I'm currently trying make a portable repeater using Scott Zimmermans board from repeater builder and two Motorola CDM1250s. I don't want to link or use it as a hotspot just standalone. I primarily want to use DMR and P25. I have both modes enabled and they are green on the dashboard. It appears the DMR beacon is being transmitted. But when I try to key up using a Motorola XPR 6550 I get the talk inhibit tone. I have heard I may need to pot on the output audio from the RX radio. Not sure if there is something I'm missing or not. Just hoping someone else may know or have a suggestion for me. Thanks