[Elecraft] K3 HI CUR on 20m Only

[Oliver Dröse]

Chris,

do the TX gain calibration per manual (easiest using the K3 Utility) and 
problem should hopefully be gone (just had a similar problem with a 
friend's K3). GL!

73, Olli - DH8BQA

Contest, DX & radio projects: http://www.dh8bqa.de


Am 31.07.2015 um 22:15 schrieb Chris Soames:
> Hi, hopefully someone can point me in the right direction to cure the 
> problem that has manifested itself on my K3.
> When I TX using more than 11 Watts on 20metres shows HI CUR on the 
> display.
> When I TX using more than 20 Watts on 20 Metres the display shows HI 
> CUR for a second or two the the rig switches itself off.
> I have tried 2 different antennas and a DUMMY load and the results are 
> always the same.
> I have tried both antenna connectors, I have also checked the power 
> supply and it is feeding 13V into the rig.
>
> I do have the internal antenna tuner fitted, When I tune on 20 metres 
> I do not  get the SWR reading at the top of the display. All I get is 
> -- at the top and 5.0 W at the bottom with reference to tuning.
>
> With the internal ATU bypassed I get exactly the same problem on 20 
> only HI CUR and switches off.
>
> All other Bands at all power levels are fine, the problem is 20metres 
> only.
>
> Where to look?
>
> Help!!!
>
> Chris G0TZZ
>
>
>
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