[Elecraft] Sudden erratic power/high current problems with K2

[Bill Carpenter]

I'll try to keep this short.  I was operating with my K2/100 with KAT100 
today and everything was fine.  I changed bands and initiated tune on the 
KAT100 and it did not operate properly.  The SWR leds went a little bonkers 
and it did not want to settle on a low SWR.  I disabled it by going to CAL 
and then I noticed that even though the K2 power meter was showing about 2/3 
scale I was getting full output on my outboard SWR meter.  I then took the 
KAT100 out of the loop by disconnecting it fully from the K2.  Now I am 
seeing very high power output of around 140 - 150 watts on the lower bands 
such as 160, 80, 60, 30, 40 and 20 with more normal power output on the 
upper bands but I'm still seeing high current indication on all bands.  In 
addition the power control on the K2 is not working in a linear fashion. As 
I increase it from the lowest setting it is OK until the KPA100 kicks in 
when it suddenly goes to full output.  I have not ever seen this happen in 
the 15 months since I built the rig or in the 2 weeks since I built the 
KAT100 - everything has been fine.  Now all of a sudden I have all this 
erratic behavior.  As I said I added the KAT100 2 weeks ago but there have 
been no problems at all until now.

Any and all help/suggestions are very welcome!!

73,
Bill NZ0T