Here is my setup. I have a MastrII mobile which was converted a long time ago. I was having trouble with my controller a while back and went with Echostation. As far as I know everything was working fine for a while then over the past few weeks I started having this strange problem. After being on for about 15 or 20 minutes my audio level on the transmit side will drop really low. Most of the time if I unplug the cable going from the computer to the transmit side of the radio or turn the repeater off then on again it will come back to normal for about 20 minutes again.
I tried putting my audio mixer between the computer and the transmit on the radio and it didn't fix the problem, however using headphones on the mixer I could tell that the audio level from the computer never dropped. Which would lead me to believe it's something in the radio. I also tried disconnecting the ground line from the TX side and that didn't help. Going to try both the TX and RX side next so that there are no grounds going to the sound card. Besides that is there anything else that could be causing this? Thanks, Vern KI4ONW
