[Elecraft] K3 tx power issue

Joe Subich, W4TV lists at subich.com
Thu Mar 19 11:11:42 EDT 2009


Check TXG VCE - what is the setting? 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Frank Lammel
> Sent: Thursday, March 19, 2009 10:15 AM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] K3 tx power issue
> 
> 
> Hello group,
> 
> a friend of mine has a strange problem with his tx power 
> after upgrading 
> to firmware 3.03. However I couldn't reproduce it with my K3 
> (also 3.03) 
> so I'm asking here.
> 
> Following test: QRG 3,67 MHz LSB, no ATU, SWR 1:1,2 whistle to the 
> microphone (Heil) TX pwr max about 80 W
> 
> Tap xmit, pwr=120 W, again whistle to the mic, now also 120 
> W. Now it is 
> ok until you change the band or power off/on the TRX. Then is starts 
> again with 80 W. About the same with USB. Also the same with ATU.
> 
> Without PA he has 8 W when whistle, then xmit=12 W, now also 
> 12 W when 
> whistle.
> 
> ALC about 4-7 bars. A calibration with the utility didn't 
> solved the issue.
> 
> Any ideas?
> 
> Many thanks in advance!
> 
> Frank, DD7ZT (for my friend Dennis, DG6HD)
> 
> 
> 
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