[Elecraft] K3 Beta firmware rev. 2.57

[Dave G4AON]

Len

I checked the calibration at 5 and 50 Watts, the carrier power is close 
to the power control setting at other power settings too. Earlier 
firmware gives higher power, although still short of the expected 25 - 
40 Watt carrier. I have gone back to f/w version 2.46, although that has 
useless AM TX audio as there is no compression. I was checking on 80m 
into a 50 Ohm load.

I'm not too worried about AM as I rarely use it, but it should be 
implemented better than it is.

73 Dave, G4AON
---------------------------------------------
Lennart Michaëlsson wrote:
> GM all,
> not that I am one of those AM guys but just checked my K3 which produces 45W
> on 160 and 40W on 80.
> Maybe some set up trouble, Dave?
> 73
> Len
> SM7BIC
>
> Wayne, the AM power level in this version only seems to produce a
> carrier of 10 Watts when the requested power is "100W". While I don't
> agree with the idea of calling the power anything other than the carrier
> level, i.e. I would expect the power control to only go to about 30
> Watts on AM, 10 Watts is only 1/3rd of the carrier power a 100 W nominal
> transceiver should produce.
>
> Back to the drawing board?
>
> 73 Dave, G4AON
> K3/100 #80
> ==========================================
>
> * MORE ACCURATE AM-MODE POWER LEVEL. Also slightly higher modulation
> percentage.
>
>