M1PAF wrote:
>
> This is obviously radiation from the serial cable but I'm at a loss as to
> why (incidentally also tried some ferrites on the cable and they made no
> difference).
>
Problem solved. In spite of my "experience" ho ho - the percieved wisdom to
ground the shield at one end didn't work (either end). Connecting the shield
to the connector shells at both ends fixed the problem. Usually I wouldn't
recommend this due to potential ground loop problems etc. but no more noise
(and no ferrites needed either)
Thanks for all the suggestions.
Cheers,
Paul M1PAF
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