K3 power loss

[Jacques Gaudron]

Hello
(On behalf of a friend, Gerard, familiar with his K3, but not so much with
the English language )
When he sets the power of his K3 at 110, 100, or 90 watts, it decreases
gradually down to 50 watts, CW or SSB.
If set to 80 watts, no change !
Has anyone an idea ?
Best regards to everyone
Jacques de F9OJ

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[Nr4c]

Check out the antenna.  Maybe the radio is 'folding' back the power due
to a serious antenna mis-match.  The default foldback level may be 50
watts, and at power levels of 90, 100 or 110, it sees too high a VSWR
and protects itself.  But at 80 watts, it isn't as bad so it plods on,
still suffering, but not dangerous.

...bill  nr4c


On Tue, 24 May 2011 16:00:49 +0200, jgaudron wrote:

> Hello
> (On behalf of a friend, Gerard, familiar with his K3, but not so much
> with
> the English language )
> When he sets the power of his K3 at 110, 100, or 90 watts, it
> decreases
> gradually down to 50 watts, CW or SSB.
> If set to 80 watts, no change !
> Has anyone an idea ?
> Best regards to everyone
> Jacques de F9OJ
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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