VHF repeaters are usually 0.6 MHz, but could be plus or minus depending on which part of the VHF band they’re in. UHF repeaters usually have +5 MHz offsets.

ICOMs D-Star digital system. Source: ICOM Most of the time, hams that operate on the go do so either on the 2-meter VHF band from 144 to 148 MHz, or on the 70-cm UHF band from 420 to 450 MHz.

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DxB works on VHF, UHF, and 800Mhz, plus it can also use the cellular signal in a device to expand the range to anywhere in the world using the Radio-Over-IP repeater feature.