rooms andnewsroom, KABC studios, recordingroom, control rooms and newsroom.At that time, it was decided to stop

simulcasting the FM station, whosecall letters had been changec toKLOS. We installed a Schafer automa-tion system and played the love for-mat. At that time, we were feeding 22newscasts a day to the ABC RadioNetwork, as we were the westerndistribution and feed point.

We later added offices for KLOS atthe south end of the building, therebymaking the total 7adio building area22,000 square fed. (I would like tomention that the preceding changes,as well as the Following designs andinstallations of equipment, wentsmoothly with the expertise of RexNewcombe, assistant chief engineerfor KABC and KLOS.)

Program/facility expansionIn addition tc sending an engineer

to all Dodger games and broadcastingthem via satellite and simulcastinglive and taped satellite stereo showson our FM station, we have expandedinto a new area. The Radio Enter-prises division of ABC began to broad-cast a TALKRADIO syndicated showvia satellite to those stations wishingto purchase the service.

To accommodate this syndicatedprogramming, we have added 2500square feet of Audios increasing thetotal plant area to 24,500 square feet.The new addition includes a 30 -footstudio, a 20 --root studio, controlrooms, screeners' and annourcers'booths, a central control and a greenroom for guests. One area is used forTALKRADIO syndication, and theother area is used for KABC. We nowplan to rebuild the existing broad-casting areas.

We made the decision to go withPacific Recorders equipment becausetheir president, Jack Williams,impressed us as being an exceptional-ly bright engineer with the abiLty tosolve most problems in a straightfor-ward, logical manner. He was willingto work with us in building custombroadcasting tables and in otherspecialized work. His consoles incor-porate the latest state-of-the-art cir-cuitry, and he willingly consideredour special requirements such as theuse of mix -minus buses needed for ourmany satellite talk shows. We aTe us-ing the Pacific BMX -26 Series II con-soles, Technics MKII turntables, MCIreel-to-reel tape recorders, Eventidesolid-state delay units, Crown poweramplifiers, JBL audio monitors andTomcat cartridge machines. Thegoodies include digital timers,Electro-Voice RE -20 microphones andcustom intercoms.

The on -the -air telephone system is acustom 4 -wire hybrid system. It has40 -line capability: 20 for KABC and 20for TALKRADIO syndication. TheKABC lines include Los Angelesnumbers with Orange County. San

Satelliteradionetworkis born

In deciding to become all -talkwith open lines and call -ins, KABCnot only revolutionized its originalformat, but also created a newconcept: live satellite broad-cast wng.

Mike Hauptman, president, ABCRadio Enterprises, appointed Den-nis Feely to be director of RadioEngineering Operations for the na-tionwide TALKRADIO, with officesin New York. In preparation, ArtSterman, Rex Newcombe and theKABC engineers were ready forthat challenge in Los Angeles. TheNew York -based ABC group washeaded by John Hidle, vice presi-dent of Radio Engineering Opera-tions; John Gable, director ofaudio design; John Studwell,director of construction and plantservices; and Studwell's assis-tant, Bill Murphy.

The decision to take the TALK -RADIO format national was anoutgrowth of KABC's local suc-cess. However, the concept to golive with such a wide variety ofprograms seemed impossible. Amyrad of questions were raisedfor the programmers and tech-nicians. How would they handlecalls from the East Coast? Whatabout the time differentials? Whatabout signal delays? Would therebe feedback?

Technically it seemed overlycomplex, but Radio Enterprisesand KABC were capable of han-dlirug the problems because thelong-range operational plan andcapital budget had foreseen thestation's growth. Sterman wasready for live national program-ming as KABC's projections in-cluded the construction of twonew studios, control rooms, andthe purchase of the latest state-of-the-art equipment. With thebudget allocation approved, Ster-man and his team embarked on aconstruction program that wouldbring the KABC creative talents in-to radios across the country.

Thus, the satellite radio net-work was born.

In conjunction with Wold Com-munications, KABC originatesand uplinks programs from itsnew studios to a Weststar IIItransponder, and then downlinksthem to target markets. The twofull-time 15kHz single carrierchannels are being implementedimmediately, and a third held inreserve for future use.


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Every rig s afthe s 'gerthe talent control boar I aprissts of tietelephone, computer 3:.sterr and nework signalir g system.. The oi-air personalities have easy viaiving of en]neers, announcer, ixogfam cc arc inatcrsand guests.

Lou Cook, KABC radio announcer, ispositioned in We announcer's booththat overlooks the studio. Variouscontrols inc Lde digital clock, down -timer, cartridge timer and intercomsystem, which allnws communica-tion to mary areas within the station.

Photos: Andrew Vogel

BC's networ< studia C, housed withinABC TALKRA.110 in Los Angeles, is

highlighted by the large broadcast tablethat includes a low profile console andCRT viewer. In the rear, a sofa and chairswere installed to provide an alternate in-formal broadcast area so that talentmay interview their guests in a relaxed,at-home atrrospt ere Dr. Toni Grant isseen preparing for the broadcast.

Cecilia Hugo, engineer, is seer at the network control room, which features a PacificRecorders Console, Ton: at cartridge machine, input switcher and a birds -eye viewof Studio C from which Dr Toni Grant is broadcasting.



A CETEC CPTV ANTENNA TOPSTHE MU'S TALLEST!

When ABC's Chicago superstation WLS-TV made the decision to update their CPTVantenna atop the Sears Tower, they choseCETEC.

Working with Broadcast Systems, Inc.(the Dallas based exclusive sales engineer-ing firm for Cetec's CPTV antennas) a CETECSpiral circularly polarized design wasselected to be the main antenna that willdeliver improved coverage over the entireWLS-TV market and particularly, extendedquality and coverage to the Eastern shore ofLake Michigan.

The CETEC Spiral CPTV antenna waspatented in 1975 by Dr. Raymond DuHamelafter three years of extensive developmentalresearch at our factory and antenna range inSacramento, California. The WLS Spiral CPutilizes a series of tapered, spiral -wrappedradiators which yield extremely uniformcoverage as well as excellent axial ratio.And this is precisely what ABC station WLSneeded. They've been recognized by thebroadcast industry as the pioneers in CPbroadcasting since their first regular sched-ule of full-time CP transmission in 1974.Cetec Antennas too, has been pioneeringright along with ABC.

Once testing was completed on the WLSSpiral, it was transported fully -assembled toChicago and then placed on the world'stallest building-by helicopter.

Installed on February 20, 1982,our delivery was right on schedule with ourclient's requirements. This delivery made The CETEC CPTV Spiral

WLS-TV the fifth forward -thinking broad- Antenna -radiators shownwith full -panel radomescaster who has recognized Cetec's substan- removed.

tial lead in CP antenna engineering.Our track record is more than two

decades of critical performance and pro-gress in broadcast transmission. Whetheryour needs are in Radio or T.V., advancedCP or conventional design, you can betotally confident that antennas which areengineered, critically tested and ofteninstalled by CETEC will give your stationthe edge in performance and coverage.

Contact us now for full technical information.If your requirement is CPTV, then contact ourexclusive engineering sales representatives:Broadcast Systems, Inc.8222 Jamestown DriveAustin, 'Ibxas 78758(800) 531-5232

eC etec AntennasThe Edge In Coverage!

6939 Power Inn Road, Sacramento, California 95828(916) 383-1177 Thlex: 377321

111

Dr. Raymond Dul-lamel,inventor of the CP Spiraland patent holder on theexclusive CETEC CPTVantenna.

© 1982 CETEC


Julw 1982 Broadcast Engineering 55

Still The Best InvestmentIn A Professional

Two Channel Tape Machine.The Otari MX -5050B

There's a very simple, straightfor-ward reason the MX -5050B has be-come the world's best-selling profes-sional tape recorder: value. If youwere to ignore all of the productionfeatures, dismiss the six year trackrecord for unsurpassed reliability, youwould still discover that the "B" is thebest performing machine for yourmoney. When you shop around you'llfind out that it's easy to spend a littleless or a lot more, but very difficult tojustify to yourself that you are gettingmore. When you compare othermachines, spec' by spec', you'll be-gin to see why there's more value inpuffing your money into an Otari.Spec's of course, don't tell the wholestory. But, it's a damn good place tostart your serious comparisons.

To experience the full potential,and thus the value of any productyou purposely put it to the test. After afew hours in the studio or on location,you can become painfully aware ofthe differences between a professio-nal machine and those with a Hi -Flheritage. Because Otari's only busi-ness is to serve the dedicated audioprofessional, you won't find cosmeticfacelifts every couple of years; or,dredged -up product from anotherera that's labeled "Pro." At Otari weimprove each product by subtle en-gineering refinements that make thebasic product that much better-without fanfare and expensive modelchanges that you end up paying for.And the "B" is the embodiment of thisphilosophy. It's been around for threeyears (5050 Series, 6 years) and weplan you'll keep it around a lotlonger. If you're a knowledgeableaudio person who already owns anOtari you'll know what we're talkingabout. If you're not, then it is wellworth your time to review the Perfor-mance and Feature facts we've

detailed in this ad. If you're in themarket for a fully professional, super -reliable two -track, the time youspend to acquaint yourself with the"B" just might mean the differencebetween spending your money on amachine that will do for now-ordeciding to make the investment in abasic creative tool that will pay youback handsomely in the years tocome.

THE FACTS: PERFORMANCE.

Overall Signal -to -Noise: 66 dBunweighted @ 520 nWb/m, 30 Hzto 18kHz.

Dynamic Range: 72 dB unweighted:30 Hz to 18 kHz.

Headroom: +24 dB. Maximumoutput: +28 dBm.

Overall Frequency Response: 30 Hzto 22 kHz ±2.0 dB (15 ips @ +4dBm).

