On Fri, Oct 12, 2007 at 11:09:59PM +0200, F6HQZ wrote:
> Check if you have a ground loop.
> If yes, this is probably the cause of this hum.
> Open the loop.

Actually, hum involving analog POTS lines is usually the result of the
line becoming unbalanced to ground.

Cheers,
-- jra
-- 
Jay R. Ashworth                   Baylink                      [EMAIL PROTECTED]
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com                     '87 e24
St Petersburg FL USA      http://photo.imageinc.us             +1 727 647 1274

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