I’d like to setup channel starting using two CDM 1250s one each VHF/UHF and use DTMF codes. To connect the radios I’m using a USB-RIM lite. Is there a document to start me on the path? Scott did help me with some notes from the schematic about the pins. http://www.repeater-builder.com/products/pdfs/RB_RIM_Max.pdf Lloyd Duck, W5LND