Playback Frequency Response: 31.5Hz to 20 kHz ±-2.0 dB (15 ips @ +4dBm).

Distortion: less than 0.7%, 1 kHz @250 nWb/m.

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Three switchable speed pairs: 15/71/2or 71/2/33/4 ips (automaticequalization).

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varispeed control.Selective reproduce for overdubbing.Four heads: 1/2 track erase, record,

reproduce, 1/4 track reproduceplug-in assembly.

Noise -free punch-in/outs; transportremote (optional).

Built-in test oscillator.Front panel adjustable bias and

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precision aligned; and indexedsplicing block.

Zero memory return.101/2" reel capacity,' XLR connectors.Large, illuminated V. U. meters with

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THE FACTS: PRICE.

$2,295.00 Suggested Professional Net.

Your nearest Otari qualified profes-sional audio dealer has The NewWorkhorse in stock. Check-out foryourself why you should place yourmoney on the MX -5050B. If your dealershows you anything but an Otari, tellhim, "No thanks, I'm only interested inmaking a sound investment."

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© Otari Corp 1981



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Dr. Irene Kassorla is a leadingpsychologist bes:-known for her recentbook, Nice Girls Do. She is broadcast na-tionally from 9-11 a.m. PST.

Michael Jackson joined KABCTALKRADID in 1966. He is heard na-tionally from 11 a.m.-1 p.m. PST.

Some of the talent

Dr. Toni Grant pioneered cc -alpsychology seven years ago on KABCTAL <RADIO. She is broadcast iat cnal-ly from 1-4 p.m. PST.

Owes Spann has been heard locally onKABC's sis:er statior, <GO -AM SanFrancisco, for 19 years. He i3 ''head na-tionally from 7-9 a.m. PST.

Custom hybridphone system

Author Art Sterman readily ad-mits that the KABC custom hybridphone system is the most excitingtechnical achievement in his newoperation. But he also notes thatit is beyond the budget of moststations. Custom -designed, it .s a4 -wire system that lets KABC con-ference at full level at least fourparties simultaneously, and many

more could be accommodatedwith a slight elevation in level.

Coupled with technical achieve-ment is KABC's hard-working airtalent that thrives on challenge.The combination has spelled outgood ratings and overall success.

All this is achieved with a 5kWtransmitter in a 50kW competitiveenvironment.


Fernando Valley, South Bay and othernumbers, so that the greatest practicalnumber of listeners may call us toll -free. The syndication telca lines are800 numbers, so that we may be calledtoll -free by listeners across the UnitedStates.

The syndication area also has acomputer. Calls are answered and thecomputer is operated by a callscreener. The screener inputs thecomputer with information such asthe name of the listener, the age andcity of the caller and the subject. Thisappears on a CRT in the controlrooms and studios. Also, a controlsignal is transmitted to the satellitenetwork that controls various cart-

ridge machines in each contract sta-tion. This means that we can In-dividually control IDs, promos orlocal commercials from Los Angeles.The computer is a customized Applecomputer co ipled with a customizedTorpey clock system.

AcknowledgementsWhen a broadcast studio is remod-

eled and interfaced with old studios,the transmitter transmission line isbuilt over and all conduits are laid inconcrete to meet special cabinetry,there must be expertise and coopera-tion between building contractors,station engineers and the phone corn -

The program coordinator booth,overlooking Studio C, includes an on -the -air telephone system and a com-puter, which provides information suchas name and call origination to the on -airtalent. Michael Setsuda, program coor-dinator, is seen setting up calls for on -airbroadcast.

pany. I want to recognize the exper-tise of the New York ABC BroadcastOperations and Engineering group,including John Hidle and John Gable;John Studwell, director of Construc-tion and Plant Services, with his assis-tant, Bill Murphy, and their staff; andall the contractors and subcontrac-tors. In connection with the telephonesystem, Steve Rowland, director, andCharles Williams, manages cf Cor-porate Special Services; FrancoiseDytrt, Jeff Weddle and C.E. Wood-ward of PT&T; and Jack Williams ofPacific Recorders. All deserve specialrecognition and thanks.

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Elton Rule, president ofABC, confirms ABC'scommitment to the suc-cess of Superadio. Oneach side of the podiumare members of ABCRadio Enterprises andthe Marschalk Companyand DJs for Superadio.

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ABC Radio Enterprises launched asatellite -delivered radio service on Ju-ly 1, 1982. Called Superadio, the ser-vice transmits a total programmingand marketing package to radio sta-tions paying a monthly fee based onmarket size. Designed to improvelocal stations' profitability bygenerating audiences and advertisingrevenues, Superadio should limit sta-tion expenditures and maximize thereturn on expenditures made.

Originating from New York City,Superadio is available 24 hours a day,but stations are encouraged to pro-gram locally where they think this isappropriate. Generally speaking, localorigination will probably occur dur-ing morning and evening drive time.

Targeted to adults from 21 to 49years of age, Superadio featuresmusic, news, nationally produced on -and off -air promotions and advertis-ing support. Off -air promotion,handled by ABC Radio Enterprisesand the Marschalk Company (amember of the Interpublic Advertis-ing Group) creates, produces andplaces customized TV and printadvertising campaigns in eachlicensee's market. ABC Radio Enter-prises provides and coordinates all

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talkBy L Scott Hochberg, president,

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WMCA's new talk studio is an ex-ample of the use of standardtechnology to simplify operation of anall -talk station. Through careful plan-ning and substantial consultation be-tween talent and engineers, WMCA'stalk -show hosts control almost allaspects of their programs with simple,1 -button operations. The electronicstake care of maintaining levels, cy-cling through spot breaks, compen-sating for voice-overs and properlyrouting telephone and talkbacksignals.

WMCA has long been the promi-nent AM talk station in New York Ci-ty. As with many major market sta-tions, WMCA's labor contractsprevented the station's air talent fromdirectly operating studio equipment.Last year, the station and the unionsnegotiated new agreements, allowingWMCA to "go combo," reducing theuse of operating engineers. This leftthe station with a crew ofhost/operators, many of whom hadnot, in recent memory, set their handson a control board, much less tried torun one while attentively interviewingguests and handling phone calls on astation in the nation's number onemarket.

John Shadle, then chief engineer atWMCA, was particularly concernedthat the hosts would not pay attentionto levels, a concern well -understoodby all broadcast engineers. To Shadle,the answer to the level problem wasstraightforward: if the talent will notset levels, then don't give them levelsto set. He proposed custom designinga totally potless console, with all levelscontrolled by a bank of individualcompressors and noise gates, withparameters set to optimize perform-ance for the particular sources being

Circle (53) on Reply Card62 Broadcast Engineering July 1982

CMSrunningshow

controlled. Besides automatically set-ting levels, Shadle's custom consolewould use special logic circuits toreduce manual switching operationsto an absolute minimum.

WMCA makes the most of limited space.Its all -talk custom console automatical-ly controls levels, leaving the operatorfree to run his show. Switching is inter-connected to reduce most operations toa single button.

Custom modificationShadle worked with engineers at

Logitek to convert his block diagramsinto a functional custom console.Logitek modified its Custom AudioSeries console design to accom-modate additional inputs and to incor-porate potless operation and specialswitching circuits. On Shadie's recom-mendation, Logitek used dbx Model903 compressors and Model 904 noisegates to control audio levels. Logitekthen added mic preamp cards to thedbx rack cabinets to allow direct con-nection of studio mics to the com-pressor system. The console was builtwith appropriate input and output im-pedances and levels to interfacedirectly with corresponding sectionsof the dbx equipment.

The system was installed inDecember 1981. WMCA added three

7;3b:26

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Two banks of support equipment con-tain dbx compressors and noise gates tocontrol the levels of audio sources. Thecontrol rack, located in WMCA'sengineering room, also houses thestudio's monitor amplifiers.

ITC 3D cart players and two Telemix*telephone interface units to round outthe studio, which is currently on theair 14 hours daily.

The talk -show hosts operate a con-sole consisting primarily of a bank ofHall -effect lighted push -buttons forswitching audio sources. All sourcesexcept mics can also be fed to a cuesystem, using similar push -buttons.Other controls are limited to a12 -push-button remote selector;speaker selector and volume; head-phone selector and volume; cuevolume; intercom talk push -buttons;and local/on-air push -buttons. A realtime clock and a switch -interfaced up -timer are also mounted on the con-sole. And, as a last minute concessionto operator peace of mind, a singleprogram VU meter is included.

Each of four studio mics are fedthrough individual noise gates andcompressors before going to the audioswitching circuitry in the console.Similarly, a telephone output feedfrom the Telemix units has its owndedicated noise gate and compressor.All nine cart outputs are run in -

'Editor's note: Our information is that the Telemixsystem is one that was developed by MarkDurenberger and Steve Church, manufactured byGregg Labs, and solely marketed/distributed by AlliedBroadcast Equipment.


dividually to the audio switching cir-cuitry, then bused to a single com-pressor. Only one compressor is usedhere, rather than using nine separateunits because it is assumed that allcarts will be recorded at similar levels.Likewise, auxiliary inputs along withthe output of the remote selector arebused after the switching circuitryand share one compressor. The com-pressor outputs feed four separatesubmaster buffers (for mics, phones,carts and auxiliary inputs), which arethen mixed and fed to the master pro-gram amplifier.

The console's switching logic is de-signed to allow 1 -button control ofmultiple audio sources. Turning offthe host's mic or turning on any cartor auxiliary input generates a logicsignal that turns off all four mics. Thisprovides a 1 -button transition to acommercial break or to a remote.Each cart -on push-button on the con-sole starts its associated cart machine,and the cart machine's primary andsecondary cue signals turn the audiochannel off after the spot. If the host'smic is turned on after a cart has beenstarted, the presence of audio from thehost's mic drops the cart level by ap-proximately 12dB to allow the host todo a voice-over or donut spotautomatically.

