Hi, Randy,,
Based on my experience, I would add weights to the radials that will enter
the pond and extend them as far into the water as possible.
My very first 160 inverted L was supported by a tall pine on the dam of a
lake. I owned the dam. I drove an 8 foot ground rod at the water's edge and
attached 8 1/4 wave radials that I fanned out into the lake in a semicircle
from the dam. I used my canoe to install the radials. I could see a
significant drop in the driving point impedance as the submerged radials
were added, eliminating a lot of the ground resistance in series with the
radiation resistance of the vertical. The VSWR bandwidth also reduced as the
Q increased. I should also mention that the lake had been treated with some
amount of copper sulfate to suppress some of the vegetative growth.
I expect that your pond will certainly have inorganic impurities in the
water that will increase its conductivity and improve your ground
connection.
In my case,that simple inverted L was quite a good performer, and some of
the things that I worked from my location in Raleigh NC were VK6, VK3, ZL,
JA, 3B8, KX6, KH6, ZS and many Europeans - all with about 400W.
GL!
73,
Charlie, K4OT V
-----Original Message-----
From: Topband [mailto:topband-bounces@contesting.com] On Behalf Of AA8R
Sent: Tuesday, August 20, 2013 4:34 PM
To: topband@contesting.com
Subject: Topband: Radials in the pond..?
I'm putting out 60 1/4 wave radials for my 160m Inverted L on the
ground. 4-5 of those radials will end up in my pond with anywhere from
5-10 feet to 25 feet in the pond for those 4-5 radials. The pond is to
the NN/E of the Inverted L.
Should I:
1) Just attach to each radial a heavy enough weigh at the end of
those 4-5 radials and toss the weight into the pond?
2) Coil up those 4-5 radials and lay the coil wire at the shore line ?
3) String those radials along the shore line?
Thanks for any suggestions.....
Randy, AA8R
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Topband Reflector
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Topband Reflector
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