Hi all, I've gotten my (N2OYJ) system up and functioning in a simple mode so I can have access to the local repeater from the computer room. A friend and I are trying to set up another unit for something similar. Using XIPAR as the base, a URI and either a CDM750 or GM300 as the radio it attached to. There appears to be an issue I haven't yet found. Using the working configuration from my system as a starting point, the 'radio tune rxnoise' returns the error as if there is no signal on the flat audio pin (PIN 11). This occurs on BOTH radios. The next step is to bring the working radio/URI combination to the non-working system and see it the error remains, then switch URI's;all to try and isolate the problem. Q: Is there a way to test the URI? Either using a signal generator or not using a generator (both was might be good for others). Rod N2OYJ