A custom -designed intercom systemlinks the host, producer and news -person. A small control box in the ad-joining producer's booth lets the pro-ducer speak to either the host or thenewsperson through one ear of thehost's or newsperson's headphones.Then, both can talk back to the pro-ducer through their studiomicrophones without putting theirmics on the air. Appropriate muting isprovided to prevent unwanted inter-com signals from invading a livestudio.

Further modificationsSince installing the console, several

features have been added by WMCA'scurrent chief engineer. He has pulledout a mix -minus feed for the Telemixunits and installed a special talk -backfeature for off -air telephone discus-sions. When the host puts thetelephone feed in cue, the cue bus isfed to one ear of the host's head-phones, and the host's mic is fed downthe telephone line, allowing the hostto talk to phone callers off-mic duringbreaks. WMCA has also mounted theTelemixes into the console to makeoperation of the system even morestraightforward.

WMCA's custom equiqment waskept as simple as possible. The logicuses standard CMOS circuits, ratherthan a microprocessor or program-mable array, to eliminate the need tore -program a PROM for each changein the switching system. All corn-

ponents in the system are standarddistributor parts and bear originalmanufacturers' part numbers, thusavoiding expensive custom com-ponents.

WMCA's combination of automaticlevel controls plus customized logichelps achieve error -free operation. Byrelieving the host of most operatingdetails, WMCA has survived thechange to combo operation withouthurting technical quality of program-ming content. Its particular system isdesigned for the demands of talkradio, but the equipment could be op-

timized to achieve similar results withany format.

From a philosophical point of view,the best equipment in the world is on-ly as good as the performance of theoperators who run it. Thus, the lessthe operators have to do, the better thestation can sound. Along these guide-lines, WMCA's audio signal qualityhas continued to increase without re-quiring a corresponding increase inthe technical capability of itsoperators, an approach to operationalsimplicity that makes sense. I :T:.))))1

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NPR Satellite Operating Support System(SOSS)

PRC-'82Continued from page 16

including contours and demographicsof the area, is less than $500.

NPR/SOSSAn item of special interest to the

public radio engineer is that of NPR'sSOSS (Satellite Operating SupportSystem). The system provides manyunique control and operating featuresrequired at public radio stations.Because the total system is not yet ful-ly implemented, engineers werenaturally curious about the status ofthe system. The first phase of thesystem was implemented on June 1.This allows printed (OACS) mes-sages to be transmitted to stationsat a much faster rate than had beenpreviously possible. The heart of thesystem is a small computer that con-trols a data stream from Washington,DC. The data is routed to the correctarea for control-DACS, software loador tape control. The system allows sta-tions to program control panels torecord particular programs from theNPR satellite system automatically.The control system automaticallyswitches demodulators to the correctsatellite channels, switches the audiocontrol panel to mono or stereodepending upon the program beingtransmitted, and starts the recorder inthe record mode. The system can startcartridges for automatic inserts, up-date clock systems, and perform other

John Kean of NPR/Washingtondiscusses FM/SCA transmitter perform-ance.

functions as well. The full system isscheduled for implementation thismonth.

FM/SCAAn area of concern for many public

radio stations is the seeming incom-patibility of stereo FM and SCA. JohnKean, engineer, NPR/Washington, di-rected one session to the prob-lems encountered by adding SCA toare problems, and Kean tried to showengineers where the problems mightlie and what might be done aboutthem.

He pointed out that the tuning of thetransmitter is always important. Hesuggested that tuning for minimumAM noise might produce the bestresults and minimum SCA crosstalk.For example, if a transmitter has abandwidth of more than 2MHz, thenthere will be no substantial problemwith adding SCA. If, however, thebandwidth of the transmission systemis less than 0.5MHz, serious SCAproblems can result. Kean pointed outthat narrow bandwidths will also in-crease distortion and reduce separa-tion. He warned that old antennasystems, especially multiple bay in-stallations, can be particularly bad forSCA performance. One good way tomeasure the performance of the totalsystem is to use a spectrum analyzercoupled to the output of the VSWRbridge (without the detector). You canthen check return loss and not have toworry about other stations' signalshiding some of your system's prob-lems.

Multipath can also cause poorcrosstalk performance. One graphdisplayed showed the different levelsof crosstalk vs. the time delay betweentwo signals. Kean pointed out thattime delays resulting from paths ofone-half and one mile were typicallythe ones that cause most of the prob-lem.

Remote programsA panel of engineers familiar with

RPU and STL systems was assembledto discuss the various methods ofbroadcasting remote programs. Manyof the users were using dbx noisereduction to extend the performanceand range of their equipment. Oneengineer said he thought that a majormanufacturer of remote pickup equip-ment had a serious flaw in that thereceiver required a quiet environ-ment, otherwise, excessive IM prob-lems developed. He outlined the typeof problems he had encountered in at-tempting to use this receiver in a loca-tion with multiple transmitter sites.He also noted that a weak RF signal

compounded problems if the dbxnoise reduction was used. However,when adequate receive signal wasavailable, the noise reduction systemperformed well. Typical ranges withthis type of equipment were five to 30miles with 58-60dB signal-to-noiseratios.

Engineers were encouraged todevelop and participate in local fre-quency coordinating committees.Steve Lynn from the FCC said, "I don'tfrequency coordinate; you do." Thisposition seemed to be confirmed byengineers from major cities. Mostwere either a part of some frequency

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J 011y 1982 Broadcast Engineering 67

coordinating effort or were at leastfamiliar with it.

One engineer suggested that thosestations with joint TV/radio licensescould use the TV band and a TVremote pickup link to transmit digitaldata back to the radio station. The sta-tion could use a PCM system feedingthe TV link and obtain high qualityaudio at the studio with the digitaltransmission scheme. It was noted bya member of the panel that this prac-tice might be considered illegalbecause radio stations are not permit-ted to use TV frequencies for programtransmission.

Neal Muncy: Maintaining the aging taperecorder.

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ATR repairOne of the most beneficial sessions

conducted at the conference wasdirected to the repair andmaintenance of older tape recorders.The panel was headed by Neal Muncyof Muncy Associates. He used the1 -hour period to present enoughuseful information to fill a magazine.

Although most engineers wouldprefer to simply replace old recorders,Muncy pointed out that even the oldAmpex 350 series and Scully 260-280series recorders can be made to per-form with good results.

Muncy pointed out that there weretwo primary areas of concern withwhen dealing with old tape record-ers-electrical and mechanical. Theelectrical problems can be furtherbroken down into those troublesassociated with vacuum tubes, earlysolid-state devices or bias problems.The mechanical problems are brokendown into four areas-head and tapepath wear, motor and electrome-chanical problems.

Muncy began by requiring aminimum amount of equipment to beavailable to the engineer. He said thatfailure to have the basic pieces of testequipment would condemn the per-formance of the tape recorder to lessthan what could be expected.

In order to make his point, Muncymisaligned and aligned a recorder forthe audience, showing the results onTV screens. He pointed out how therecord heads and playback heads canbe misaligned, how poor reel tensionaffects performance and what stepsmust be taken in a particular sequenceto eliminate the difficulties.

Final notesThe 1982 Public Radio Conference

was a success as usual. Thoseengineers attending the PRC foundthat the sessions were directly ap-plicable to their needs, which is notalways the case at other conventionscatering to commercial radio. Thus,the need for a conference directedtoward the needs of broadcast engi-neers from public radio stations is meteach year by the PRC. It offers the on-ly opportunity for many engineers tomeet with others involved in the samebusiness. It also provides a chance forthe engineers and broadcasters in thepublic radio field to have an input atthe network level and influence thedecisions made there. As funding forpublic radio becomes even morecritical, these types of meetings pro-vide the opportunity for engineers andother broadcast personnel to discussmany of the problems of public radio.

I :r:-)))11


feedback

Coaxial line questionedYour February 1982 issue of Broad-

cast Engineering contains an in-teresting article on page 82 titled"Waveguide Improves TransmissionLine Efficiency," by Richard E. Fiore.

In the comparison made of attenua-tion factors for 8 -3/16 -inch diameter750 coaxial line and waveguide, arather impractical choice seems tohave been made in selecting Channel63 (767MHz) for the comparison. Tomy knowledge no manufacturer of8 -3/16 -inch diameter 750 coaxial linerecommends such coaxial line for useat this frequency. If this is incorrect,perhaps you or the author could sharethe name of this manufacturer withyour readers.

Your assistance in clarifying thispoint will be appreciated.

D. G. HymasAntenna Engineering

RCA Broadcast SystemsGibbsboro, NJ

Author's responseThe point of the entire article ap-

pears to have been missed. The articletreated only the use of waveguide and8 -3/16 -inch Dia., 750 line for tall towerUHF straight (vertical) transmissionline systems. Further attention wasbrought to the fact that symmetrical(physical construction) componentsshould only be considered to avoidundesirable moding problems.

Considering the fact that the trans-mission line system under discussioncontained no asymmetrical com-ponents of any type and the frequencyof comparison selected was wellwithin the 8% accuracy commonlyassociated with the formula for deter-mining higher order moding frequen-cies,* I did not feel that my com-parison calculations were abnormallyout of line.

The intent of the article is not to usecoaxial line for vertical UHF transmis-sion line systems, but only as a lastresort. The reason for this is that theonly advantage of coaxial line is itsreduced tower wind load factor. Withthe advent of circular waveguide andless costly tall tower structures to ac-commodate waveguide systems, eventhis advantage is rapidly becoming aminor consideration in designing effi-cient UHF TV transmission linesystems.

