PCM55.pdf
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PCM55 The PCM55 is Pico Macom’s legendary workhorse—a cost effective pro- fessional grade modulator designed to provide adjacent channel compatibility and FCC Docket 21006 for frequency accuracy . This modula tor prov ides a full 55dBmV output from sub-band channels T8 through T11, CATV channels 2 to 22 including channels 95 to 99 while accommodating HRC and IRC offset fre quen cies (11.75- 216MHz). Modulate d channels may be inse rted on any unused channel within a closed circuit MA TV or SMA TV system. High quality external modulation and RF level controls assure years of reliable operation. The modulator is shipped with all internal adjustments preset. Pico Macom backs up this product with its industry leading 5-year limited warranty. PCM55 216 MHz S in gl e Ch ann el C rys tal Con tro ll ed A/V Mo du la tor 2 16 MH z S in gl e Ch an ne l C ry s tal Con t ro l l ed A /V M od u l at or www.picomacom.com Headend & Electronics 355 Parkside Drive San Fernando, CA 91340 Ph: 818-4 93-4300 T oll Fr ee: 800-4 21-6511 Fax: 818-4 93-4433 A-3 Rev. 12/02 31-Channel Range 11.75- 216 MHz (CATV T8-T11, 2-22, 95-99) Full 55dBmV output for optimum carrier-to-noise performance In-band carrier-to-noise ratio 60 dB provides superior picture quality Highly accurate cr ystal controlled oscillator for reliable drift-free operation Superior vestigial sideband filter- ing improves adjacent channel and overall sy stem performance Front panel test point for easy RF level system monitoring IRC and HRC offset available for frequency settings in systems using offset channels Auxiliary AC outlet for convenience UL Approved Optional PAL format channels available
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PCM55
The PCM55 is Pico Macoms legendary workhorsea cost effective pro-fessional grade modulator designed to provide adjacent channel compatibilityand FCC Docket 21006 for frequency accuracy. This modulator provides afull 55dBmV output from sub-band channels T8 through T11, CATV channels2 to 22 including channels 95 to 99 while accommodating HRC and IRC offsetfrequencies (11.75-216MHz). Modulated channels may be inserted on anyunused channel within a closed circuit MATV or SMATV system. High qualityexternal modulation and RF level controls assure years of reliable operation.The modulator is shipped with all internal adjustments preset. Pico Macombacks up this product with its industry leading 5-year limited warranty.
PCM55216MHz Single Channel Crystal Controlled A/V Modulator
216MHz Single Channel Crystal Controlled A/V Modulator
www.picomacom.com
Headend & Electronics
355 Parkside Drive San Fernando, CA 91340Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433
A-3Rev. 12/02
31-Channel Range 11.75-216 MHz (CATV T8-T11, 2-22, 95-99)
Full 55dBmV output for optimumcarrier-to-noise performance
In-band carrier-to-noise ratio 60 dB provides superior picture quality
Highly accurate crystal controlledoscillator for reliable drift-freeoperation
Superior vestigial sideband filter-ing improves adjacent channeland overall system performance
Front panel test point for easy RFlevel system monitoring
IRC and HRC offset available forfrequency settings in systemsusing offset channels
Auxiliary AC outlet for convenience
UL Approved
Optional PAL format channels available
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PCM55
Channels: 31 Channels (CAVT T8-T11, 2-22, 95-99) FCC Docket 21006 offsets, HRC & IRC offsets
Frequency Range: 11.75 - 216 MHzOutput Level: 45 to 55 dBmVOutput Impedance: 75 ohmsAudio/Video Ratio: Adjustable -7 to -18dB
below video carrierFrequency Stability: 5 kHz in aeronautical band
Conforms to FCC Docket 21006Spurious Output: 60dB below video carrier
with A/V ratio @ -15 dB
Input Level: 1.0 V p-p min for 87.5% mod.Input Type: Clamped video neg. syncVisual C/N: 60 dB @ 4 MHz BWFrequency Response: 1.5 dB (30 Hz to 4.2 MHz)Hum and Noise: -60 dB @ 87.5% modulation
Meets FCC group delay predistortion correction requirement forcolor transmission.
Power Input: 108 to 125 VAC 60 Hz 20WOperating Temperature: -10C to 50CDimensions: 19(L) x 3(D) x 13/4(H)Weight: 3.8 lbs.Connectors: F Type
Baseband Input Impedance: 600 ohms unbalancedBaseband Input Level: 0.5 V p-p for 25 kHz peak dev.Pre emphasis: 75 microsecondFlatness: 1.5 dB (50 Hz to 15 kHz)
RF Video
Audio General
Product Specifications
216MHz Single Channel Crystal Controlled A/V Modulator
AUDIO VIDEO MODULATORPCM55 TESTPOINT R.F.OUTPUT
AUDIOMODULATION AURAL
LEVEL ADJUST LEVEL ADJUST
VIDEOMODULATION
-30 dBCH-
VIDEO IN120VAC
60Hz 10W
600W MAX
AUDIO IN
RF OUT
Front View
Rear View
Ordering InformationPCM55 Channel
www.picomacom.comA-4
Rev. 12/02355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433
Specifications Subject to Change Copyright 2003 Pico Macom, Inc.
