[Elecraft] K3: Automated Transmit Gain Calibration at 5 W, 50 W, and 1 mW

[Dick Dievendorff]

I'm using the K20; mode for this. It sends PC005; I've verified that the
KXV3, if present, isn't in TEST mode.

Try this in the command tester window:

K20;
PC005;

And observe the power in VFO.  It flashes 5.0 W briefly.

I'll have to play with an external wattmeter now!

Thanks!

73 de Dick, K6KR



-----Original Message-----
From: Joe Subich, W4TV [mailto:w4tv at subich.com] 
Sent: Saturday, December 27, 2008 7:02 AM
To: 'Dick Dievendorff'; elecraft at mailman.qth.net
Subject: RE: [Elecraft] K3: Automated Transmit Gain Calibration at 5 W, 50
W,and 1 mW


Dick, 

> This is interesting, I'll fool with this.  I don't know why 
> the pre-calibration power setting would affect the automatic 
> calibration, because the power is set by the calibration 
> routine to 5 or 50 watts or 1 milliwatt (on each band) before 
> any transmission.

check your use of the PC; command  It behaves differently 
above and below 12 watts.  If the power is below 12 watts 
PC050; interpreted as set to 5.0 watts ... if power is 
above 12 watts PC050; is interpreted as set to 50 watts!  

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dick 
> Dievendorff
> Sent: Saturday, December 27, 2008 9:02 AM
> To: 'Dave G4AON'; elecraft at mailman.qth.net
> Subject: RE: [Elecraft] K3: Automated Transmit Gain 
> Calibration at 5 W, 50 W,and 1 mW
> 
> 
> This is interesting, I'll fool with this.  I don't know why 
> the pre-calibration power setting would affect the automatic 
> calibration, because the power is set by the calibration 
> routine to 5 or 50 watts or 1 milliwatt (on each band) before 
> any transmission.  
> 
> 73 de Dick, K6KR
> 
> 
> -----Original Message-----
> From: Dave G4AON [mailto:elecraft at astromag.co.uk] 
> Sent: Saturday, December 27, 2008 2:26 AM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3: Automated Transmit Gain 
> Calibration at 5 W, 50 W, and 1 mW
> 
> Dick, nice utility. I've noticed an error can occur if the K3 
> is set to lowish power when you start the calibration run. I 
> had power set to 5.6 Watts and the 5 Watt cal routine failed. 
> Setting the power to 35 Watts allowed it all to run 
> correctly. Apologies if this has already been noted.
> 
> 73 and all the best for 2009
> Dave, G4AON
> K3 #80 f/w 2.76
> 
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