Your friend is a wise man. That is, indeed, reality. There's a
discussion about this in one of my tutorials.
http://k9yc.com/CoaxChokesPPT.pdf
The PRIMARY reason for putting a very good common mode choke at the
feedpoint of an antenna is to prevent the feedline from radiating into
your neighbor's living room and from picking up noise from his living
room on receive. The reason this works is that the feedline probably
runs closer to his living room (and yours) than the antenna itself.
A choke will not eliminate all noise, because the antenna is picking it
up, and it won't eliminate all of your TX RF in his living room, because
your antenna radiates it.
73, Jim K9YC
On 1/13/2019 1:55 PM, Ray Albers wrote:
A friend once told me, "Almost none of us has a balanced dipole."
What he meant is, few of us are lucky enough to be able to put a dipole
high up and completely in the clear - most of us have to put it up where we
can, and one side will be closer to houses, trees, gutters, chain link
fences..... than the other.
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