Richard E. Fiore'Microwave Transmission Design Data, T. Moreno,Page 69, Para. 8.

Job connectionI am an instructor for the Video

Workshop at our high school in Japan.Students in this workshop are involv-ed in the production of 3/4 -inchvideotapes: camera work, lighting,storyboarding, scripting, filming,editing and producing/directing.

I would like to explore the possibili-ty of forming a relationship with a

stateside station with an ultimate goalof future employment for some of ourstudents upon graduation.

Joel DamesZHSTV

Editor's note: Interested organizations may respond toDames at the Department of Defense, DependentsSchools, Zama American High School, APO, San Fran-cisco, CA, 96343.

:I:-))))1

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Loudspeaker systemsTannoy's SRM 10B features a

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Power amplifiersFeaturing rugged modular construc-

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SequencerGreat American Market's Quik-

Chase sequencer features 16 pre-pro-grammed sequences with four outputchannels. Options include an aux-iliary 30A solid-state slave pack and a

custom -programmed sequence.Circle (272) on Reply Card

Automation systemThe model 2000 computer and the

MC1200 from Interface Data Systemscombine to form a machine con-trol/station automation system. TheMC1200 machine control series maybe used independently on any specificcomputer system or may be operatedmanually without the use of a com-puter.


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70 Broadcast Engineering July 1982Circle (66) on Reply Card

tion offers Dolby C -type noise reduc-tion, sum -and -difference matrixingand fully automatic operation. FETswitching offers remote control. Thesystem is modular.


Talk show interfaceThe Generic Talk Show interface

from High Country Engineeringmeasures 4"x6"x21/2". Installation re-quires four connections. Interfacefeatures two mic channel inputs.


Video, audio reel clocksVideo Retrofits transforms retired

reels (supplied by the purchaser) intoclocks with Quartz step secondhandmovement. Movements are accurateto within one minute per year. Clockhubs are finished hardwood. Price is$20 (includes postage on returnedclock). For information write: VideoRetrofits, 2011 Ross Ave., Schofield,WI 54476.

TripodO'Connor Engineering Laboratories'

Pro Video Tripod is suited for profes-sional video environments. It inter-faces with the O'Connor models 30

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Record careThe Discwasher DiscKit includes the

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Reference line generatorThe RLG reference line generator

from Maric Industries Ltd. featuresremote control up to 100 meters andbuilt-in H delay adjustment. Referencelines may be added to any of eight in-dependent video circuits.


Color monitorThe Philips LDH 6200 color monitor

is suitable for OB vehicles, productionhouses, broadcasting networks,facilities companies, educational andtraining studios, for use with VTRs,telecine, camera, production monitor-ing and other TV uses.


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"I need threewaveform monitorsthat can be rackmounted. And they'vegot to be portable, too:"

HITACHIHEARD YOU.

You want three waveform monitors that fit side by side ina standard 19" rack mount.

But you also want to be able to slip one out easilywhen you need to go on location.

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business

Audio + Design to distributeCalrec Microphones

Audio + Design Recording will be the exclusivedistributor of the full range of Calrec Condenser Micro-phones in the United States, it was announced recently.

Calrec Microphones, renowned for their superb audioperformance, are industry standards throughout thebroadcast and recording industries of Britain andNorthern Europe.

Apart from the standard range of CondenserMicrophones, Calrec also manufactures the Soundfieldambisonic microphone as used by the BBC to record theRoyal Wedding. The Soundfield microphone allows theaudio engineer/producer unprecedented freedom andflexibility of microphone technique-in particular enabl-ing the effective polar pattern of the microphone as wellas its direction -of -pointing, both in pan and tilt, to be ad-justed at a live recording session as well as in post -sessionprocessing of master tape.

BBC orders LDK 14S camerasPye TVT Ltd., the Broadcast Company of Philips, has

announced the sale of five TV cameras to the BBC. Thefive LDK 14S EFP cameras will be supplied to the BBC'soutside broadcast division, and some will form part of thecamera complement to be shipped to Spain to providecoverage of the World Cup this month.

The BBC's outside broadcast division will now have atotal of 14 LDK 14S cameras as compatible portable com-panions to the 60 Philips LDK 5 triax production cam-eras, which make up the core of the BBC's refitted OBfleet.

The LDK 14S EFP camera, while producing broadcastquality pictures, is one of the lightest portable camerasavailable in its class.

In Spain, the high mobility of the LDK 14S will be usedto provide touch -line shots, interviews and dressing roomshots to bring the immediacy of live sports coverage tothe World Cup production.

Taft TV stations order Harris antennasTwo Taft Broadcasting Company TV stations have

recently ordered satellite antenna systems valued at$961,000 from the broadcast division of Harris Corpora-tion.

WDAF-TV, Kansas City, MO, will install a 9m uplinkantenna system. The station already employs a Harris8.8m receive -only dish.

Station WBRC-TV, Birmingham, AL, will install asimilar 9m uplink dish. WBRC-TV now uses a Harrisreceive -only 9m satellite antenna.

Both stations have also purchased a Harris 9165 earthstation facilities control system, which provides up to 24pre-programmed antenna positions and earth station con-figurations. WDAF-TV plans to use its 9165 to remotelycontrol the station's new uplink antenna. WBRC-TV willuse its Harris 9165 to remotely control its receive -onlyand uplink antennas.

RFM develops SAW technologyDallas -based RF Monolithics (RFM) is on the leading

edge of a new technology that will dramatically improvethe quality and cost of most products using radio frequen-cies. Called surface acoustic wave (SAW), the technologyis already improving the reception of commercial radiosand televisions and may open public access to additional


radio frequencies in the next few years.RFM was formed in 1979 by four members of the Texas

Instruments central research team who wanted todevelop SAW technology for the commercial market. Ac-cording to Lawrence Ragan, RFM president and co-founder, simple SAW devices had been used by themilitary for some time, but the sophisticated manufactur-ing equipment necessary for volume fabrication of ultra-high frequency (UHF) SAW components had never beendeveloped.

RFM landed contracts from the Federal Communica-tions Commission and the Naval Research Laboratory, aswell as a research grant from the National Science Foun-dation to design the components.

RFM is developing SAW components for two broad ap-plications. One is radio frequency selectivity or the abilityto completely isolate a single frequency from neighboringfrequencies. Of the various filtering methods now in usefor frequency selection, each has disadvantages. Somefilters perform well only at low frequencies. Others func-tion throughout the radio spectrum, but are bulky andoften permit distortion from neighboring frequencies.RFM's SAW bandpass filter combines the best of allmethods. It is small, operates over a wide frequencyrange and selects only the desired frequency, preventingsignal overlap.

The other application is frequency control or maintain-ing and manipulating the signal. Again, current methodsare either not stable enough or are only suitable for nar-row sections of the frequency band. The SAW resonatorhas excellent stability throughout the frequency spec-trum.

Last year, RFM was awarded a $1 million contract fromScientific-Atlanta for SAW resonators, the first largevolume application of SAW devices in the cable TV in-dustry. Recently the company introduced a SAW filter forcable TV systems that eliminates interference from adja-cent channels.

Rainbow plans Ku -band satellite systemRainbow Satellite has announced plans to construct,

launch and operate a new Ku -band domestic satellitesystem that will serve business and institutional userswith a wide variety of video and data services. Rainbowfiled its application with the Federal CommunicationsCommission on April 23, 1982, and anticipates launchingits first satellite in the last quarter of 1985.

Rainbow proposes a 3 -satellite system. Two of thesatellites will be in geosynchronous orbit at 85° and 131°West Longitude. The third satellite will be used as aground spare. Rainbow's selection of 85° and 131° is in-tended to take advantage of the many satellite receive an-tannae already positioned to receive C -band traffic fromthe 131° orbital position and to counter rain attenuationproblems that are unique to Ku -band systems.

The Rainbow business satellite ground system reliesheavily on the institutional cable, or "B" cable, that cableTV franchise holders are installing in many cities. TheB -cable ties businesses and institutions into local cableTV systems, thus making business -to -business com-munications possible via the cable system. To date,however, the B -cable has been in limited use. By joiningcable systems via Rainbow satellite, local businesses andinstitutions will be linked with other businesses and in-stitutions across the country. The Rainbow satellite cableinterconnection will provide users with the ability to dovideoconferencing, high speed data exchange and othervideo and data communications and computing func-tions. Users not served by B -cable will have the samecommunications and computing services available tothem through other terrestrial distribution systems.

:1:))))1

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Many, many options and accessories areavailable. Ask us about them. Our brochuretells the whole story, but not for long. Wekeep adding new products.

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IIII

.1

SuperadioContinued from page 61

on -air station promotions and con-tests.

Superadio's signal is transmitted via15kHz stereo channels by World Com-munications, New York, for uplinkingto Westar III's Transponder I. TheAssociated Press downlink nearestthe local station receives the programand delivers it by landlines to the localstations.

The transmission system, accordingto Dennis Feely, director of technicaloperations, ABC Radio Enterprises,employs a new microprocessor -con-trolled device called a cue commandsystem. This system was designed andbuilt especially for Superadio by Cen-tury Video, Ontario, Canada, underthe direction of Feely. The system isessentially a large computer based atSuperadio transmission originationthat talks to a cue command decoderat each station.

The cue command decoder hasthree primary functions. The first is toprovide a relay closure that allows adirect interface to the remote start of12 individual stereo cartridge ma-chines. Cue commands 1-12 connectto the respective cartridge slots. Thecarts are then automatically down-

The MAP II Multiband Audio Processgives you optimum modulation ofyour AM/AM-Stereo program. Yet itcosts much less than similarsystems.

Discriminate CompressionOnly MAP II offers you indepen-dent compression and equalizationfor each of eight bands. Input levelis held constant by a slow, gain -riding A.G.C.

