GMRS radios can have up to 5 watts power output, giving longer ranges than FRS radios. They use frequencies around 462 and 467MHz. Radios that combine the FRS (see above) and GMRS channels are widely sold. GMRS (General Mobile Radio Service) This is an American government standard for UHF walkie-talkies that can be bought and used in the USA and Canada with no restrictions, although a licence is supoosed to be obtained from the FCC (Federal Communications Commission). The use of FRS radios in the UK and Europe is not legal, although not uncommon, due to people purchasing American radios whilst on holidays and bringing them home, and also buying them online, without realising the legal issues involved. ![]() FRS radios have 14 channels, and use frequencies around 462 and 467MHz. FRS (Family Radio Service) This is an American government standard for short-range UHF walkie-talkies that can be bought and used in the USA and Canada with no restriction and no licence required. In the United Kingdom the same role is carried out by OFCOM. FCC (Federal Communications Commission) The American government organisation that oversees and controls access to the radio airwaves. CTCSS codes are sometime referred to as "privacy codes" and also (somewhat inaccurately) as "sub channels". It allows several groups of radio users to make use of the same channel without constantly hearing messages not intended for their group. CTCSS (Continuous Tone Controlled Squelch System) A method of making most use of a given radio channel, where a group of radios are set to transmit an inaudible tone with every transmission, and at the same time to only receive messages with the same tone set. Charging usually takes 1-3 hours for a totally discharged battery. Users of larger numbers of walkie-talkies often have multi-slot chargers that can charge six or more radios at one time. The charger is plugged into a wall socket, and usually consists of a power transformer, and then the actual charging cradle that you place the radio into. ![]() Charger This is the electrical device into which you place a walkie-talkie to recharge its battery pack. Please do not confuse a "base station" with a walkie-talkie charger unit, as described below. A base station is often a more powerful radio with longer range than a small, battery powered walkie-talkie. Base Station The term "base station" refers to a radio that is used from a fixed location, usually using mains electrical power and a permanent or semi-permanent antenna. ![]() Most walkie-talkie battery packs can be charged while attached to the radio or separately, thus allowing users to have spare batteries on charge, ready to be quickly swapped for discharged ones without having to wait for batteries to recharge. It usually makes up the rear of the body of the radio, and can be detached using some kind of catch. Battery Pack All professional walkie-talkies come with a rechargeable battery pack. This handy guide will help to explain what some terms used in the world of radios and radio communications actually mean. Radio Communications Glossary - Technical Terms Explained
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