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Can Car Adapters Legally Transmit on 87.9 MHz?

Can Car Adapters Legally Transmit on 87.9 MHz?

Fred Lass, director of engineering at WRGB in Schenectady, N.Y. has posed an interesting question. Can low-power FM transmitters being used with iPods or after market XM-Radio receivers legally transmit on 87.9 MHz? He noticed articles recommending the use of 87.5, 87.7 or 87.9 MHz to avoid interference from (and to) FM radio stations. Channel 6 TV stations, with an 87.75 MHz audio subcarrier, also fall in this part of the spectrum. Car radios and nearby home receivers can receive these mini-transmitters.

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