For me, distortion of the radiation pattern of a simple dipole or loop
is the very least problem that CM currents can cause.
Much more significant is the potential for RFI, and increased noise
levels on Rx, because the feedline has become an active element of the
antenna system. It's usually easy to spot if you have the RFI problem;
but the Rx noise problem is more difficult to identify, and many folk
are unaware that they could potentially lower their noise levels by
addressing the CM issue.
73,
Steve G3TXQ
On 20/01/2011 04:55, jimlux wrote:
>
> Yes..
>
> But the real question, in a practical sense, is whether the weirdness in
> pattern from feedline radiation is bigger or smaller than the weirdness
> from having the building next to the antenna.
>
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