On Wed, 23 Mar 2005 09:31:10 -0800, Clay Curtiss W7CE wrote:
>On the subject on grounding, the generator is located in a separate shed
>about 20' from the service entrance. If I use a single ground point, should
>it be at the generator or at the service panel?
Immediately adjacent to the service panel would be my choice. And following
W8JI's advice, I would try to route the antennas through that common point and
bond them (and their protection devices) there.
Remember that earth grounding is for lightning protection, NOT for antenna
performance, and it has little effect on RFI, except to the extent that it
either bypasses or radiates stuff coupled from the power system.
>If I can eliminate my own man-made QRN, it should be a great location for
>some serious DX work. The cabin is over 2 miles from the power grid and
>at 1700' in elevation on a mountain.
Yes. I have a similar QTH (see W6BX at qrz.com) that IS on the grid, but just
barely -- we're the end of the run, that also serves a few other radio sites.
I haven't had a lot of time there, but did work CQWW-CW 160 from there and it
was very quiet. It wasn't always thus -- last summer, I heard some
intermittent line noise (3.5-14 MHz) that was being radiated as common mode by
the power line. A large forest fire in early October took down ten poles on
the 120/208 feed coming up to us (immediately replaced by the power utility)
and I haven't heard the line noise since.
Jim Brown K9YC
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