GMRS (General Mobile Radio Service)

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).