[Elecraft] K3S 6M Tune Pwr

[Mike Cox]

Both of my K3S's do exactly the same thing here. Both are running F/W 
5.66. I reverted one to a previous F/W (version 5.64) and the same 
symptoms persisted. I did not measure the actual output with an external 
Wattmeter; these are the values as reported by the K3 itself.

It's not a big deal for me but it certainly seems curious.

Mike, AB9V

On 2/2/2019 12:49 PM, Bob McGraw K4TAX wrote:
> I've seen consistently that the 6M TUNE power on my K3S, s/n 10163 
> defaults to 16 watts.   I have set the TUNE power at 20 watts and it 
> performs correctly on all bands except 6M.   I've completed the TX 
> Power Calibration with the K3 Utility.  All looks good there.    I 
> have PWR Per Band set such that the KPA500 is driven correctly from 
> the K3S.  The TUN PWR value as set in the CONFIG menu is 020 for 6M.   
> But when TUNE is pressed the VFO B display is 16 watts and the 
> measured output is 16 watts.   On other bands, when TUNE is pressed 
> the VFO B display is 20 watts and the measured power is 20 watts +/- 1 
> watt.    Also when the PWR is set to 100 watts, the 6M  measured 
> output power is 100 watts +/- 10%    This is measured using  a known 
> good 50 ohm dummy load and two different power meters to confirm the 
> results.
>
> MCU is 5.66,  FPF 1.26,  DSP1 is 2.88.    I think these are current.
>
> Not a big deal in any way but just curious as to why?
>
> Any ideas?
>
> 73
>
> Bob, K4TAX
>
>
> ______________________________________________________________
> 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 mike at ab9v.us