At first I thought it was an RF problem, so I dropped filters in. Still the same problem, so I thought floating ground. I disconnected the TX Radio, and it still does it. When I key my handheld, the RX radio feeds the Discriminator audio to my URI and Asterisk hears me. But for some reason, it acts like I am just kerchunking it. I see the output in the Asterisk Console for the "Donk" every few seconds. I am not unkeying it, but it is acting like I am. Now granted, I don't have a service monitor to output the proper tone for the "radio tune rxtone" to set properly, but it works just fine on half duplex. Did I miss something? All I changed was the "Duplex=1" ---> "Duplex=2" I would really love to fully deploy this repeater, now that I have all of the parts I need. -- KI6PSP (Ed)