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The following is a list of FCC-licensed radio stations in the U.S. state of Michigan, which can be sorted by their call signs, frequencies, cities of license, licensees, and programming formats. List of radio stations
The first police radio systems were implemented in Detroit in 1928, when the Detroit Police Department set up a one-way radio system to broadcast crime information to police cars. [2] The frequency was assigned the call sign "KOP" by the Federal Communications Commission .
The General Mobile Radio Service (GMRS) is a land-mobile FM UHF radio service designed for short-range two-way voice communication and authorized under part 95 of the US FCC code. It requires a license in the United States, but some GMRS compatible equipment can be used license-free in Canada. The US GMRS license is issued for a period of 10 years.
A voice-activated radio-dispatched alarm, or VARDA-alarm, is a type of burglar alarm that, when activated or "tripped", broadcasts the type of the alarm and the transmitter location over the local police radio frequency using a pre-recorded audio message. [1] In 1968, the voice-activated radio dispatched alarm (VARDA), was invented.
The following is a list of AM radio stations transmitting in C-QUAM stereo throughout the world, which can be sorted by their call signs, frequencies, cities of license, country of origin, licensees, and programming formats.
The NRQZ includes portions of West Virginia and Virginia and a small part of Maryland. The National Radio Quiet Zone (NRQZ) is a large area of land in the United States designated as a radio quiet zone, in which radio transmissions are restricted by law to facilitate scientific research and the gathering of military intelligence.
The following is a list of FCC-licensed radio stations in the U.S. state of New York, which can be sorted by their call signs, frequencies, cities of license, licensees, and programming formats. List of radio stations in New York state
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