[Elecraft] [K3] Transmitter Calibration Procedure

[Don Wilhelm]

Randy,

If during the wattmeter calibration procedure you could not adjust the 
menu parameter something is wrong and your wattmeter is still not 
properly calibrated.

73,
Don W3FPR

On 11/9/2012 10:34 PM, Randy Farmer wrote:
> An update:
>
>    I did a power cycle and carefully repeated the TX calibration
> procedure. This time I caught the requirement to set CONFIG: TUN PWR and
> CONFIG: PWR SET to NOR. This instruction appears at the beginning of the
> entire Calibration Procedures section of the manual. This time, things
> behaved better but the instruction to "adjust menu parameter" for the
> proper reading on the external wattmeter was still puzzling. Adjusting
> the VFO A knob had no effect. Finally, I turned the PWR knob on the
> front panel of the K3 and the output power changed. I was able to do the
> 5W and 50W wattmeter calibration using this technique. I then
> re-executed the Transmitter Gain calibration using the K3 utility.
>
> The PWR knob adjustment value still is incorrect. Setting the Tune power
> for 30W delivers about 36W and to get 100W out of the radio I need to
> back the power setting down to around 91. The level is pretty consistent
> from band to band.
>
> This is no big deal, but I'm still not sure why the wattmeter
> calibration didn't affect the power control set accuracy. Am I just
> misunderstanding what's being accomplished in the calibration or is
> there still something wrong with the way I'm doing it?
>
>