Hello all, I have a XPR7550 IS (AAH56QDN9PA3AN) unit that has R02.50.05 firmware and from what I have read, it is supposed to be able to operate on the UHF R1 band and on the VHF band. For some reason however, I can only get the radio to operate on UHF R1. If anyone has any helpI would gladly take it, thank you.