[Elecraft] K3 - Output power instability?

[Don Wilhelm]

Stewart,

Do you have the latest firmware loaded?  As I recall, there were some 
changes to the power controls in the latest release which address that 
very problem.  If you have the latest, then try the next release.

73,
Don W3FPR

Stewart Rolfe wrote:
> Whilst transmitting today on CW (QSK) at full power, I've noticed on a 
> couple of occasions the power meter showing a fairly sudden drop in 
> power to around 45 or so watts. It gradually returns to full power and 
> then will behave normally for long periods. Each time this has 
> happened the radio has been on 80m and the ATU has been in circuit; 
> the power setting remains at 100 watts the whole time and the current 
> meter on the power supply does suggest that the power is indeed 
> falling. The SWR indication remains low and the PA temp stays around 
> 37 deg.
>
> If it continues to happen I will make more careful observations but as 
> an initial step thought I'd see if anyone has experienced this or has 
> any idea of what may be going on.
>
> 73, Stewart Rolfe, GW0ETF (K3 s/n 145)
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