VHF and UHF are two different slices of the radio spectrum, and picking wrong means your radios underperform in the exact places you use them.
What frequency do walkie talkies use? Almost all consumer and business walkie talkies use either VHF (136-174 MHz) or UHF (400-470 MHz). What frequency is a walkie talkie on depends on which band the radio is built for – you can’t just switch a VHF radio to UHF, the antenna and internals are physically different.
The practical difference: VHF signals travel further in open spaces – flat terrain, water, farmland. UHF doesn’t go as far in the open, but it penetrates buildings, walls, and urban clutter much better. So what frequency should a walkie talkie use for your situation: out in the field on open ground, VHF wins. Inside a warehouse, factory, mall, or anywhere with walls between people – UHF wins, no contest.
There’s also a frequency thing people miss: the channel numbers on your radio are just slots – channel 1 on a UHF radio might be 400.125 MHz while channel 1 on another brand might be 462.5 MHz. Two radios on “channel 1” are not necessarily on the same frequency. That’s why different brands sometimes can’t talk to each other even on the same channel number – they’re not actually on the same frequency, just the same label.
If you’re buying a fleet, buy all the same band – mixing VHF and UHF radios in one group means some people literally cannot hear each other. For most indoor business use, get UHF. For outdoor events, farms, marine use, VHF makes more sense. And if your range is bad, check the antenna before blaming the band – a mismatched antenna kills any radio.
Need the detailed breakdown with our real-world numbers? Our range test post compares both bands in the same locations, which is rare to find.