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FRS radios use narrow-band frequency modulation (NBFM) with a maximum deviation of 2.5 kilohertz. The channels are spaced at 12.5 kilohertz intervals. All 22 channels are shared with GMRS radios. Initially, the FRS radios were limited to 500 milliwatts across all channels. However, after May 18, 2017, the limit is increased to 2 watts on ...
Current "hybrid" FRS/GMRS radios will not require a GMRS license for power up to 2 watts, but FRS radios will still not be permitted to use the input frequencies of GMRS repeaters. Any radio exceeding the limits of the new FRS service will be classified as a GMRS radio. [19] On September 30, 2019, it became unlawful in the United States to ...
FRS/GMRS and PMR446 radios are not approved for use in China. FRS band radios may be found in use in China illegally, starting before the Chinese government opened the 409 MHz band to the public. Legal action against such usage is rare, because of the low power and short range of FRS radios. List of China Public Radio Service Channels:
(a) To develop the use of personal radio services as an additional source of communications for emergencies, disasters, and as an emergency aid to individuals; [1] (b) To establish 24-hour volunteer monitoring of emergency calls, particularly over officially designated emergency frequencies, from personal radio service operators, and report such calls to appropriate emergency authorities; [1]
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]
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)
The NOAA broadcasts weather warnings and forecasts as the National Weather Radio (NWR) across seven public radio frequencies: 62.400 megahertz, 162.425 MHz, 162.450 MHz, 162.475 MHz, 162.500 MHz ...
Icom manufactures two way radios and receivers for use in marine applications, Airband, amateur radio applications, land mobile applications, [7] and FRS / GMRS applications. Some radios made by Icom are compatible with Motorola and SmarTrunk trunking systems.
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