Please note that the use of American FRS and GMRS walkie-talkies in the United Kingdom is not legal, and could cause interference to licenced radio users. There are many "combination" FRS/GMRS walkie-talkies on the market that have all 22 of the channels listed below, in MHz: GMRS uses the same channels as FRS 1-7, and then adds a further 7 channels numbered 15-22 below. LIST OF CTCSS CHANNEL NUMBERS AND AUDIO TONES American FRS & GMRS Radio FrequenciesįRS has 14 channels, numbered 1-14 below. Within the UHF band lie the eight "licence-free" (PMR446) channels, these are as follows, in MHz: UK Business UHF Radios use frequencies from 400 - 470MHz. UHF radio signals are those on frequencies from 300MHz - 3000MHz. UHF (Ultra High Frequency) frequency band Specific channels are used for particular purposes, including for emergencies, ship-to-shore communications etc. ![]() "Marine band" VHF radios used on ships and to communicate between vessels and harbours, bridges, locks etc, use frequencies between 156 - 162MHz. UK Business VHF Radios use frequencies from 136 - 174MHz. ![]() VHF radio signals are those on frequencies from 30MHz - 300MHz. The units used are usually KHz (kilohertz) and MHz (megahertz). Radio frequencies are expressed in units of Hertz (cycles per second). Radios transmit and receive messages on any of millions of possible frequencies.
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