Using a K2 with autotuner, and trying to match a 302' loop which is up
about 50', fed with 300 ohm window line, through an Elecraft balun -
which is what I've been doing for a long time - suddenly, this
morning, the best SWR I can get on 15M is 5.3:1, and the best I can
get on 80M is 4:1, 4.8:1 at 3560.
I checked the loop visually, it seems physically fine, not even
iced-over. All other bands are matchable below 2:1.
Formerly, all bands were closely matchable...what could be causing this?
LL/K3ESE
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