A second-hand CB can be a cracking buy, particularly when you need a dependable set for a 4×4, farm vehicle, classic car or occasional convoy use. But not all used CB radios worth buying are bargains. A cheap radio with a tired microphone, damaged power lead or a history of high-SWR use can soon cost more than a properly tested replacement.
The sensible approach is to buy the condition and suitability of the radio, not the badge on the front or the story from the seller. A good used set should be legal for UK use, complete enough to install properly and matched to the way you intend to use it.
Are used CB radios worth buying?
Yes, provided you know what you are looking at. Many CB radios were built to last, and a clean, unmodified set from a recognised manufacturer can give years of service. Used equipment also opens the door to better-spec radios – such as models with SSB, RF gain, ANL noise reduction, a clearer signal meter or a proper external speaker socket – for less than the cost of a new equivalent.
The trade-off is that second-hand kit rarely comes with the certainty of a new radio. You may not get a warranty, an original manual, a mounting cradle or the correct power lead. More importantly, you cannot judge a CB by whether it powers up. A radio can light up, receive a nearby transmission and still have a weak transmitter, intermittent controls or a fault hidden inside the microphone wiring.
For a straightforward vehicle installation, a current, legal 40-channel FM CB in clean condition is often the safest used purchase. If you travel in organised 4×4 groups or use your CB around other motorists, make sure the channel coverage and mode suit the people you will actually be talking to. There is little point buying an unusual export or vintage set because it looks interesting if it does not fit your practical needs.
The used CB radios worth buying first
The strongest candidates are radios from established CB manufacturers with a reputation for reliable controls, available accessories and sensible vehicle mounting. Look for a standard UK-spec radio with clear channel selection, a working squelch control and an intact microphone. Compact radios are useful where dashboard space is tight, while larger traditional sets can be easier to operate with gloves on or when travelling over rough ground.
A radio with FM and AM can offer useful flexibility, while an SSB-capable model may appeal to experienced users looking for more range when conditions allow. That does not automatically make SSB the right choice for every driver. It is more involved to use, costs more, and is unnecessary if your main job is keeping a convoy together over a few miles.
Older UK 27/81 FM sets can still be attractive because they are simple, familiar and often very solidly made. Check that the set is appropriate for current UK licence-exempt CB rules and has not been altered. Very old rigs, especially imported or modified examples, deserve extra caution. Frequency expansion, extra power modifications and altered channel blocks may make a radio unsuitable for legal everyday operation.
A clean used radio from Cobra, President, Midland or another recognised specialist name is generally a safer bet than an anonymous set with impressive-looking claims. That said, condition still wins. A well-kept basic radio is a better purchase than a neglected top-end model.
What to inspect before handing over money
Ask for clear photographs of the front, rear panel, microphone plug, power lead and mounting points. If you are buying in person, test the radio rather than taking a seller’s word for it. Five checks will catch many expensive mistakes:
- Power and display: The radio should power on without flickering, losing its memory or producing an obvious burning smell. Check every display segment, backlight and channel digit.
- Controls: Turn the volume, squelch, RF gain and clarifier controls slowly. Scratchy pots are common on older equipment, but controls that cut audio completely or feel loose may need repair.
- Receive audio: Connect a suitable aerial or dummy load where possible and listen across several channels. Audio should be clear, and the squelch should open and close normally.
- Transmit function: A proper test on an SWR or power meter is ideal. At minimum, confirm that the transmit indicator works and that the radio has not been used with a badly mismatched aerial.
- Microphone and lead: Flex the cable gently near the plug and microphone body while receiving and transmitting. Intermittent microphones are one of the most common faults in used CB equipment.
Do not overlook the rear of the set. Check the antenna socket for looseness, corrosion or signs that somebody has forced the wrong connector into it. Inspect the fused power lead too. A homemade lead is not always a problem, but twisted wires, taped joins and an incorrect fuse are reasons to walk away.
The aerial matters more than the bargain radio
A £30 radio fitted to a properly mounted and tuned aerial will normally outperform a £150 radio attached to a poor aerial installation. This is where many second-hand purchases go wrong. The radio may be fine, but the buyer reuses an old aerial with corroded mounts, crushed coax or no proper earth plane, then blames the set for poor range.
If a used radio is sold as a bundle, inspect the aerial with the same care as the transceiver. A whip that is straight and clean may still have water in the base or damaged coax. Magnetic mounts can be useful for temporary use, but their cable often suffers where it passes through a door or tailgate. Permanent mounts need a sound electrical ground where the aerial design requires one.
Budget for an SWR meter if you do not already have one, or arrange for the installation to be checked. Never keep transmitting into an aerial with a high SWR. It reduces performance and can damage the radio’s output stage. A seller claiming that an aerial is “pre-tuned” is not a substitute for checking it on your own vehicle.
When a new CB is the better buy
A used CB is not automatically the economical choice. A new entry-level radio can make more sense when you are new to CB, need a complete kit, or want straightforward support if there is a problem. It also removes uncertainty over legal specification, hidden faults and missing fittings.
The price gap matters. If a used radio is only modestly cheaper than a current new model, the saving may not justify the risk. Once you add a new microphone, power lead, mounting bracket or repair bill, the apparent bargain disappears. For a working vehicle or regular off-road use, reliability is often worth more than owning an older model with extra features you will never use.
On the other hand, a properly tested used radio can be ideal if you already have a sound aerial system and understand what the controls do. It can also be a sensible route to a higher-quality model that is no longer sold new.
Questions worth asking the seller
Before buying, ask whether the radio has been tested on transmit as well as receive, whether it has ever been modified, and why it is being sold. Find out exactly what is included: microphone, bracket, screws, power lead, mounting hardware and original box can all affect value.
Ask whether the set has been used in a smoking vehicle, stored in a damp garage or removed from a lorry or agricultural machine. Dust is usually manageable. Damp, corrosion and nicotine residue can point to a much harder clean-up job and potential internal trouble. If the seller cannot answer basic questions or avoids showing the radio working, treat that as useful information.
Buy for the installation you have
The right used CB is the one that fits your vehicle, your aerial and the people you communicate with. A compact legal FM set with a good microphone and a correctly tuned aerial will serve most UK drivers far better than an oversized, modified radio bought simply because it was cheap.
If you are unsure about compatibility, keep the radio details and photographs before you buy, then get specialist advice on the aerial connection, power supply and mounting arrangement. A few checks before fitting can turn a used purchase into a reliable part of your vehicle kit rather than another item waiting on the garage shelf.