[R-390] Isolation transformer question

[Bob Camp]

Hi

The isolation transformer is kind of a work around. The GFI and the  
filter caps simply are not compatible with each other. A perfectly  
good GFI will likely trip on a perfectly good set of filter caps. If  
you ground the chassis (like through the antenna connector) that also  
is incompatible with at GFI with or without filter caps involved.

GFI's are great things. If you have an outlet that is near water, it  
should be on a GFI. They are not a solution to every problem that  
ever comes up. I do not use them in the ham shack. That keeps the ham  
shack and the swimming pool a bit far apart, but that's ok by me.

Bob
KB8TQ

On Jul 4, 2007, at 10:44 PM, Dave or Debbie Metz wrote:

> This thread has renewed a question I have had for a long time.  If  
> one uses an isolation transformer plugged into a GFI, what are the  
> implications?  It would seem like the GFI cannot "see" a leg  
> difference.  Does one lose the safety of a GFI in this case?
>
> thanks
> dave
>
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