Chris Lyons of Shure responds to our 900 MHz microphone posting
“If your wireless mic use is in the U.S, then using a 900 MHz system trespasses on spectrum licensed for use by radio stations to transmit their signals from the originating studio to the broadcast tower.”
This is only true for systems operating in the 944-952 MHz “STL” band, which is used to transmit signals from broadcast studios to remotely-located transmitter sites. These systems require an FCC license, which is only available to licensed radio and TV broadcast stations.
The vast majority of popular “900 MHz” systems on the market operate in the 902-928 MHz range, which is one of the Industrial-Scientific-Medical or “ISM” bands. A license is not required to operate in this range, and it is available throughout most of North, Central, and South America, making it a useful option for users in these regions.
Chris Lyons
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Thank you , Chris, for adding to the discussion
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Jeff Harrison
-Jeff Harrison is a sound person and special event producer who lives in works in Chapel Hill, NC. His most recent work includes producing professional school commencement exercises for the University of North Carolina.
He can be contacted at jeff@wirelessmic.net
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