[Elecraft] K3 ERR TXG Message

[John W2XS]

I just completed the assembly of K3 #919. It is giving me the dreaded ERR TXG
message during the transmitter gain alignment.  The synth and ref osc
alignments went well. I went through the archives and have checked
everything already mentioned.  I am using FL-3 (2.7 5-pole with the -0.89
offset) as the CW transmit filter and cannot get any power output on any
band. The KPA100 is not yet installed. I upgraded the software with no
issues.  The FM filter is in FL-1 and the AM filter is in FL-2.  FL-4 and 5
have the 2 5-pole CW filters. I have the KBF3 and KAT3 installed also.  

I switched the 2.7kHz filter to FL-1 and re-set the parameters with the same
results.  

It’s as if the rig was always in the “test” position.  In fact, there is no
difference between “normal” and “test” that I can tell.

I did have one issue during assembly.  On page 28 of the assembly manual, it
says to check the resistance of a mounting screw to a close-by via hole (the
picture on the left side).  On my board (which was rev B), the via hole was
further away than in the picture, and I read a low resistance even without
the mounting screw in the hole. I sent off an email but it’s a holiday
weekend and so I continued.

I will discuss it with Elecraft support after the holiday but appreciate any
input. By the way, the support that I have received so far from Elecraft (on
the K3 and KX1 and K2 before) has been outstanding.

I have been really enjoying the incredible receiver, though. The combination
of the filters, AFX, and NR is just absolutely amazing. Even in the "test"
mode, I can tell that the QSK performance will be very good (slightly better
than the K2).

Happy Memorial Day.

John W2XS

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