Inaudible Phase OptimizationProgram phase is silently "rotated"for maximum positive modulation.

loaded from Superadio with music,news or advertisements. The audiooutputs of each of the 12 cartridgemachines are connected to an audioswitcher, ultimately controlled bySuperadio through the cue commandsystem. Other commands are avail-able that allow the use of warninglights for 10 -second rejoin cues or Topof the Hour commands to synchronizethe station clock system to Superadio.

Second, the cue command decoderprovides a real time program log ofeach song played through the use ofan attached hard copy printer at eachlocal station. Preceding each song is asilent computer command signalingthe cue command decoder to recordthe song title and any other informa-tion that goes along with it onto theprinter.

Third, by use of the same processused to provide a program log, the cuecommand decoder serves as an elec-tronic mail system, allowing writtenmessages to be received by the localstation from Superadio.

The cue command system allows upto 99 different cue commands to be ex-ecuted from Superadio. "These addi-tional commands have not yet beendefined," Feely said, "but the system iscapable of a lot more than I can relateto you now."

10 us,

1:1:)))11

31

Absolute Peak ControlA unique integrated peak controllercombines a hard clipper with a low -distortion peak limiter.Convenient OperationFeatures include selectable low -and high-pass filters, "proof" mode,and built-in pink -noise generator.Call or write today for moreinformation.

Inovonics Inc.503-B Vandell Way TelephoneCampbell, CA 95008 (408) 374-8300


peopleVlahos Gottschalk Research Corporation has announcedthe resignation of Petro Vlahos, president. He was subse-quently named board chairman of the company. PaulVlahos, formerly vice president, advanced to president,and Pat Smith, formerly sales manager, moved to vicepresident.

James B. Lansing Sound has announced the appointmentof James S. Twerdahl to the position of executive vicepresident and general manager. Before joining JBL, forsix years Twerdahl held upper management posts withJensen Sound Laboratories, including vice president ofmarketing and sales, general manager of the car stereodivision, and most recently, chief executive officer.

Modulation Associates has announced that WarrenBacigalup has joined the company as productionmanager. In this capacity, Bacigalup is responsible foroverall plant operations.

Richard V. Lunnis has joined AF Associates as nationalsales manager. Before joining AFA, Lunnis was Africanregional manager for Marconi Electronics.

Stanley W. Faught, general manager of the MagneticTape Division (MTD) of Ampex, has been elected vicepresident by the corporation's board of directors. Faughtwas named general manager of MTD in March 1981 aftera 6 -year career at Ampex's Colorado Springs, CO, facility.During the last four years, he was responsible for themanufacture of audio -video products in Juarez, Taiwan,and Cupertino, CA.

Ernest P. Hodur was named president of AndersenLaboratories. Hodur most recently served as generalmanager of Andersen Laboratories, assuming that posi-tion in March 1981. He joined the company in September1976 as a salesman, was appointed director of sales inNovember 1977 and director of marketing in March1979, before becoming general manager.

Video Data Systems has announced the appointment ofBob Hall as sales specialist. In his new position, Hall willdevelop new products and integrate them into the salesdepartment.

William W. Weston has been named Eastern area salessupervisor for 3M's professional audio -video equipmentline. Weston will supervise sales activities of five EastCoast account representatives for the company's digitalaudio systems, graphics generators and videotaperecorders. Previously, he was senior account represen-tative for the video line in the mid -Atlantic states region.

Ed Stamm, Victor Duncan, has been promoted to rentalmanager, Film and Video, for the Dallas branch opera-tion. Stamm started with the company in the film rentaldepartment of the Chicago office in 1977 and has beenwith the Dallas film rental department for three years.

Data Communications Corporation (DCC) has an-nounced the promotion of Jamie L. McMahan to direc-tor of marketing for the Broadcast Division, a new posi-tion. McMahan is responsible for all marketing/com-munications of the division and will report to ScottPierce, Broadcast Division president. I :14)11

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VIR JAMES P.C.CONSULTING RADIO ENGINEERSApplications and Field Engineering

Computerized Frequency Surveys4940 E. 39th Ave.

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RALPH E. EVANS ASSOCIATESCONSULTING COMMUNICATIONS ENGINEERS

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SMITH and POWSTENKOBroadcasting and Telecommunications

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D. L. MARKLEY& Associates, Inc.CONSULTING ENGINEERS

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Allocation EngineeringAntenna Systems

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ad index

ADM Technology IFC Micro-Trak Corp. 66ADDA Corp. 31 Microwave FilterCo., Inc 10

American Data 11 Midwest Corp. 5

Andrew Corp. 27 Miles Air Products Ltd. 76

Asaca/Shibasoku Corp. of America 16, 75 R. K. Morrison Co. 70

Audio Kinetics 67 Moseley Associates 48

Audio-Technica U.S., Inc. 17 Motorola Communications 49

Auditronics Inc. 61 Nady Systems Inc. 71

Belar Electronic Labs 66 Opamp Labs Inc 70

Beyer Dynamics Inc. 68Orban Associates Inc 33, 36

Bogen Photo Corp. 6Otari Corp 56-57

Broadcast Electronics Inc 8Pacific Recorders and Engineering

Corp. 50Central Dynamics Corp. 11 Pinzone Communications ProductsCetec Antennas 55 Inc. 1

Cetec Vega 65 Polyline Corp. 58Comex Systems 54 Potomac Instruments 62Continental Electronics Mfg 77 Q.E.I. Corp 42Crosspoint Latch Corp 44 Quantum Audio Labs 69dbx, Inc. 42 Rohde & Schwarz Sales Co. 14ESE 73 Ross Video Ltd. 46Eastern Airlines 4 Russco Electronics Mfg. Co. 76Elcom/Bauer 40-41 Sachtler GmbH 70Electro-Voice Inc. 37 Sigma Electronics 66Eventide Clockworks 59 Sony Corp. of America 12-13, 34-35Excalibur Industries 14 Spectra Sonics 26Farrtronics Ltd. 38 Standard Communications 23Grass Valley Group Inc. 7 Standard Tape Laboratory 60Hitachi Denshi America Ltd. 3, 72 Stantron Div of Wyco Metal 29lnovonics, Inc. 74 Studiomaster Inc 64Integrated Sound 64 Symtec 60International Wholesalers 74 Taber Mfg. Co. 77Leitch Video Ltd. 21 TASCAM Div of TEAC Corp. 47Lerro Electrical Corp. 39 Tektronix Inc 9Lexicon Inc. 43 Telcom Research 63Logitek Electronics Systems Inc. 71 Telephonics Equipment 62MCI, Inc 15 Telex Communications Inc. 223M Magnetic A/V Div 24-25 Thermodyne International Ltd 45Maxell Corp. of America IBC Video Aids of Colorado 58Micro Communications Inc 38 Ward -Beck Systems Ltd. BCMicrophonics 70 Winsted Corp. 71

BROaDCaSTenaneeRinG

Advertising Sales Offices

NEW YORK, NEW YORKJoe Concert,Phone: (212) 682-6630Anita K. GoldPhone: (212) 682-6040630 Third Ave., Eighth FloorNew York, NY 10017

KANSAS CITY, MISSOURIJan Winters,P.O. Box 12901, Overland Park, KS 66212Phone: (913) 888-4664

SANTA MONICA, CALIFORNIAHerbert A. Schiff,Schiff & Associates1408 Santa Monica Mall, Suite 200Santa Monica, CA 90401Phone: (213) 393-9285

LONDON, ENGLANDJohn Ashcralt & Co., John Ashcralt12 Bear StreetLeicester Square, London WC2H 7ASEnglandPhone: 930-0525Telex: 895-2387

AMSTERDAM, HOLLANDJohn Ashcralt & Co., John J. LucassenAkerdijk 150A, 1171 PV-Badhoevedorp,HollandPhone: 0-2968-6226Telex: 11640

TOKYO, JAPANSumio OkaInternational Media Representatives, Ltd.,2-29, Toranomon 1-chome, Minato-kuTokyo 105, JapanPhone: 502-0656

TAIWAN, R.O.C.Antony LiuLong Life Advertisement Agency Co.P.O. Box 36-10948F-3.50.sec 5Naking E RoadTaipei, TaiwanTelephone: (021760-2468Telex: 25923 FondlandCable: Longad Taipei

NORWOOD, AUSTRALIAWilliamson & Associates Pty. Ltd.P.O. Box 419Norwood 5067, AustraliaPhone: 42-7074

24 -HR.PROFESSIONALSERVICE FOR

COLLINS &CONTINENTAL

AM & FMTRANSMITTERSContinental Electronics offersparts and engineering servicefor all Collins AM & FMtransmitters.

Whenever you want parts orservice for your Collins orContinental equipment, phoneour service numbers day or night,

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classified HELP WANTED (CONT.) HELP WANTED (CONT.)

Advertising rates in Classified Section are 60 centsper word, each Insertion, and must be accompaniedby cash to insure publication.

Each initial or abbreviation counts a full word.Minimum classified charge, $10.00.

For ads on which replies are sent to us for forward-ing (blind ads), there is an additional charge of $5.00per insertion, to cover department number, processingof replies, and mailing costs.

Classified columns are not open to advertising ofany products regularly produced by manufacturersunless used and no longer owned by the manufactureror distributor.

