Thanks for all of the suggestions. However I think you guys are missing the problem. Both repeaters work fine when they are not linked together. As stand alone machines they work fine and the audio sounds fine. Once I turn on the secondary port on the NHRC-4/m2 is when the noise occurs. I'm thinking it has something to do with the way the controller is handling the audio. Playing with the deviation changes the level of the noise however doesn't get rid of it.
The testing is being done on the bench and not at the site. Both machines have been test on bench running alone and work fine. I guess if it was easy it would be fun! Any new suggestions? Thanks, Mike KA2NDW
