[Elecraft] K3 Tx Spurious on Specific Frequencies on 160/80/40

[Mike Harris]

I believe the rather thick "shield" was actually a stiffener to prevent 
microphony at high audio levels using the internal speaker.

Regards,

Mike VP8NO

On 01/01/2021 18:22, g4piq--- via Elecraft wrote:
> And a small correction to this in case anyone else gets inspired to do
> anything. Grounding just one of the crystals improved the performance by
> about 8dB - but did not get as good as the KSYN3 with a shield. It clearly
> needs the full treatment.
> 
>   
> 
> 73,
> 
>   
> 
> Andy, G4PIQ