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    GMRS (General Mobile Radio Service) is a licensed radio service.

    GMRS consists of 16 UHF channels on FM, plus 7 channels that are shared with FRS.

    The maximum allowable power for a GMRS radio is 50 watts. The GMRS channels which are shared with FRS are limited to 5 watts of power.

    The use of repeaters is allowed on GMRS. Most GMRS repeaters use CTCS (Control Tone Coded Squelch).

    GMRS Frequencies

    The frequencies assigned solely to GMRS are:

    Designator Simplex or Repeater Output Repeater Input
    550 462.550 MHz 467.550 MHz
    575 462.575 MHz 467.575 MHz
    600 462.600 MHz 467.600 MHz
    625 462.625 MHz 467.625 MHz
    650 462.650 MHz 467.650 MHz
    675 462.675 MHz 467.675 MHz
    700 462.700 MHz 467.700 MHz
    725 462.725 MHz 467.725 MHz

    The frequencies which GMRS shares with FRS are:

    Designator Frequency FRS Channel
    5625 462.5625 MHz 1
    5875 462.5875 MHz 2
    6125 462.6125 MHz 3
    6375 462.6375 MHz 4
    6625 462.6625 MHz 5
    6875 462.6875 MHz 6
    7125 462.7125 MHz 7

    462.675 is the unofficial GMRS channel for emergencies and assistance.

    GMRS Licensing

    GMRS licenses are good for five year and cover the licensee and his or her family. The GMRS license fee is $75.

    The apply for a GMRS license, use the FCC's Universal Licensing System.

    Additional Reading on GMRS

    For official information on GMRS, visit the FCC's page on General Mobile Radio Service (GMRS).

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    One comment
    1. Michael

      19 September, 2011 at 12:18 am

      Do you have a frequency crystal for 467.750 Mhz?  Please advise.

      Reply
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