Radio Frequency Coordination
Contacting the frequency coordinator protects you...

NY Planner
NY rf Planner: PDF -- Right click to download -- left click to view.
This example shows transmitter distances in miles from the Madison Square Garden venue at 33rd street and Eighth Avenue as well as antenna heights and transmitter power.

Coordination information:

PSA-T series: 
Very usable entry level inexpensive Spectrum analyzer
 

Professional Wireless
Intermodulation Analysis System:
By far the best coordination software available.  15 day demo download free.

Wireless Microphone Theory -- a basic paper provided by the DJ society

100000watts.com  Great site for organized data on TV stations -- yearly fee for use.

FCC database
primary site for licensee information. Output format is not clearly documented  but data most accurate.

Bright and Loud Intermodulation calculator program.

  • The "CHANNEL GUIDE" has an overlay of all the New York and Los Angeles TV stations with general ranges of the wireless systems of many popular wireless manufacturers.  Some channels on this chart with licensed use show as open.  It is my experience, in the specified venues, that these stations are not strong enough to be received and should not cause problems with low power wireless microphones and in ears.

    These charts are only a guide.  Actual RF conditions should be verified in the field by monitoring the frequencies and consulting any other users nearby.

     

Here are manufacturer specific planning sheet PDFs for the NY and LA areas which show the intersection of DTV and Analog TV stations as of 2007.  starting in June 2008 it all changes!
LA NY  
Channel guide and general summary sheet
Audio Technica
Sennheiser UHF
Telex BTR800
Lectrosonic
Shure UC
Sennheiser Evolution
Vega Q700

DOWNLOAD ZIP FILE:  Frequency coordination spreadsheet

This is a simple Excel template for a spreadsheet of frequencies which you are coordinating.  It provides semi-automatic indication of TV channel intersections, and an easy way to validate channel separations.  Along with the spreadsheet is a sample coordination and an instruction sheet.

How to find Longitude and Latitude given an address 

 2009-04-03 01:39 PM


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