[Elecraft] K3 Power calibration failure

[Brian Alsop]

I'm posting this for KK4AOA.  He will be joining the group later.
He is doing a clean build.

The K3 is a K3-10 so far with an internal antenna tuner and five 
filters.  No subrx.

Running the utility program transmit power calibration works fine on 
160,80 and 60M but fails on 40M.

Over the phone, we reviewed his crystal filter setup, redid the 
synthesizer calibration. Except for the above things seem to work.

Suggestions at where to look next are welcome.

He is unable to do the 5W wattmeter calibration because of no wattmeter. 
  Hopefully the factory settings are close enough.

There is also some ambiguity in that process.  It tells you to put the 
AUT into the bypass mode (hold ATU).  However, his K3 says the ATU isn't 
installed.  (Two pages earlier in the manual under menu option "enables" 
it says to set KAT3 to BYP, which he did).  These seem to be at odds 
with one another.  Or does this indicate some potential problem with the 
KAT-3?

73 de Brian/K3KO




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