There was a time when buying a new radio was something many hams could never afford to do. Then came the super cheap — and super controversial — VHF and UHF radios from China. But as they say ...
and circuitry to reduce radio frequency (RF) gain. UHF radios differ in terms of range, which is usually measured in miles or kilometers. Some FRS radios and GMRS radios use AA or AAA batteries.