[Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only

[hawley, charles j jr]

Thanks for the information. I did not have a tuner in this K3S when it failed the 6M cal so I figured it was just marginal for some reason since it DID pass on the third try. I have read the Config menu now and see how to check the gain and do a manual cal if necessary.

I was just afraid to do the Cal again with the utility since it did eventually pass. I thought...leave it alone. But I did want to investigate the 6M gain etc. and understand what it was all about. I see now that I can do a manual Cal on 6M only if it becomes necessary. I need to learn to read the pages on menus in the manual as well as the index. I checked as you suggested and my gains are LP 10 watts and HP 34 at 50.135 MHz. Also I did as you suggested and the dummy load tune SWR is 1/1.1
So all good I guess.

Thank you again,

Chuck Hawley
 c-hawley at illinois.edu

 Amateur Radio, KE9UW
 aka Jack, BMW Motorcycles

________________________________
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> on behalf of Keith Trinity WE6R <keith at elecraft.com>
Sent: Monday, April 6, 2020 4:32 PM
To: elecraft at mailman.qth.net <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only

Could be a burned trap on the KAT3 (most likely). Just jumper the coil,
L10 and it will bypass a burned capacitor. The trap was found to be
redundant.
Make sure 6m is on the correct antenna not 2.
In TUNE, does it really have High SWR?
Set ATU to BYP for any tests using dummy load.

Make sure TECH MD is on, then look at config menu TXGN HP (or LP below
12w [8w 6m]) for the gain number.
Try a manual TX gain cal on different parts of the band, every half a
meg or so and see if it will pass.
(set TUN PWR to nor, set power for 50w EXACTLY, then long press XMIT to
send a carrier at 50 w for several seconds)
Then check the TXGN number.
You can do it at 5.0 watts exactly for the LP gain cal.
Keith WE6R  Elecraft K3 Tech



______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to c-hawley at illinois.edu