Also known as Ultra High Frequency antenna
The UHF radio band that is used for commercial and
amateur band is between 400 to 512 MHz
While VHF may be better at longer range in open field, UHF is better for security when operate inside buildings, and a very congested city,
UHF radios equipment is mainly used for:
PRS CB UHF Radio
UHF (ultra high frequency) signals operate at the higher end of the radio frequency spectrum, the reason being why it can penetrate metal and concrete structures.
This makes UHF radios a good choice in built-up areas.