TRAINING

ELECTRONICS DEGREE by correspondence. EarnA.S.E.T., then B.S.E.T. Free catalog. Grantham Collegeof Engineering, 2500 La Cienega, Los Angeles, Califor-nia 90034. 7-82-tfn

FCC GENERAL RADIOTELEPHONE operators licensethrough cassette recorded lessons at home plus oneweek seminar in Boston, Washington, Detroit orPhiladelphia. Our twentieth year teaching FCC licensecourses. Bob Johnson Radio License Preparation,1201 Ninth, Manhattan Beach, Calif. 90266, Telephone(213) 379-4461. 8-81-tfn

SERVICES

ONE STOP FOR ALL YOUR PROFESSIONAL AUDIOREQUIREMENTS. Bottom line oriented. F.T.C. BrewerCompany, P.O. Box 8057, Pensacola, Florida 32506.

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HELIAX-STYROFLEX. Large stock - bargain prices-tested and certified. Write for price and stock lists.Sierra Western Electric, Box 23872, Oakland, Calif.94623. Telephone (415) 832-3527. 1-73-tf

VIF INTERNATIONAL will remanufacture your Ampexor Scully (Ashland/Bodine) direct drive capstan motorfor $200. Average turn around time -2-3 weeks. fordetails write P.O. Box 1555, Mtn. View, CA 94042, orphone (408) 739.9740. 1.82eom

TRANSMITTER TUBES REPROCESSED-Save 40 to50%. 3CX2500, 4CX5000, 4CX15000 and many others.Write for details. FREELAND PRODUCTS CO., 3233Conti St. N.O., La. 70119. (504) 822-9222. 6-79-tfn

BROADCAST CRYSTALS for AM, FM and TV transmit-ters, frequency change, repair or replacement of oventypes, also vacuum types where needed. High qualityproducts and better delivery. Don't be without a sparecrystal. Over 30 years in this business. Eidson Elec-tronic Co., Box 3751, Temple, Texas 76501. Phone (817)773-3901. 4-82-eom

HELP WANTED

TELEVISION HELP WANTED-TECHNICAL: $40,000+ FIRST YEAR GUARANTEED. Our company hasgrown so quickly in the past 5 years, we are indesperate need of a very special person who knowsbroadcast equipment intimately and has aggressivesales ability. We are diversifying into other areas andneed someone to take over the equipment sales divi-sion. Responsibilities include sales of new and usedbroadcast equipment and further development ofequipment sales division as business demands. Weare a first rate company and believe in paying topdollar for the right person. Call Bill Kitchen, QualityMedia Corp., (800) 241-7878. 9-80-TFN

ENGINEERS, TV Systems Engineers, ElectronicTechnicians, Technical Supervisors, Maintenance. Im-mediate openings. Experienced. Full time. Fullbenefits, plus Pension. Excellent salary plus commis-sions. Send resume to Technical Operations, Inc., P.O.Box 840, New Hyde Park, N.Y. 11040, or call PersonnelMgr. (516) 352-2238. 9-80-tfn

MarketingManagementTelevisionInstrumentation

Talk to Tektronix, the indus-try leader, about our immediateopportunities in our TelevisionProducts Group, based at ourOregon headquarters.

You will be responsible forthe management of existing pro-duct lines, development of newproducts and worldwide cus-tomer contact. Other dutiesinclude forecasting order levelsfor assigned products and devel-oping marketing plans.

Your background shouldinclude a BSEE or equivalentexperience. Extensive workexperience in the technical opera-tions area of a sophisticatedtelevision production facility isrequired.

Salary is open. Benefitsinclude profit sharing, health,life and dental insurance, andeducational support programs.

Please send your completeresume and salary history toTerri Timberman, MS Y6-010,Tektronix, Inc., P.O. Box 500,ACC2, Beaverton, Oregon 97077.

We are an equal opportunityemployer m/f/h.

Tektronix"0AW,TOTOEMMUJN,

IMMEDIATE OPENING FOR TV broadcast mainte-nance engineer...general class FCC license requiredplus a minimum of 1 year experience maintainingstudio equipment. KBIM-TV is an Equal OpportunityEmployer. Send resume to Gene Rader, KBIM-TV, P.O.Box 910, Roswell, N.M. 88202-0910. 6-82-3t

WOFL TV 35 IN ORLANDO, Florida is seeking an experienced Maintenance Engineer. Immediate open-ing - First phone or equivalent. Salary negotiable. Ap-ply to Chief Engineer, P.O. Box 5729, Orlando, Florida32855. 6-82-2t

HANDS-ON CHIEF-proficient in areas of: FR, Digital,Ampex Quad, RCA Telecine, BVU, Vidifont. New facili-ty in beautiful Salisbury, Maryland. Salary commen-surate with experience. Send resume to Box 321, inSalisbury, Maryland 21801. AF, EOE1MF. 5-82-3t

TELEVISION MAINTENANCE ENGINEERS-Repairand maintenance of various television equipment, in-cluding RCA and Ikegami chain and Ampex VTR's. Re-quirements: First Class FCC license, three to fiveyears applicable experience and an educationalbackground to assure ability to operate and maintaintelevision equipment. Apply to: Director of Finance,WYES-TV/Channel 12, Box 24026. New Orleans, LA70184. NO CALLS! WYES-TV IS AN EQUAL OPPOR-TUNITY EMPLOYER. 5-82-4t

TELEVISION TRANSMITTER ENGINEERS-Assumetotal resonsibillty for the transmitter facility duringassigned shift. Closely monitor and maintain qualitycontrol of received and transmitted video and audiosignal to assure compliance with FCC Rules andRegulations. Requirements: First Class FCC license,three to five years applicable experience and aneducational background to assure ability to operateand maintain television transmitter. Apply to: Directorof Finance, WYES-TV/Channel 12, Box 24026. NewOrleans, LA 70184. NO CALLS! WYES-TV IS ANEQUAL OPPORTUNITY EMPLOYER. 5-82-4t

SYSTEM DESIGN ENGINEER-CCTV. Must be able tospecify, design, supervise installation and de -bug topquality industrial CCTV systems. Experience required.SYSTEM ENGINEER -AUDIO VISUAL and PROFES-SIONAL AUDIO. Hands on experience with audio/visual equipment a must. Digital knowledge helpfulbut not required. Responsibilities include completejob oversee and client interface. Both positions pro-vide paid health, life insurance, vacation, etc. Pleasecall collect 201-288-6130, Stylist Systems, Teterboro,N.J. 9-81-tfn

SYSTEM MANAGER: GENERAL MANAGER for 400MHz Midwest System. Experienced, knowledgeableprofessional required. Franchising experience a plus.Strong growth position with aggressive, medium-sizedMSO. Send resume and salary history in confidence toDept. 569, Broadcast Engineering, P.O. Box 12901,Overland Park, Kansas 66212. 7-82-1t

ASSISTANT CHIEF WANTED for progressive midmarket N station. Number one station in market.Clean area. Contact Jack Davis, 701-223-0900. EqualOpportunity Employer. 7-82-1t

MAINTENANCE ENGINEER: KRIV-TV has an openingfor a studio maintenance engineer: Minimum of fiveyears experience necessary. FCC license required.Please forward resume or apply at 3935 Wertheimer,Houston, Texas 77227, (713) 626-2610. EOE. 7-82-1t

ENGINEERSan Jose, California

KLOK Radio is a 50,000 wattdirectional AM radio stationlocated in San Jose, California.We are looking for an experiencedRF/maintenance oriented personto join our staff. Call or sendresume to:Mr. Allen WaterousKLOK RadioP.O. Box 21248San Jose, CA 95151(408)274-1170

KLOK is an equal opportunity employer.

TV ENGINEER: NEEDED FOR MAJOR UNIVERSITYproduction service. Responsible for the operation andmaintenance of state-of-the-art broadcast qualityequipment in new Telecommunications Center. Re-quires 2 -year degree in electronics and at least twoyears relevant experience. Salary competitive, ex-cellent fringe benefits. For complete job descriptionwrite to: Marshall E. Allen, Head, Educational Televi-sion Services, Oklahoma State University, Stillwater,Oklahoma 74078 by J uly 23, 1982. 7-81-1t


HELP WANTED (CONT.) HELP WANTED (CONT.) HELP WANTED (CONT.)

SOUTHEAST MICHIGAN AM -FM is seeking an assis-tant chief. Applicant must have a minimum of twoyears of technical school plus three years of ex-perience and valid FCC license. SBE certification aplus. EOE. Send resume & references to: Dept. 570,Broadcast Engineering, P.O. Box 12901, OverlandPark, KS 66212. 7-82-3f

ENGINEERINGAND TECHNICAL SALES

POSITIONS($15,000.00 - $60,000.00)

We specialize in the placement ofTECHNICAL ENGINEERS with TVand Radio Stations, Groups,Networks, Satellite Programmers,Production Facilities, Corporate andIndustrial TV, Mfrs and CATV. Alllevels and positions: Director, Chief,Asst. Chief, Studio Supervisor,Maintenance and Technical. (Our ser-vice does not include operational orprogram personnel). All locationsnationwide. Employers pay all fees -

Confidential, Professional. Over$4,000,000.00 in Salaried PositionsPlaced; we also place Technical SalesPeople. Employee and Employerinquiries Invited.

