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2. General Mobile Radio Service - Wikipedia

   en.wikipedia.org/wiki/General_Mobile_Radio_Service

   GMRS radios are typically handheld portable (walkie-talkies) much like Family Radio Service (FRS) radios, and they share a frequency band with FRS near 462 and 467 MHz. Mobile and base station -style radios are available as well, but these are normally commercial UHF radios as often used in the public service and commercial land mobile bands.

3. Family Radio Service - Wikipedia

   en.wikipedia.org/wiki/Family_Radio_Service

   In May 2017, the FCC significantly revised the rules for combination FRS/GMRS radios. Combination radios will be permitted to radiate up to 2 watts on 15 of the 22 channels (as opposed to 0.5 watts), and all FRS channels are now considered shared with the GMRS service.

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. Radio Emergency Associated Communication Teams - Wikipedia

   en.wikipedia.org/wiki/Radio_Emergency_Associated...

   REACT safety communications for parades, runs/walks, and other community events also became prominent. REACT Teams have added amateur, FRS, GMRS, Multi-Use Radio Service (MURS), Trunked radio systems, and business band radio to their public service capabilities.

6. International distress frequency - Wikipedia

   en.wikipedia.org/wiki/International_distress...

   GMRS: 462.675 MHz is a UHF mobile distress and road information calling frequency allocated to the General Mobile Radio Service and used throughout Alaska and Canada for emergency communications; sometimes referred to as "Orange Dot" by some transceiver manufacturers who associated a frequency with a color-code for ease of channel coordination ...

7. 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). [11]