[Elecraft] KPA1500 gain jumping on 160

[Jim McCook]

Steve,

A good start would be to redo the K3 TX GAIN CALIBRATION.  Do not use 
the Utility, do it manually.  This problem can occur as a result of 
varying drive from the K3, typically from previously transmitting at 
either 5 or 50 watts.  Using your dummy load, set the K3 PWR to 5w.  In 
CONFIG: TUN PWR set the value to 5 watts. Then hold TUNE on the K3 to 
see a display of 5w.  Tap TUNE. Repeat the procedure at 50w.  Reset 
CONFIG: TUN PWR to any value EXCEPT 5 or 50w.  With the KPA1500 in OPER 
set the PWR control on the K3 to your usual drive level.  Hopefully this 
will fix the problem.   73, Jim W6YA