[TenTec] Ground Loop ?

[Jim FitzSimons]

I am using the digipan interface on my Pegasus now. It has a transformer
for the audio and a optical isolator for the PTT. That makes sure that
no
AC gets into the input. Here is a link:
http://members.home.net:80/hteller/digipan/
You can build the same circuit yourself.
Peace, Jim FitzSimons W7ANF

Bill_Ames@hyperion.com wrote:
> 
> You should be able to implement your control interface using an optical
> isolator. This eliminates the need for a common ground. Basically you have a led
> that is turned on/off and a photo transistor that turns on/off. Not expensive.
> 
> Bill Ames
> KB1LG

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