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2. Raymond A. Litke - Wikipedia

   en.wikipedia.org/wiki/Raymond_A._Litke

   Raymond A. Litke (1920-1986) was an American electronic engineer, the inventor of a practical wireless microphone, and the first to patent the wireless microphone.He was born and raised on a farm near Alma, Kansas, but spent most of his adult life in San Jose, California.

3. List of North American broadcast station classes - Wikipedia

   en.wikipedia.org/wiki/List_of_North_American...

   Unlicensed: not allowed except for medical telemetry, and certain wireless microphones; The LPTV (low-power television) service was created in 1982 by the FCC to allocate channels for smaller, local stations, and community channels, such as public access stations.

4. Wireless microphone - Wikipedia

   en.wikipedia.org/wiki/Wireless_microphone

   A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...

5. WRFD - Wikipedia

   en.wikipedia.org/wiki/WRFD

   WRFD (880 kHz) is a commercial AM radio station licensed to both Columbus and Worthington, Ohio.It is owned by the Salem Media Group and broadcasts a Christian talk and teaching radio format.

6. WCOL-FM - Wikipedia

   en.wikipedia.org/wiki/WCOL-FM

   WCOL-FM (92.3 MHz) – branded 92.3 WCOL – is a commercial country music radio station licensed to Columbus, Ohio, serving the Columbus metro area.Owned by iHeartMedia, the WCOL-FM studios are located in Downtown Columbus, while its transmitter resides northwest of downtown on the WBNS-TV tower.

7. WUFM - Wikipedia

   en.wikipedia.org/wiki/WUFM

   WUFM (88.7 FM, "RadioU") is a non-commercial radio station licensed to Columbus, Ohio. [1] The station retransmits its signal to several FM stations and FM translators nationwide including KRQZ, a full-service FM station licensed to Lompoc, California, and WPRJ, a full-service FM station licensed to Coleman, Michigan.