Phone/Resume - ALAN KORNISH1717) 287-9635

Key Systems106 New Bridge Center -Kingston. Pa 18704

EXPANDING CHRISTIAN TELEPRODUCTION facilityis in the need for an experienced maintenanceengineer. Work with new "state of the art" equipment,GV switchers, Chyron, one and two inch VTR's, audioboards and multi -track ATR's, DVE and editingsystems. Depending on experience, position woulddevelop into supervision of present maintenancestaff. Participate in ground floor construction of amodern teleproduction facility. Send resume or con-tact Gridley Quihuis, Technical Operations Manager,P.O. Box 2550, Baton Rouge, LA 70821 (504) 925-6239.We are an Equal Opportunity Employer. 6-82-20

CHRISTIAN TELEPRODUCTION FACILITY is in theneed for an experienced video tape editor. Experienceshould include system timing, and time code editing.Work with GV-300 switchers, Datatron/Sony one inchediting system and Chyron IV. Participate in theground floor development of a modern televisionfacility. Send resume or contact Gridley Quihuis,Technical Operations Manager, P.O. Box 2550, BatonRouge, LA 70821 (504) 926-6239. We are an Equal Op-portunity Employer. 6-82-2t

CONSULTING ENGINEERING FIRM based in SanFrancisco and specializing in AM -FM -TV broad-casting, CATV, and microwave systems needs compe-tent, personable, self-assured associate. BS in engi-neering essential, higher degrees desirable. Systemsdesign, FCC applications, forensic engineering, somefield work and travel. P.E. registration essential butmay be obtained later. Salary commensurate withqualifications and experience. Future share of owner-ship possible. Enjoy the benefits of a small special-ized professional firm with an established nationwidepractice. All replies confidential. Send resume toHammett & Edison, Inc., Box 68, International Airport,San Francisco, California 94128. 6-82-3t

CHIEF ENGINEER-FIRST INDEPENDENT in 63rdMarket seeking production oriented Chief. To be in-volved with all equipment purchases and to put sta-tion on air from ground up. Will consider experienced2nd man ready to move up. INDEPENDENCE BROAD-CASTING CORP., 111 3rd St., Des Moines, IA 50309,(515) 244-3197. 7-82-1t

TECHNICAL SALESPERSON needed for growingradio broadcasting equipment company. Send resumeand salary requirements to: P.O. Box 356, Edgemont,PA 19028. 7-82-1t

VIDEO TECHNICIAN WANTED: To take charge of aservice department in a Western MassachusettsVideo Sales, Service and Production Company andmake it profitable. Must have experience with 1/2", 3/4"and 1" Video equipment, broadcast quality cameras,CCTV Systems, be organized and able to deal withcustomers. We offer a highly competitive salary, goodfringe benefits and the ability to grow with a companyon the move. Send replies to: Dept. 567, BroadcastEngineering, P.O. Box 12901, Overland Park, KS 66212.

782-1t

ASSISTANT CHIEF NEEDED for growing PacificNorthwest TV station. Experience required in RF, VTR,ENG. Studio. Send resume or call D. Balfour, KTVL,P.O. Box 10, Medford, Oregon, 97501, 503-773-7373.KTVL is an Equal Opportunity Employer. 782-1t

TV MAINTENANCE ENGINEER. Strong on SonyE.N.G. equipment, BVU 200, BVU 50, Sony cameras.Call Chief Engineer in Port Arthur, Texas 713/9855557.

7-82-1t

SUPERVISOR/CHIEF TECHNICIAN-A leader in thevideocassette duplication field is looking for a wellorganized hands on chief technician able to supervisethe maintenance activity of large duplication facility.Position requires experience with Beta, VHS, andU-matic cassette formats as well as "state of the art"master playback VTR's. Supervising skills desired butnot required. Salary commensurate with experience.Send resume to: Broadcast Engineering, Dept. 568,P.O. Box 12901, Overland Park, KS 66212. 7-82-1t

MAINTENANCE TECHNICIAN-A leader in video-cassette duplication is looking for a well qualified in-dividual responsible for the maintenance, trouble-shooting and repair of video recorders. Candidateshould possess strong electronic background andconfidence with electromechanical devices. Videoknowledge helpful but not required. Excellent oppor-tunity to broaden one's skills in a diverse profession.Send resume to: Broadcast Engineering, Dept. 569,P.O. Box 12901, Overland Park, KS 66212. 7-82-1t

UHF TV TRANSMITTER ENGINEER

We are one of the major companies supplying UHF TV Klystrons to the Broadcasting Industry. We presentlyhave a vacancy for an Applications/Sales Engineer capable of installing, tuning and trouble -shooting UHFklystron transmitters at our customers' installations.

Sales/marketing experience would be an advantage. Product training at our factory will be provided.

We offer an excellent salary, bonus, company car, comprehensive benefits and an opportunity to excel with acompany who enjoys 50% annual growth rate.

Please send your resumein confidence to:

An equal opportunity employer MIF

gEEV, INC.7 Westchester PlazaElmsford, New York 10523

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NTERNATIONAL OPPORTUNITYAUDIO VISUAL

The King Faisal Specialist Hospital andResearch Centre in Riyadh, Saudi Arabia hascurrelt openings in its Audio Visual Depart-ment. The AV Department is responsible forthe educational and television needs of theemployees and dependents of this 250 bedacute care referral facility and medical citycomplex.

The following positions are available:CHIEF TV ENGINEER: BSEE, 8 years re-lated experience (2 as supervisor) in the de-sign and maintenance of CCTV systemsand other AV equipment.TV TECHNICIAN: AA Electronics or 2 yearstrade school or military equivalent plus5 years relevant experience-at least 2 ofthose years maintaining and repairing TVand video systems. (Tech positions are sin-gle status.)

Benefit package includes attractive salary, 30day annual leave, free transportation, furnish-ed lodging, free medical care, bonus pay andbonus leave. Two year contract.

For further information, please send resumeto: Kathleen Langan, Personnel Consultant,Hospital Corporation of America -InternationalDivision, P.O. Box 550, Nashville, TN 37202

HCAInternational DivisionAN EQUAL OPPORTUNITY EMPLOYER


MISCELLANEOUS FOR SALE EQUIPMENT FOR SALE (CONT.) WANTED TO BUY

VIDEO T-SHIRTS. TV DESIGNED. Our designs include;"ENG" with Reg. Chart, "GLITCH", "RESOLUTION","VIDEO PEOPLE DO IT IN SYNC" and many new de-signs.. Send for free info to: AaRLO ENTERPRISES,109 MINNA ST., SUITE 254, SAN FRANCISCO, CA94105. 8-81-tfn

COLORBAR TSHIRTS, all sizes -$9.95 PPD. Specifylarge or pocket size bars-Also sweatshirts, wind -breakers and BB hats with bars- PAMCO, Box 441,Massapequa, NY 11758. 6-82-3t

RAZOR BLADES, Single Edge. RALTEC, 25884BHighland, Cleveland, OH 44143. 12-81-12t

EQUIPMENT FOR SALE

USED TV TRANSMITTER BARGAINS: GE -transmitterpackage on Ch. 8, 35kw excellent condition, serving asoperating standby now, with TY53B1 antenna and31/4" transmission line; GE TT -530 VHF, Hi Band 25kwgood working condition; GE UHF transmitter 30kw(Low Band), operating with good useable klystrons;RCA TTU-50C, 50kw UHF, Low Band; RCA 10kw Ch. 42,excellent condition; RCA 30kw, UHF, Hi Band, finetransmitter; RCA 1kw from Ch. 14 up. What do youneed? Most of the above can be retuned! (4) Varian30kw Klystrons 4KM100LF good life remaining (Ch.34-52). 61/4" and 31/4" transmission line with fittingsand hangers. Call Ray LaRue, Quality Media Corp.(800) 241-7878. In GA (404) 324-1271. 7-82-1t

VTR HEADWHEEL ASSEMBLY for Ampex VR-2000 2"Quad -$575. TVE, 2583 Caladium Drive, N.E., Atlanta,Georgia 30345. 6-82-2t

EQUIPMENT FOR SALE: Digital Video Systems DPS-1TBC; Hitachi FP-40SS ENG/EFP/STUDIO camera;Hitachi HR-200/HST 1" Type C w/SLO-MO; HitachiSK -91 ENG camera; Panasonic AU -700 edit system;Conrac 7641 Hi-Rez monitor; Ikegami TM-142RHA Hi-Rez monitor; Ikegami ITC -350 ENG camera; 3MChroma Keyer for #6114 SEG; 3M #5130 Matrix WipeGenerator; Jatex USEC-42T editor; Sony VP -3000 34"portable player; Cinema Products 5P001 camera -prompter; Ampex ATR-700-2; 3M #210 color bar/syncgenerator; Quanta Q -VII character generator. Call Tedor Terry at 518-449-7213. 6-82-21

BNC CONNECTORS, UG-1094/U - 795, UG-88/$1.35, UG-260/U -$1.35, UG-914/U -$1.40, UG-255/U -$1.90, UG-273/U -$1.40. Call or write for our FREEcatalog. CZ Labs, 55 Railroad Ave., Garnerville, NY10923, (914) 947-1554. 5-82-3t

IVC 7000P CAMERA with tubes, mini -control unit, autoiris, two 200 foot cables, one 100 foot. Angenieux 15two 1 zoom lens, body support brace. Never used onmobile. Call Bob Canady at (515) 255-2122. 5-82-6t

USED TRANSMITTER REMOTE CONTROL SYSTEM.Require 3 metering functions and raise -lower func-tion. Phone George Sprague, (704) 645-9595. 7-82-1t

SMC DP -2 STEREO AUTOMATION SYSTEM, 3 Reel-to-reel, 5 carousels, 3 PB carts, 4 racks, 2 printers, en-code center, 3 video monitors, A-1 Condition. RichardRoiseland, CE, KSKX/KMAJ, P.O. Box 4407, Topeka,KS 66604, 913-272-2122. 7-82-1t

POST PRODUCTION EQUIPMENT COMPLETE, withevery option, one Ikegami ITC -240S, H & V Detail cor-rector, AC adapter, VFM 15C 11/2" viewfinder, VFM56C5" viewfinder and mount, J10 x 10B 10:1 servo zoomlens, rear controls, rack adapter and shoulder mount.One innovative Television Equipment H5 hydro headwith dual handles, Listec 56 PortaPed, 71 PortaSkid.One Videotek RMS color 8" receiver/monitor gun. OneSony BVU-100 broadcast recorder/reproducer withCLP-500 color pack and AC -5000 power pack. OneHitachi V -059B portable waveform monitor. EditingSystem: Sony microphones. Two Sony BVU-200Abroadcast recorder/reproducer. One Sony BVU-500ABroadcast professional editing console. Two VideotekVM-12 color monitor. Audio System: One TascamModel 3 audio board. One Teac 33005X. One CrownD-75 amplifier. Two JBL 430L monitor speakers. PostProduction Equipment: One Shintron 373 NU. OneGrass Valley 3274. One CVS 516 digital timebase cor-rector. One Videotek VSMPRD, dual 8" color monitors.One Shintron 350 encoded chrome keyer. One Shin-tron 300 console and more. Call (203) 633-3516 or633-0143. 7-82-1t

INCREDIBLE CAMERA BUY! New Thomson MC -301Eng Camera Includes 14:1 Fuji, Servo/Zoom Lens, 1.5"Viewfinder, (3) Saticons, AC Supply, Carrying Case,Factory Warranty, your price $6,950! Call while theylast. Ray LaRue, Quality Media Corp., (800) 241-7878.In GA (404) 324-1271. 7-82-1t

VTR's: RCA TR-70 -(3) RCA TR-60 Record Units 1000hrs. total time each; Ampex 1200B; Ampex VR 3000with metering and charger. Call Ray LaRue, QualityMedia Corp., (800) 241-7878. In GA (404) 324.1271.

