Ennes-Hartford - May2011 · SBE Ennes Workshop ‐Hartford –May 2011 John Bisset Tieline...
Transcript of Ennes-Hartford - May2011 · SBE Ennes Workshop ‐Hartford –May 2011 John Bisset Tieline...
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Disaster Planning Using IP 1
Keeping It Going in the Real World SBE Ennes Workshop ‐ Hartford – May 2011John Bisset Tieline Technology Indianapolis, IN
5/23/2011 1
Our Vision
• Station engineers must search for a reliable means of backup to a variety of off air emergencies
• One solution is the internet
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Goal and Objective
• The goal is more reliable operation
• The objective is to involve your staff, the GM, and even the PD and air talent in identifying weak links
• Keep the station management informed!
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Air Staff Suggestions
• Having a sit‐down with the GM and PD and the Air Staff may expose you to scenarios you never considered
• Getting their point of view lets you plan and attack a variety of potential problems
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Starting at the Studio
• What kind of backup facilities?
• Can a spare Production room be put on the air?
• If so, HOW?5/23/2011 5
Expecting Air Staff to Move Cables Is A Chance Not Worth Taking
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The best wiring is worthless if staff can’t work around it
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So consider a simple switcher and label. label, label!
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Labeling Everything Speeds Troubleshooting Too
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Adopt Simple Operating Procedures• Develop a simple procedure for catastrophic loss of the automation system or satellite feedloss of the automation system or satellite feed
• Write it down and insure that all staff can follow the written instructionsfollow the written instructions
• Laminate the pages and post conspicuously5/23/2011 10
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The STL – Another Form of Failure
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Today’s Situation
• In addition to implementing redundancy,
Stations are being squeezed to save money – especially with infrastructure costs
• Line costs tower leases congested RFLine costs, tower leases, congested RF paths, and elimination of services must be considered
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Alternative STL Solutions
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Consider Remote Gear For Backup
• It will keep you on the air, and fill in should you lose your RF STL
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Tieline has had customers report using simple POTS codecs as a
reliable backup STL
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Remember to Think Out of the Box
• Catastrophic failure should force you to p yconsider every option
• No ideas are “off limits”
• This is where the staff discussions are handy5/23/2011 16
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Another Choice is Low‐Cost IPThis is the choice of many group
b d tbroadcasters
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Today’s Perception• IP could be considered, but it’s not reliable enough for broadcast STLreliable enough for broadcast STL
• Broadcasting over IP is complicated
• You need to be an IT Expert to broadcast over IP
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Today’s Solution!
IP i li bl f b d t STL• IP is reliable for a broadcast STL
• Broadcasting over IP is easy and not complicated
• Broadcasters have sufficient knowledge to configure and run these systems
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So What Are the Concerns with IP?
• Audio Quality – there can be a tradeoff between quality and reliability of an IP connection
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So What Are the Concerns with IP?
• Transport Reliability – Tieline recommends using wired broadband connections, that are not being shared for best reliability
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So What Are the Concerns with IP?
• Adequate Bandwidth – order a high speed, business class service with a downlink speed of at least 256kbps, and an uplink speed of at l 256kbleast 256kbps
• Faster installations provide greater reliability
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And the Biggest Concern
• Coding Algorithms
– Important to ask what is used – some deliver poor quality and artifacts
– Remember, you get what you pay for!
Ti li ’ M i d M i Pl Al ith id– Tieline’s Music and Music Plus Algorithms provide superior performance, as do AAC and APT
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Recommendations to reduce concerns
• Select a Quality Internet Service Provider (ISP) – “you get what you pay for” in service, too
• Tier 1 Service Providers are the best choice as their infrastructure makes up the internet “backbone”
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Recommendations to reduce concerns
• Use the same ISP at both the Studio and Transmitter site
• The same provider can increase reliability, audio bandwidth, and reduce audio delay
• Second/third tier providers sublease• Second/third tier providers sublease bandwidth. The multiple switch hops can cause reliability issues
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Recommendations to reduce concerns
• Do not share service with PC’s or company networks, use a dedicated DSL/ADSL line
• Business plans provide better performance than residential or domestic plans
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Recommendations to reduce concerns
• Use good quality equipment to connect your codecs to the Internet
• Does your codec have Quality of Service features, such as a jitter buffer or forward
i ?error correction?
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Recommendations to reduce concerns
• Insure your infrastructure is designed for media streaming and not domestic usage
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IP Benefits in STL Applications
• The technology can cover multi‐site facilities
• More expensive Satellite, RF, or Switch p , ,56/ISDN circuits can be eliminated
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IP can also be used to send the same programming to multiple
sitessites
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IP Benefits in STL Applications
• Both IP hardware and network infrastructure are cheaper
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Talk About Cheap Solutions
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The Report‐IT iPhone app offers LIVE 15kHz audio
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In a pinch!
