Gary wrote on May 21.
I've had a Wellbrooke loop for a few years at 20' on a TV rotator. It
nulls a single nearby QRN source NW at 300 deg true. EU is about 15-30 deg
from here. When 160 or 80 are open over the N Pole, it often helps me hear
the weak.
It's less effective on multi-source QRN, but still helps at times if I
rotate the loop to null the loudest noise and max the received signals.
No room for other receiving antennas, and the loop ignores legal limit
transmissions on a 120'x120' lot. What more can I ask?
73, Gary NL7Y
Gary,
Deploying the loop at ground level can sometimes reduce local QRN compared
to mounting it high up where it can pick-up noise radiated from sources
below. Also it may be prudent to make sure you have mains filter on the
rotator, receiver and Loop power supply. Preferable one with a Earth line
choke, so it can have a separate ground connexion to the equipment isolated
from the powerline Earth.
73
Andrew G8LUG
All good topband ops know how to put up a beverage at night.
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Topband Reflector
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