Alan Scher wrote:
> Hello Topbanders,
> I have recently put up a 4 square 160mtr antenna system. I have a 200 ft
> rohn tower, and have suspended 4 1/4 wave wire antennas flat. When the
> problem is not present the antenna plays very well, but when the swr is up
> the efficiency is greatly down. Can anyone give me some idea where to start
> with this problem and some ideas on a fix before the snows come?
> Thank you for any help
>
>
How often are the guy wires broken up on the 200 foot Rohn?
You might want to check for cracked insulators or insulators with
leakage paths on the 200 foot tower guy system. The tower joints
themselves should also be checked. Replace the guy wires with
Phylistran non-conducting guys and maybe even try to build a cage stub
on the tower to detune it at RF on 160 meters.
Cheers,
Herb, KV4FZ
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160 meters is a serious band, it should be treated with respect. - TF4M
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