Operating frequency range explained for Two Way Radios

VHF and UHF offer different propagation advantages. The operational band width of the radio is measure in MHz. VHF covers UK frequency range 136-174 and UHF covers 400-470 MHz.

Radio Channels (spectrum efficiency)
25kHz channel spacing is the traditional technology many radios still rely on.

12.5 kHz channel spacing allows double the number of users within the same amount of spectrum, and is how many radios now operate. Nearly all Icoms offer 25 or 12.5 kHz operation, all within the same radio.

6.25 kHz is the future of channel spacing, allowing four times as many users. This involves digital technology, which allows crisp, clear data and voice signals.

05/03/2007