An Australian, plain-English buying guide. Work out the right type first, understand why watts aren't the whole story, then pick the features that actually earn their keep. Ready to shop? See our ranked picks →
There is no single best two-way radio — only the best one for what you're doing. In Australia the everyday choice is UHF CB: 80 channels in the 476–477 MHz band, a maximum of 5 watts, and no individual licence or fee because approved gear runs under an ACMA class licence. That covers convoys, farms, worksites, camping and keeping a group together off the grid. (A boat is the exception — that's marine VHF, with its own rules, and we cover it below.) Because almost every UHF CB radio shares the same channels and the same 5 W ceiling, the thing that really separates them is the type of radio and a handful of features. Get the type right and the rest is easy.
The single biggest reason two-way radios beat phones outdoors is that they don't need a tower. They talk radio-to-radio, so they keep working in the places where your mobile shows no bars — which is exactly where most people actually want them. Sort out the use case first, and the five steps below will land you on the right radio.
Touring, farm, worksite, hiking or the boat? The job decides everything that follows — settle it before you read a single spec.
Portable and flexible, or fixed with a proper antenna for the best range? This is the most important call you'll make.
UHF CB caps at 5 W and works line-of-sight. Antenna and terrain matter far more than watts, so don't buy on power alone.
Outdoors or on a site? Look for IP67 (dust-tight, brief submersion) and check the real battery life and charging.
Scan, instant Ch 5/35, Bluetooth and app control, smart-key shortcuts. Pay for what you'll use; skip the rest.
Be honest about how you'll actually use the radio, because that decides the type. If you're mostly on foot — hiking, on a site, walking a property, ducking between vehicles — a handheld is the obvious pick. It's self-contained, you can hand one to a mate, and a good 5 W unit does plenty. If the radio lives in a 4WD or work truck and you want the best possible range, a vehicle-mount wins. The trade-off is real and worth understanding.
A handheld's antenna is short and sits low — usually near the ground when you're standing in a gully or behind your vehicle. A vehicle-mount runs the same 5 W but feeds a tall antenna on the roof or bullbar, often a metre or more up and in the clear. Antenna height and a clean path do more for range than any electronics inside the radio, so a mount with a decent antenna will comfortably out-talk a handheld even though both put out 5 W. The catch: a mount needs installing, an antenna and a power feed, and it stays with the vehicle. Many tourers run both — a mount for distance on the highway and convoy, plus a handheld to carry when they leave the car. If you can only buy one and the radio mostly travels in a vehicle, mount it.
We compare the trade-off in more depth in handheld vs vehicle-mount UHF, and you can filter both types side by side in the comparison tool.
It's tempting to shop on watts, but in UHF CB you can't — every legal radio tops out at 5 W anyway, and plenty of handhelds (and all the toy-grade units) put out less. More importantly, UHF is line-of-sight. The signal travels in roughly straight lines, so what's between you and the other radio matters more than the last half-watt of power. In open, flat country you might reach 10–25 km; through hills, bush or built-up suburbs that can drop to 1–5 km. A hilltop helps everyone; a valley wall stops everyone.
That's why the order of importance goes: a good, well-mounted antenna first, clear terrain and height second, then watts. A 5 W handheld with its stubby antenna down in a creek bed will be out-performed by the same 5 W feeding a roof antenna up on the ridge. When two stations still can't see each other, a repeater (on the duplex channels, typically Ch 1–8 and 41–48) can relay the signal from a high site and dramatically extend reach. Don't choose a radio on its power figure — choose it on type, antenna options and where you'll use it. There's a full explainer in UHF radio range explained.
If the radio is going outdoors, on a worksite, on a quad bike or anywhere near dust and water, the IP rating matters. IP67 is the one to look for on a rugged handheld: the first digit (6) means dust-tight, and the second (7) means it survives brief immersion in water — roughly up to a metre for about 30 minutes. In plain terms, an IP67 radio shrugs off a dusty track, a downpour and a quick drop in a puddle. (Marine sets often quote IPX7 instead — the X just means dust wasn't separately tested, while the 7 still means it handles submersion, which is what counts on the water.) A cheap radio with no IP rating is fine around camp on a fine day, but don't count on it surviving the wet.
Battery is the other practical call on a handheld. Look at the real-world runtime, whether it uses a removable pack (handy to carry a spare on a long trip) or a sealed internal battery, and how it charges — a USB-C charge in the car is far more convenient on the road than a proprietary cradle. Vehicle-mounts sidestep this entirely by running off the car, which is another quiet point in their favour for long trips.
Once type, antenna and rating are sorted, features are where you spend the rest of your money — so pay only for the ones you'll use:
Features that look impressive but rarely change the experience: huge channel "memory" counts beyond the standard 80, gimmicky displays, and anything described as boosting range beyond the legal 5 W (it can't — and non-approved gear isn't legal for UHF CB here anyway).
If you take one thing from this guide: the antenna does the heavy lifting. On a vehicle-mount, a quality antenna mounted high and in the clear is the cheapest, biggest range upgrade you can make — far more effective than chasing a "stronger" radio. Antennas come in different gain ratings: a higher-gain antenna squashes the signal flatter to reach further across open country, while a lower-gain antenna throws more signal upward and works better in hilly terrain. Pick to suit where you drive, and many tourers carry one of each.
On a handheld, you can often swap the stubby for a longer aftermarket antenna for a useful range bump, or fit a remote speaker-mic so you can talk without raising the whole radio to your face. A spare battery, a USB-C charge lead and a decent earpiece round out the kit for most people. Spend here before you spend on a fancier radio body.
Rule of thumb. Spend on the antenna and where you mount it before you spend on the radio. A modest radio with a great, well-placed antenna beats a premium radio with a poor one, every time.
To turn all of that into a quick recommendation, here's the type we'd point each kind of buyer toward. Browse the matching picks in best two-way radios or filter everything in the comparison tool.
You know the type and the features that matter — compare every model side by side, or jump to our ranked picks.