• The iPhone can be equipped with an XLR adapter and attenuator to interface to broadcast gear
• Granted, it’s 15kHz mono, but in a pinch, you are on the air
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Things to Keep in Mind
• There are lots of IP solutions
• Here are some considerations
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Equipment Considerations
• You’ll want to insure the equipment is IPV6 Compatible
• The present internet (IPV4) is running out of addresses
• IPV6 will provide billions of new IP addresses and will involve new hardware
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Equipment Considerations
• You’ll want ease of use – a front panel display rather than having to connect a computer to see what’s going on or to make adjustments
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Equipment Considerations
• Diagnostics are also important – Again, tools that can be accessed from a front panel screen, without having to connect a computer
• Even something as simple as front panel audio metering is helpful
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Equipment Considerations
• Other useful features include QoS (Quality of Service) features such as
– Forward Error Correction
– Jitter buffer
– Bit Rate monitor
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Equipment Considerations
A Backup SD/SDHC Card SlotA Backup SD/SDHC Card Slot
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USB and SD/SDHC keeps you on the air
• A lot of broadcast equipment is providing this kind of auxiliary backup
• Specify it and use it – it’s one more defense against being off the air
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So, if I choose IP
Where do I start?
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Audio over IP Expert
• Tieline provides a free tutorial manual that can be downloaded. For your copy of this reference guide, go to:
• www.ipaudioexpert.com
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Internet Reference Sites
• http : //en.wikipedia.org/wiki/Interenet_backbone
• Lists major internet service providers that make up the internet backbone
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Internet Reference Sites
• For more detailed information on transitioning to IPv6 check out the summary and reference papers on IPv6 at www.Wikipedia.com
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Internet Reference Sites
• http://www.speedtest.net/index.php
• A site that will test internet speed – connect your computer to this link if low bandwidth is suspected
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Troubleshooting Tip
• Every computer and IP codec has an internal IP address of 127.0.0.1
• This provides a loopback test, allowing the audio to be looped from the encoder to the d ddecoder
• Listen to the headphone output, if you hear audio, the problem is the network
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Suggested Reading
• TCP/IP Jumpstart 0 Internet Protocol Basics
• Author: Andrew G. Blank
• Publisher: Sybex, www.sybex.com
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Audio over IP is the Future
• Analog leased line and even ISDN are being phased out in most regions
• Regular DSL data plans are sufficient to deliver 22kHz stereo audio
• A variety of equipment is turning to IP – audio consoles, even transmitters!
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• Now let’s look at some other ways to keep your station going
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It Never Hurts to Label Lines –even with a Sharpie!
Clearly Label All DisconnectsUsing a Brother P-Touch®
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Or Gaffer’s Tape
Walk Your Site Quarterly
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A Forest Doesn’t Spring up Over Night
Exposed Ground Radials – More Fines, Less Signal
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Why it’s important to supervise contractors
WANTED: Qualified Site Manager
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Coax Is Not a Climbing Peg!
AM ATU Maintenance
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ATU Maintenance• Loose connections cause heat buildup
• Twice a year tighten all bolts and nuts
• Every other year, remove hardware and clean – especially if parameters are unstable
• Mark with a Sharpie®, the location of coil taps or rollers in variable coils
• Plug all holes, keep inside clean
It’s important to seal all entries
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Expanding Foam Combined With Stainless Steel Wool Inside ATU
Why It’s Important to Seal ATU’s
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A Contactor With Built-in Arc Detector
Don’t Paint the Spark Gap!
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Loose Slats = FCC Fine
Satellite Feed horns – homes for insects and even birds!
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The Opening Protects Nests
A 1-Liter Water Bottle Solution!
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Wire Labels Under Clear heat shrink
Impress Your Manager With an Organized Workbench!
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Another Organized Shop
Workbench Based on Kindorf®(He got it one piece at a time!)
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Every Workbench Needs Adapters
Use a Clipboard for a Third Hand
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Screw-in Hooks Organize Manuals/schematics
Check Parameters Quarterly
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Don’t Forget Consultant Sites
G h b k C• www . Grahambrock . Com– Online FCC Apps, newsletter and links
• www . Munn-Reese . ComRF Newsletter– RF Newsletter
• www . CavellMertz . Com– FCC Info and new flag service
Hoods keep water out of buildings but may attract insects
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Generator Ice Shield
Pleated Air Filters Trap the Dirt
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Don’t Forget Microprocessor Battery Backups – Inside
EquipmentEquipment
Post a “No Digging” Sign Around Your AM Site
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Add Crushed Stone to the Transmitter Building Perimeter
An Important Investment to Any Studio or Transmitter Site
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Add Emergency Lighting
Transmitter site “gotta haves”• A spare fan for your exciter
S f• Spare fuses
• Klein Kleaners – moistened towels/baby wipes
• Trouble lamp and spare bulbs
• First Aid Kit – well stockedFirst Aid Kit well stocked
• Bubble wrap – protects your knees, and “grabs” fallen parts when placed in the bottom of equipment rack where you’re working
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A Great Idea Gone Bad
At Your Service
John Bisset and Mary Ann Seidler
Business Development Executives
Tieline Technology
317‐845‐8000
www.Tieline.com5/23/2011 90