Two different kinds of radio
PMR446 uses the 446 MHz band and is commonly found in compact handheld walkie-talkies. CB radio uses the 27 MHz band and its own style of equipment. A PMR446 handset cannot talk directly to a CB set: the radios are tuned to different frequencies and use different channel plans.
PMR446 is an easy way for a couple of people or a local group to try short-range radio without setting up a base station. CB has a longer history as a hobby service and can involve different radio layouts, antennas and ways of using the equipment. Neither one is automatically “better”; the right choice depends on where you want to use it and who you hope to speak with.
Before comparing specifications, ask what you want to do with the radio. If you want something to hand to a friend for a walk or keep in the car for an event, a pair of PMR446 handsets is quick to get going. If you want radio as a hobby and enjoy choosing antennas and learning equipment, CB may give you more to explore. A local group’s advice is useful because it tells you which service people near you actually use.
Range depends on more than the name on the box
Both services are affected by terrain, buildings, antenna position, interference and equipment. CB’s lower frequencies can behave differently from PMR446, but a larger range is never guaranteed just by choosing one band. A sensible test from your actual location tells you more than a headline distance.
Choosing a first radio
If you want a handheld for a walk, campsite, event or local chat, a UK PMR446 pair is often the simplest option. If you are interested in the CB hobby, ask local CB users about suitable UK equipment and the setup they use. For both services, check that the exact radio and the way it is operated meet the relevant UK requirements. Ofcom’s CB information and licence-exempt radio guidance are useful references.
PMRMap is built around PMR446, so you can look for nearby operators and read the PMR446 beginner’s guide before choosing a handset.