[Elecraft] K2 40-Meter Transmitter Alignment

[Don Wilhelm]

Edi,

Nothing is wrong. The K2 does not control power as tightly during a TUNE 
operation as during normal keying.

73,
Don W3FPR

edwin.ebert wrote:
>
> Hello
>
> My K2 is in the phase of alignment and Test, Part III.
>
> In the transmitter alignment with 2, 5 or 10 watts I have the voltage 
> and current similar to the manual (10 watts 11.5v and 1.98 amp).
>
> Test Setup: 100w dummy and WM-2 Wattmeter from oak hills
>
> Everything seems OK. Power and current remain stable during the tuning 
> time (5-10 sec).
>
> But then I have realized that I have differences in the reading of the 
> power level before and after I push the TUNE Button.
>
> E.g.: Power Set: 5 Watt then TUNE and the Display shows 6.3 Watt!
>
> Problem: If I repeat this procedure 10 times I read different, but 
> stable values between 4.8 and 7.1 Watt. The Wattmeter shows the same 
> values as the display.
>
> If the Power Setup is 10 watts the display can go to 13/14 Watt with a 
> current that is higher as 2A (but not excessive), that means CAL CUR 
> (2.5A) occur.
>
> I think there is something wrong, but I didn’t found this behavior in 
> the troubleshooting section.
>
> Can you help me?
>
> Many thanks
>
> Edi, HB9BQJ
>
>