I have the 2 desktop repeaters listed in the subject line. One is relm and the other is GE. Same exact repeater just different name. I’m assuming the software is different as well. I am needing help finding a schematic for the programming cable so I can build my own. There is not a whole lot of information on these. I can’t even find any software. I will just keep looking for that….., can anyone guide me on the programming cable info?