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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.
All 22 Family Radio Service (FRS) frequencies are shared with GMRS, and users of the two services may communicate with each other. With the exception of FRS channels 8 through 14, GMRS licensees may use higher power radios with detachable or external antennas.
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 ...
It can have a repeater input frequency of 467.675 MHz, and a tone squelch of 141.3 Hz. After FCC deregulation of simplex FRS/GMRS radios, FRS users may transmit up to 2 watts on the GMRS emergency channel 20 (462.675 MHz) with 141.3 Hz CTCSS, or channel 20-22. MURS: 151.940 MHz (only available in the United States)
These do not afford privacy or security, but serve only to reduce annoying interference by other users or other noise sources; a receiver with the tone squelch turned off will hear everything on the channel. [10] GMRS/FRS radios offering CTCSS codes typically provide a choice of 38 tones, but the tone number and the tone frequencies used may ...
Channels 4 and 5 may use either "wideband" FM (5 kHz deviation; 20 kHz bandwidth) or "narrowband" FM. [5] All five channels may use amplitude modulation with a bandwidth up to 8 kHz. [ 6 ] MURS falls under part 95 and was not mandated for narrow-banding, such as those of Part 90 in the public service bands by January 2013.
Correction to GMRS power level 462 MHz interstitial (2 to 5 watts) 22:01, 24 March 2022: 512 × 640 (12 KB) Mckoss: Add solid (white) background - instead of transparency. 00:28, 20 March 2022: 512 × 640 (12 KB) Mckoss: Added key/legend: 23:49, 19 March 2022: 512 × 640 (11 KB) Mckoss: Corrected power limits for FRS above 467 MHz: 23:40, 19 ...
Cable-ready channels 6, 95, 96, and 97 have audio carriers which overlap FM radio stations (87.7, 95.7, 101.7 and 107.7). Cable-ready channels 57 to 61 overlap the 70cm amateur radio band and can be used for amateur television. Cable-ready channel 64 is within the Family Radio Service and General Mobile Radio Service (GMRS) band.
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