An early adopter of Force 12's 160VX (56' tall, linearly loaded vertical for
the 160 band) told me that after one season of 4 elevated radials, he
installed an extensive ground radial system. It improved the antenna
considerably. Some one he has skeds with asked him what he had done to get
so much louder.
I do not have any more details. I filed this information in my brain for
when I try to do the same.
Regards,
Rajiv, N2RD
----- Original Message -----
From: "bill thomas" <k1xt@hotmail.com>
To: <towertalk@contesting.com>
Sent: Wednesday, October 24, 2001 11:12 AM
Subject: RE: [TowerTalk] vertical antennas
>
>
>
> I have a full size 1/4 wave vertical for forty in my small back yard.
Last
> year I used 4 raised radials. This year I have a dense ground screen made
> up of criss crossed strips of 3 foot wide 2 inch poultry fencing. I have
> noticed several differences. There is much less interaction with my other
> nearby antennas, especially my tri-bander that interacted heavily with the
> radials on 20 meters and also on 15. The swr changed with the amount of
> moisture in the ground beneath the radials. Also, nobody could walk in the
> backyard without doing the limbo. Did it work? Yes, it worked okay,
though
> I had no other antennas on 40 to compare it to. On the other hand, the
> groundscreen shows very little interaction with my tribander, I notice no
> change in swr with moisture, and I can walk around the back yard. Does it
> work? Yes, very well. YB1A was s-8 on the vertical the other day on long
> path in the afternoon and I worked him with one call running a kilowatt.
I
> also had little problem working E30NA. It is certainly quieter than I
> remember the vertical with the raised radials to be. Again, I am in close
> quarters and I don't have room to put the antennas as far from each other
as
> I would like, so I certainly like the less interaction I get with the
screen
> in place. Also, should I use something like an HF-6 or HF-2, I don't need
to
> put out seperate radials for each band.
>
> Bill k1xt@hotmail.com
>
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