[Elecraft] K3 max power out 63W?

[Rob May]

I dont' know when it happened, but I can no longer get full power out of my K3 (s/n 1417 FW 2.58 DSP 1.94).  Using the tune control, power out will not go above 63 watts.  I can do the TXGN calibration at 5W and 50W with no problem.  But if I turn up the power, the output never goes above 63W, i.e. if I dial in 50, I get 50W, if I dial in 63, I get 63W, if I dial in 75, I get 63W, if I dial in 100 or 120, I get 63W.  It used to work ok.  This is all into a dummy load with an indicated SWR of 1.1-1.  What could have happened?  I've tried going back to FW 2.45, but the problem still exists.  Any help would be appreciated.
Rob
NV5E

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