[Elecraft] my K3 has some issues

[Dave Cole]

Have you tried using a backed up config file?  That may set everything 
back as it was...  This is assuming the config file took a hit...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 11/10/20 1:02 PM, Chet S wrote:
> Good afternoon K3 folks,
> 
> I am new to this list and honored to be accepted.
> 
> Recently my K3 has experienced a couple of issues. I have been unable to get
> a response from Elecraft e-mail or telephone service regarding the
> situation. It's been almost two weeks now so thought I'd ask here if anyone
> has some suggestions for me to try myself.
> 
> Here is the main concern:
> 
> When getting ready for CQWWDX SSB a few weeks ago, I went through setting
> the transmit power on each band to drive an amplifier properly. The power
> display seemed a bit sluggish and had a delay in indicating the SWR. Worse
> yet, when I got to 40M, I could not crank the power up past about 30 watts;
> it would momentarily display a higher number but then fall back to 30w. All
> other bands cold be set higher.
> 
> First I reloaded all the current firmware in the main and subreceiver. No
> change to 40M.
> 
> So next I went to the K3 Utility ver 1.20.1.15 to do a transmitter gain
> calibration. Starting with the 5W calibration, it stepped thru the first few
> bands OK but then stopped (I think on 40M) and displayed "ERR TXG" and the
> message "calibration settled at 3.6W, TX gain failed because transmit power
> did not reach the expected value".
> 
> In anticipation of having to send the radio to Elecraft where it might be
> totally reset, I manually started recording all the configuration settings.
> When I looked at my filter settings, I was shocked to see that filter 1 in
> the subreceiver was set to 1.35. Huh? It should have been 2.80 !! Was my
> config info corrupted? I reset that to 2.80 and then for the heck of it
> tried again to set the power on 40M. That now  worked "OK"  and the swr and
> pwr display during "tune" showed instantly on all bands. Something had
> changed.
> 
> Next, I decided to rerun the TX calibration gain routine. This time if
> successfully completed the 5w and 50w routines. However, with a good dummy
> load, 40M displays an swr of 1.4, while the other bands are 1.0 or 1.1, so
> something is still a little funny on 40M. What might that be?
> 
> I have now been considering doing a total reset of the radio using the EE
> INIT function and then the self calibrations. Is this wise?
> 
> Any experiences or suggestions appreciated.
> 
> 73,
> Chet, N8RA
> 
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