Hum problem solved

3 postsstarted by kwillisjr 2012-09-18 19:27 UTC826 viewsoriginal topic

New Member

#1
2012-09-18 19:27 UTC

Last week, I posted a message about problems we had with a webcast. Since then I was able to resolve all of the problems except the hum in the audio. I finally was able to determine the fix today. I attached the drain wire from the ground of the house sound mixer to the shield of the RCA connector at the communicator. Everybody who commented about it said this was not the thing to do. The installation manual for the house sound mixer said this was not the thing to do. Everything and everybody was saying don't do it so I tried everything else....and in an act of desperation attached it and the hum went away. Has anybody else had this experience?

russellhltn

Community Administrator

#2
2012-09-18 19:35 UTC

My concern would be that you are shorting out half of your audio feed. What happens if you disconnect the "-" wire and just run with the "+" and shield? Is the shield even connected at the other end?

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johnshaw

Senior Member

#3
2012-09-18 19:45 UTC

I had a hum problem with my original stake center (60 years old at least building) and a simple ground loop isolator from the 'Shack' got me going.

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