I have a K3 serial #412 which has always had an annoying resonance from the
internals of the radio cabinet somewheres when using the internal speaker. I
thought that it may have been the top lid which did that so I tried to isolate
the top lid by temporarily adding some electrical tape between the top and when
it meets the the top of the radio. However, that did NOT accomplish anything
for me. Has anyone found a permanent cure for that annoying resonance?
This afternoon I took my K3 for a bit of "Show and Tell" to a get together
picnic that our local ham club put on this afternoon. Not having a spare
antenna conveniently laying around, I just took a small roll of telephone
extension wire "4 conductor in it) so I soldered all four wire together with
enough solder residue so that it would just fit inside the SO-239 ant#1 rear
connector. I guestimate that I had an approximate lenght of 35 feet or so of
wire that I strung between trees. I had the K3 on a padded surface on the hood
of my vehicle to make it handy for the audience to see it. I tried the
automatic antenna tuner on all bands from 80 to 10 meters with a resultant
perfect match from 75 meters all the way to 10 meters with 1:0 to 1 match.
Unfortunately band conditios were not very good today.
73 from Fern VE7GZ
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