It would be a shame to not be able to use this dipole, since your vertical
antenna won't come close to it without a lot of radials.
I suspect the problem isn't the antenna but rather the feedline.
I suspect the interference is a combination of feedline radiation and the Pin 1
problem on your entertainment gear. Even some so-called high-end consumer
electronics suffer from poor engineering.
Have you read any of K9YC's information on chokes and RFI (incl. Pin 1)?
73, Kelly
ve4xt
Sent from my iPhone
> On Nov 19, 2013, at 21:57, "Jim in Waco wb5oxq" <wb5oxq_1@grandecom.net>
> wrote:
>
> I have a full size 80 meter dipole at 60' in the center fed with 300 ohm
> window line to a good tuner with the balanced input. I cannot use it on 80
> or 40 meters even at levels of 25 watts or more because of interfearance to
> my entertainment center despite snap on chokes on all input leads and every
> speaker lead and a high end ac line filter. Therefore if I want to operate
> any frequency below 14mhz I feel I must try a vertical in a side yard located
> outside the shack. The area is about 25X40 feet. Radials can be put down in
> that area There is a 50' tower with a triband beam in one corner of that
> area. No other metal is in that area. The feedline length to the shack is
> about 20'. There is no height restriction in this area. I only need the
> antenna for 75 and 40. There is a 6' tall wood privacy fence around this
> area. I would hope that using a vertical in this area would fix the rfi
> problem since the antenna would be a good 40' away from the entertainmant
> center whe
re
> as the center of the dipole is directly above it. Suggestions please. WB5OXQ
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