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  2. General Mobile Radio Service - Wikipedia

    en.wikipedia.org/wiki/General_Mobile_Radio_Service

    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.

  3. Pirate radio - Wikipedia

    en.wikipedia.org/wiki/Pirate_radio

    Pirate radio is a radio station that broadcasts without a valid license, whether an invalid license or no license at all. [1] In some cases, radio stations are considered legal where the signal is transmitted, but illegal where the signals are received—especially when the signals cross a national boundary.

  4. Personal radio service - Wikipedia

    en.wikipedia.org/wiki/Personal_radio_service

    For a time dual-standard FRS and General Mobile Radio Service (GMRS) radios were available, that could be operated without individual licensing on the FRS channels, but which required a license to operate on the GMRS frequencies at a power level above the FRS standard. In May 2017 the regulations were changed so that FRS service included ...

  5. Project 25 - Wikipedia

    en.wikipedia.org/wiki/Project_25

    Several hand-held Project 25 radios used around the world. Project 25 (P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1]

  6. List of radio stations in Oklahoma - Wikipedia

    en.wikipedia.org/wiki/List_of_radio_stations_in...

    The following is a list of FCC-licensed radio stations in the U.S. state of Oklahoma, which can be sorted by their call signs, frequencies, cities of license, licensees, and programming formats. List of radio stations

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  8. Continuous Tone-Coded Squelch System - Wikipedia

    en.wikipedia.org/wiki/Continuous_Tone-Coded...

    GMRS/FRS radios offering CTCSS codes typically provide a choice of 38 tones, but the tone number and the tone frequencies used may vary from one manufacturer to another (or even within product lines of one manufacturer) and should not be assumed to be consistent (i.e. "Tone 12" in one set of radios may not be "Tone 12" in another).

  9. Station identification - Wikipedia

    en.wikipedia.org/wiki/Station_identification

    Land mobile two-way (including public safety and business mobile) require station identifications by call sign. In the case of the GMRS service, this is to be done by each station in a similar manner to the amateur practice, though the time limit is fifteen minutes. Repeater systems used in both the land mobile and amateur radio services often ...