I've experienced the same thing here with my loop. I'm 10 to 15 miles away
from three clear (in name only these days) channel 50 kw broadcast station
transmitter sites, all omni-directional with 1/2 wave towers, on 670, 720
and 780 KHz. When the open wire feed transmatch isn't tuned, my rig (a
Kenwood) gets broad garbage big time on 75 meters from the station on 780
KHz. With the transmatch tuned for wherever I'm at on 75 the problem goes
away for my purposes (ragchewing). It would still be a problem if I were
attempting weak signal work, but in my opinion, that's why God invented 10
to 17 meters. BTW, no probs at all on the Omni VI. Great front end.
Fans: At a local drug store, the kind that sells all kinds of stuff in
addition to drugs, I found the Cool Breeze fan, made by Collins
International Co. Ltd., of Fair Lawn, NJ, item no. EB24303. (No relation to
the radio company Collins.) This is a little 3" wide fan that runs off a
regular 115 v. ac line, with a rotary switch in the line, is quiet, runs all
day and comes mounted on a little stand with rubber feet so it won't walk
around. They were around $4 each. I aim mine at various heat sinks when
I'm ragchewing simplex on 2 m FM, or operating cw on HF. SSB doesn't seem
to heat anything up enough to need one. Anyway, each one was about 1/4 the
cost of a new muffin fan but you wouldn't want to try mounting one of these
inside something--too dangerous--strictly for separate outside cabinet
cooling.
Rob Atkinson
K5UJ
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