[Elecraft] K3 CAT noise

[Julian, G4ILO]

bill4570 wrote:
> 
> While operating in the PSK-31 data mode, my K3 produces a noisy waterfall
> any time CAT control is enabled.  This shows up as horizontal lines on the
> waterfall about 1 mm apart.  As soon as I disable CAT, the lines
> dissappear.
> 
> I can copy right through the noise, so it's not an operating issue, but
> it's distracting.
> 
> Has anyone else come across this?  What was the resolution?
> 
> 
I remember this coming up once before. I believe it was a problem with
grounding the shields of the cables between the rig and the computer.

-----
Julian, G4ILO. K2 #392  K3 #222.
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