[Elecraft] [K3] Noise from P3

[David Pratt]

*** Thank you to everyone for their kind help. ***

I am pleased to report that putting a ferrite 'clamp-on' core at each 
end of the 12V power lead has completely cured the problem.  Because the 
cable is quite thin, I managed to wind two turns round each core.

I wonder whether a screened power cable might have been an alternative 
answer?  Maybe I shall try that tomorrow.

Incidentally, before fitting the cores I did notice that placing a 
finger near the screen did increase the noise.

73 de David G4DMP
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  | David M Pratt, Kippax, Leeds.   |
  | Website: http://www.g4dmp.co.uk |
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