Rugged had many versions of their radios. Even got in trouble for one of them. Later models could not be programmed via the front panel but could be programmed via a computer. Then there was V2 and V3, so ya, knowing what you have helps. Or, just send them to me and I'll program them any way you want. Or better still, go to RT Systems, spend $45.00 and buy your own programming cable and software and be able to program your radios every day if you want. I'll even send you a file that has all the GMRS, FRS, race radio, a couple of ham repeaters in Moab, all the weather channels and even the marine channels if there is room. Import that into the RT Systems software and you can be a hero too. 😁