In article ,
Bob Miller wrote:
On 19 Apr 2006 04:09:02 -0700, "RHF"
wrote:

excerpted

Now be honest. Have you ever attached a ground wire and heard less
noise?

Yes.

Remember, a receiver works on the voltage difference between the antenna
input and its local ground. If your treat the ground wiring as a sort
of antenna, the local noise becomes common mode* and you can (sometimes)
arrange the wiring so that the junk cancels out. (*The local receiver
ground has the noise added to it, and if it's about the same voltage as
on the antenna input, cancels out the noise). I've done this with both
my FR-200 and my R-1000.

Best case was with a transformer coupled random wire (using an isolated
winding to the coax). The arrangement was the ground rod, about 15
feet of wire, the matching transformer, and then the 70-80 foot random
wire all in a straight line away from the noise source (my neighbor's
dining room lights, I think). This worked well on one band at a time,
as the level of noise and pickup from the ground side wire varied.
(But an adjustable noise bridge down by the receiver is a heck of a lot
more convenient).

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)