Difference between UHF and VHF radios

UHF and VHF are the two bands most used in security and operations radio. They are not brands. They are the kind of frequency the radio uses to talk to another radio, without the internet.

Palo Security supplies UHF and VHF radios — handhelds, vehicle sets and base stations. The lines are Hytera, Motorola, ICOM, Caltta and Kirisun. Quantity and the band are set in the quote.

VHF

VHF (Very High Frequency) uses a longer wave. In open country, coast, road and rural areas it usually reaches farther at the same power. It goes through walls, concrete and tight streets less well.

UHF

UHF (Ultra High Frequency) uses a shorter wave. It enters buildings, warehouses, surface mines with structures and dense neighbourhoods more readily. In very open country the useful range is usually shorter than VHF for the same set.

How to choose on the ground

• City, hotel, mall, office: UHF.
• Farm, long road, coast, open perimeter: VHF.
• One site with several floors: UHF, often with a repeater.
• A vehicle on a national road and a base in the field: VHF.

UHF and VHF need an authorised frequency. They do not mix on the same channel. A UHF radio does not talk to a VHF radio. Palo Security sets the band and the set in the request, according to the site.