[160m] Beverage ground rods
Robert Wood
rwood90 at direcway.com
Sat Aug 13 23:33:01 EDT 2005
Tom, et.al,
have heard that if the beverage is LONG that the end terminator becomes less
important. ?? thoughts please.
73 w5aj
.
----- Original Message -----
From: "Tom Rauch" <w8ji at contesting.com>
To: "Pete Rimmel - Marine Chemist - N8PR" <n8pr at bellsouth.net>; "Mike
Bragassa" <bragassa at consolidated.net>; <160m at mailman.qth.net>
Sent: Saturday, August 06, 2005 9:55 PM
Subject: Re: [160m] Beverage ground rods
> I have seen several thoughts on grounding... Misek in his
Beverage Antenna
> handbook says that at high fequuencies a nearly lossless
ground is
> important. He even goes so far as to run a ground wire
between the two
> grounds at each end of the antenna. At low frequencies,
he suggests that
> the ground be inefficient so that a tilt angle is created
on the incoming
> signal, thus creating a larger forward or reverse vector
force in the wire.
Bad idea for many reasons. First, the very last thing we
want is conductive ground under the antenna. Beverages quit
working as the ground gets better under the antenna. They
won't work at all over a very good counterpoise.
Second, the wire laying on the earth is made very lossy by
the earth. It doesn't do what he claims at all. It does not
provide a low resistance path for currents. It only can make
things worse, not better.
You can measure the ground resistance and monitor any change
with something like a MFJ259B.
73 Tom
_______________________________________________
160m mailing list
160m at mailman.qth.net
http://mailman.qth.net/mailman/listinfo/160m
More information about the 160m
mailing list