I got a 920 a couple of weeks ago. Did the battery mod and hooked it up to my bud. It worked just fine setting the limits and searching for sats. As I was running back to amc 10 the pulse count started to slow down and stopped, reached physical limit showed on the screen. I checked wiring and all was good so I connected an old analog receiver to it and it worked just fine. Reconnect 920 no pulse count. Anyone with any experience in this, that can get me going in the right direction to find the problem. It was connected correctly to the 920 , pulse and ground. Thanks in advance...