[Elecraft] K2/100 RF output varies

[Mike Short]

I was recently testing a refurbished SB-200 I am working on. I am using my
K2 as the exciter, and had issues on all bands with the K2 remember the
power output
requested. I have connected everthing as follows: K2/100>>MFJ-993 Tuner in
bypass to only show power in and SWR on input circuit of amp,
>>SB-200>>LP-100 wattmeter>>1KW dummy load. 
 
When I would advance power output from about 10W or so to 70-90W output in
to amp, when I take the K2 out of tune mode, and re-enter, the power would
be 20W or so until I moved the Power knob a bit, then it would go back to
the 70-90W requested. The K2 and the amp are about a foot apart, but the
cover is off the amp, since I was doing some input circuit adjustments.
Maybe I am getting RF back in to the K2?
 
 

 

Mike Short

AI4NS

AI4NS at arrl.net 

 

No virus found in this outgoing message.
Checked by AVG. 
Version: 7.5.524 / Virus Database: 269.24.4/1476 - Release Date: 5/31/2008
12:25 PM