There are five MURS channels, frequencies are:
151.820 MHz (11.25 kHz)
151.880 MHz (11.25 kHz)
151.940 MHz (11.25 kHz)
154.570 MHz (20.00 kHz)
154.600 MHz (20.00 kHz)
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I couldn't say exactly what the communication range is for these- I have seen some web sites post the range at 4 miles max given the terrain and obstacles.
But what I can say is that these performed better than UHF radios of higher wattage power by getting thru buildings and between floors and over the horizon (hills and such).
These radios were my favorites for the range and durability.