UHF Bands Frequency

The first UHF band is located at 406 MHz to 420 MHz and is designated for Federal
usage. The second band is located at 450 MHz to 470 MHz and is designated for non-Federal usage. The last band, from 470 MHz to 512 MHz, shares spectrum with UHF television channels 14 through 20 in a few major urban areas. Channels in all three
UHF bands are 25 kHz wide. The propagation range in the UHF band is even less than that found in the VHF high-band; however, the radio signals easily reflect off hills and buildings, so dead areas are generally very small.

1. 700 MHz Band
New bands from 764 MHz to 776 MHz and 794 MHz to 806 MHz have been proposed by the FCC. These new channels would be converted from TV channels 63–64 and 68–69 to Public Safety use. The channels would be either narrowband for voice plus low-speed data or wideband (up to 150 kHz) for high-speed data.

2. 800/900 MHz Band
The portion of the radio spectrum from 806 MHz to 940 MHz is apportioned among many services, including cellular telephone, paging, nonpublic safety, and conventional
and trunked public safety. Federal Government users, however, have no authorizations in this spectrum. Channels for public safety are reserved in blocks that are
generally 25 kHz wide. These blocks reside in several locations within this portion of the radio spectrum. These radio signals reflect off hills, buildings, vehicles, etc., well enough that dead areas are nearly nonexistent. The propagation range for this band is shorter than for the UHF bands.