I just got a VHF GP680 in, and i'm told there is a simple CPS mod that will allow me to read/write the radio with the GM/GP300 series CPS.... I just haven't been able to find out what actually needs to be done. How do I do this mod? I have Professional Radio GP/GM300 CPS Ver 03.02.01.
The radio itself is a GP680 with Firmware R02.00.22 that apparently came from Iraq.
Any help would be greatly appreciated!
MPT-1327 Mod for GP/GM300 CPS
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