[Elecraft] K2 Alignment

[Don Wilhelm]

  Ian,

What you are seeing in TUNE is normal.  The power control is not as 
responsive in TUNE as it is in normal operation.
There is a reason for it - think of those using a manual tuner.

73,
Don W3FPR

On 11/13/2010 6:28 AM, Ian Liston-Smith wrote:
> K2 s/n 6905
>
> I have just got to the 40-metre TX alignment and peaked up L1/L2; minor issue/observation.
>
> The power output varies sometimes when [TUNE] is selected. Set to 2W and sometimes it's about 1.5W and sometimes 2.5W.
>
> I've checked the output on a 20 MHz scope and there is no obvious instability. Battery 11.7, volts current about 1.26A when on higher output and about 1.1A when it's jumped to the lower output. I have not seen this change during TUNE, just when hitting TUNE, rx, TUNE, etc.
>
> When adjusting the power control and looking at the output on the scope, there are discrete jumps rather than a smooth variation. Presumably this is normal, but if the power setting is set on the edge of a 'jump' then maybe this is to be expected...? Seems a bit strange is this is the case. Maybe it does not occur in normal use?
>
> I have had a quick look in the archive ("power varies") but not found anything that really matches these symptoms.
>
> Any thoughts?
>
> Thanks and regards,
>
> Ian, G4JQT
>
>
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