Posted by
Christer Karlsson on
Jan 02, 2006; 10:46am
URL: http://elecraft.85.s1.nabble.com/K2-low-power-and-SWR-problems-tp385100.html
I built my K2 in late 1999 and it has behaved the same way ever since.
Gary has been very helpful and once his advice was correct (bad soldered
antenna connection) but it did not improve my K2. I did not want to
bother Elecraft anymore so I have learned to live with my rig. However
now I have decided to do something to cure my K2.
When I change band I first have to tune into a 50 ohm dummy load before
I switch to the antenna. If I first connect K2 to my antenna tuner
(perfect match) the power is significantly reduced and my cross needle
SWR meter shows high SWR.
If I have tuned via dummy load, then connected to the ATU (with good
match) and start reducing output from K2 the SWR meter will show a great
mismatch when having decreased to about 2 watts. The "low power
hostility" is most outspoken on 80 m.
This I guess is also why I can not use K2 on SSB.
Chris, SM7KJH
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