[1000mp] my SuperCable is done

[Pete Smith]

At 04:11 PM 6/20/02 -0400, you wrote:
>Sounds like a nice project Bill.  From my experience, you might want to 
>consider putting audio isolation transformers in the soundcard lines.  The 
>$4 radio shack transformers will provide response down to about 200hz 
>which should suffice for all but the hi-fi crowd.

Even in the absence of hum from ground loops, I wonder if the isolation 
transformers would be helpful in reducing rfi getting into the soundcard 
through the audio lines, since the common mode connection is broken that way.

I have a problem with RFI getting into my soundcard and crashing RecAll on 
15 meters when I use my audio patch panel.  It's OK when I make a direct 
connection, which makes me think that the total length of the connecting 
cables is the source of the problem.  If it was differential mode, then 
bypassing should help, but I was wondering if iso transformers would be 
worth adding...


73, Pete N4ZR

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