General Mobile Radio Service (GMRS)

Release on : 2021-07-05

 Table Notes

(1) Shared FRS and GMRS simplex.

(2) Shared FRS and GMRS simplex; GMRS repeater output.

(3) GMRS repeater input. The output frequency of this repeater input is the input frequency minus 5 MHz.

(4) FRS transmissions are limited to bandwidth of 11 kHz with a transmitter deviation of +/- 2.5 kHz. Channels are on 12.5 kHz centers.

(5) GMRS transmissions may have a bandwidth of 16 kHz with a transmitter deviation of +/- 5.0 kHz. Channels are on 25 kHz centers.

(6) GMRS transmissions are limited to a bandwidth of 11 kHz with a transmitter deviation of +/- 2.5 kHz. Channels are on 12.5 kHz centers.

(7) National GMRS calling channel (CTCSS tone 141.3 Hz).

   In 2017, the FCC updated the GMRS by allotting additional interstitial channels in the 467 MHz band, increased the license term from 5 to 10 years, allowed transmission of limited data applications such as text messaging and GPS location information and made other updates to the GMRS rules to reflect modern application of the service.
    In 2017, the FCC expanded GMRS to also allow short data messaging applications including text messaging and GPS location information.
    The General Mobile Radio Service (GMRS) is a licensed radio service that uses channels around 462 MHz and 467 MHz. The most common use of GMRS channels is for short-distance, two-way voice communications using hand-held radios, mobile radios and repeater systems.Services that provide functionality similar to GMRS include the Citizens Band Radio Service (CBRS), the Family Radio Service (FRS) and the Multi-Use Radio Service (MURS).
    The GMRS is available to an individual (one man or one woman) for short-distance two-way communications to facilitate the activities of licensees and their immediate family members. Each licensee manages a system consisting of one or more transmitting units (stations.) The rules for GMRS limit eligibility for new GMRS system licenses to individuals in order to make the service available to personal users. (Some previously licensed non-individual systems are allowed to continue using GMRS.)
    In 2017, the FCC expanded GMRS to also allow short data messaging applications including text messaging and GPS location information.
   Regarding the use of walkie-talkies, GMRS FRS PMR MURS CBRS    

To transmit (make a call), press and hold the PTT (“Push to Talk”) button. Hold the radio 5 inches from your mouth and speak normally. Hold it slightly sideways so you are speaking across the microphone to minimize overdriving it.

The TX icon will appear continuously on the LCD Display while transmitting.

To receive, release the PTT button. When you release the PTT button, a “roger beep” automatically signals others that you have stopped transmitting and are ready for a response.

The Red will appear on the LED when your radio is receiving a transmission. If you cannot hear the transmission well, turn your volume knob clockwise.