7-82-1t

COLOR CAMERAS- USED: GE and RCA Film Chains,excellent condition; (1) Norelco LDH-1, 50' Cable; (1)GE PE -350; (3) GE TE-201 Good Operating Condition;Ikegami HL -33, HL -35; Toshiba/GBC CTC-7X, Minicam,plumbs. Call Ray LaRue, Quality Media Corp., (800)241-7878. In GA (404) 324-1271. 7-82-1t

AMBER 4400A WITH X -Y OPTION, super excellentcondition, great price $2500. (206)854-1004, 2710646thAvenue South, Kent, Washington 98031. 7-82-1t

2 GHZ, TV MICROWAVE, UNUSED. One year old. Ter-racom TCM 6108 5 watt, video and audio. Also, 475'and 50' of 11/2" heliax, 6' grid and 10' solid dishes. SidShumate, WVIR-TV, (804)977-7082. 7-82-1t

WAREHOUSE SALE: WE ARE IN THE SALVAGEBUSINESS and have In the warehouse a "HCC 300-50"coaxial cable. It was manufactured by CablewaveSystems Inc and supposedly got damaged in transit.We ended up with it and the boss says "sell it." Webelieve the value to be approximately $10,000.00. Callor write for specs and then make an offer. Geo. M.Ruddy & Co., 161 Prescott Street, Boston, Mass.02128, 617-569-7050. Mike Mentuck or Pam Feather.

7-82-1t

EQUIPMENT FOR SALE: DIGITAL VIDEO SYSTEMSDPS-1 TBC; Hitachi FP-40SS ENG/EFP/STUDIOcamera; Hitachi HR-200/HST 1" Type C w/SLO-MO;Hitachi SK -91 ENG camera; Panasonic AU -700 editsystem; Conrac 7641 Hi-Rez monitor; Ikegami TM-142RHA HI-Rez monitor; Ikegami ITC -350 ENGcamera; 3M Chroma Keyer for #6114 SEG; 3M #5130Matrix Wipe Generator; Jatex USEC-42T editor; SonyVP -3000 3/4" portable player; Cinema Products 5P001camera prompter; Ampex ATR-700-2; 3M #210 colorbar/sync generator; Quanta Q -VII character generator.Call Ted or Terry at 518-449-7213. 7-1-82

AMPEX 351 RECORDERS: several, completely rebuilt,new heads, bearings, etc. with original electronics$995, with Inovonics electronics $1495. 419-435-7170.

7.82-21

TEST EQUIPMENT -B&K 1472C, 15 MHz dual -tracescope; 2 H -P 1220A, 15 MHz dual -trace scopes; B&W210 audio oscillator and 410 distortion meter; SoundTechnology 1710A distortion measurement system.Also large stock of electronic parts and Fidelipac 350audio carts. William Howe, (607) 272-8080. 7-82-1t

REMOTE PRODUCTION UNIT, (4) RCA TK-760, (2)SONY BVH-1100, VITAL 114-2A, NEC DVE, completeaudio, intercom, RTS IFB, Vidifont MK IV -A. Unit iscomplete and ready to roll. Includes all monitors, testequip., cables, microphones etc. Cedar paneling andcarpeted inside a 28ft. Ford 800, with 6 ton A.C. Willconsider lease. Call (813) 689-3327 or Telex #52802ATLANTIC TPA. 7-82-1t

TWO (2) HITACHI SK96 CAMERAS Studio/Portable;Triax; Plumbicon tubes with extended reds; 17:1 Fu-jinon lenses; Remote controls. Used only six months.Call Russ Manning, AVT Television, (615) 584-2166.

7-82-1t

OMEGA CUSTOM AUDIO BOARD: 32 Input; StereoOutput; Full Equalization; Full VU Metering; Direct -to -Air Capabilities; Phantom Power. Asking $25,000 orbest offer. Call Russ Manning, AVT Television, (615)584-2166. 7-82-1t

Use


classified ads

WANTED: Pre -1928 radio equipment and tubes.August J. Link, Surcom Associates, 305 WisconsinAve., Oceanside, CA 92054, (714) 722-6162. 3-76-tf

HIGHEST PRICES PAID for 112 Phase Monitors andfor clean, 12 year old or less, 1 KW and 10 KW AMTransmitters. All duty and transportation paid.Surplus Equipment Sales, 2 Thorncliffe Park Dr., Unit28, Toronto, Canada M4H 1H2, 416-421-5631. 2-79-tfn

INSTANT CASH FOR TV EQUIPMENT: Urgently needtransmitters, antennas, towers, cameras, vtrs, colorstudio equipment. Call toll free 800.241.7878. Bill Kit-chen, Quality Media Corporation (in Georgia call404-324-1271). 6-79-tfn

WANTED: STATION LIBRARIE'S OF MUSIC, 16" ETs,12" Transcriptions, 45's, 78's, LP's. Boyd Robeson,2425 W. Maple, Wichita, KS 67213, (316) 942-3673,722-7765. 5-82-tfn

USED BROADCAST TELEVISION EQUIPMENT. Hun-dreds of pieces wanted and for sale. Please callSystem Associates to receive our free flyer of equip-ment listings. (213)641-2042. 1-82-12t

EQUIPMENT WANTED: Used 1000 ft. tower sought.New full power VHF, MidWest, seeks good used TVequipment, hi -band transmitter, antenna, line andstudio hardware. Inquiries Wm. Varecha, Box 200, Car-bondale, III. 62901, 618-457-2477. 7-82-1t

INSTANT CASH FOR BROADCAST EQUIPMENT:Urgently Need Good Used; Transmitters, AM -FM -TV,Film Chains, Audio Consoles, Audio -Video Recorders,Microwave, Towers, WX Radar, Color Studio Equip-ment. Ray LaRue or Bill Kitchen, Quality Media Corp.,(800) 241-7878. In GA (404) 324-1271. 7-82-1t

$500 REWARD FOR UHF TRANSMITTERS: For infor-mation which leads to our purchase of any UHF TVTransmitter. Call Ray LaRue or Bill Kitchen (800)241-7878. In GA (404) 324-1271. 7-82-1t

MOVING?If you're planning a move inthe near future, don't riskmissing an issue of Broad-cast Engineering. Pleasegive us 6-8 weeks notice ifyou're planning on changingyour address. Just write inyour new address below andmail this coupon, WITHYOUR SUBSCRIPTIONMAILING LABEL, to:


Subscriber ServicesP. 0. Box 12901

Overland Park, KS 66212

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IFFICD-oCrIES

IBEYOND OUR CONTROL...

r

(Ranslation: The cassette broke.)(Solution: Maxell U-Matic cassettes.)

If jammed U-Matics ever makeyou yearn for the days of live televi-sion something is wrong with thebrand of U-Matics you're using.A lot of things are very right withMaxell U-Matic cassettes.

They're built to stand up tothe toughest handling and editingconditions you can dish out. Theunique MaxelllEpitaxial" tape formu-lation gives you an extremely densemagnetic coating that yields superiorchroma and luminance. The pro-prietary Maxell binder system makes

sure the formulation, and every-thing you record on it, stays up toyour standards, indefinitely.

That's why every one of the net-works, hundreds of independent tel-evision stations and just about everymajor producer, director and camera-man in the business who tries MaxellU-Matic cassettes, buys Maxell.

Your Maxell supplier canmake sure your programming isn'tinterrupted. Ask him for MaxellU-Matic cassettes. Or ask us formore information.

maxell®PROFESSIONAL/ INDUSTRIAL DIVISION

Our success is magnetic.

Maxell Corporation of America, 60 Oxford Dr., Moonachie, N.J. 07074 (201) 440-8020


Eleganceby design!Ward -Beck has created the R1000...a unique masterpiece oftechnical efficiency and elegantsimplicity.In this exceptional radio consolelegendary Ward -Beck quality isavailable at a price one wouldexpect to pay for much lessdistinguished company!The R1000- ideally suited tosmaller studios or newsapplications-is an excellent wayto experience the finest engineeringon a modest budget.

First by Design.

Ward -Beck Systems Ltd., 841 Progress Avenue, Scarborough, Ontario, Canada M1H 2X4.Tel:(416)438-6550.

Ward -Beck Systems Inc., 6900 East Camelback Road, Suite 1010, Scottsdale, Arizona 85251.

38V/38M1 1P1 Nr - World Radio History

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