On 5/9/2012 9:24 PM, tom wrote:
On 5/9/2012 8:25 PM, Irv Finkleman wrote:
You haven't yet said if you tried disconnecting the antenna and whether
or not the noise was still there. That's the first test, and the best way
to determine if the noise is coming through the power line or the
antenna.

Irv VE6BP

Thanks for following it as a trail, Irv. It's nice to see things going
that way here again.

tom
K0TAR

It's quite possible that poor or no feed line decoupling could be a
culprit also.
With no decoupling, the coax will pick up shack/house noise on the
outer side of the shield, and pipe it back to the receiver on the
inside of the shield. Assuming coax anyway..
Of course, far off noise is more likely to be received by the antenna
itself, and even a system with a decoupled feed line would still
receive the noise.