One of the legs to the pot isn't already connected to the mast or
another cable is it??

RP

2008/5/9 Jinx <joecolquitt@clear.net.nz>:
>> As near as I can tell the noise is only present when the board with
>> the AD is attached
>
> Re-reading earlier posts (so apologies for asking about something
> you'd already mentioned)
>
> "It appears the noise is originating on the board. The AD specs call
> for 1K max input impedance. A unity gain op amp will probably fix
> the problem for my needs"
>
> I'm not aware of an AD conversing creating noise. The impedance
> of your pot is not markedly different from the recommended. Being
> slightly higher you can use a longer sampling time to offset this and
> still get good results
>
> and
>
> "RA3 (AD pin) runs all over the board to the various sockets and
> devices. However, the onboard pot does not exhibit the jitter"
>
> So this perhaps doesn't appear to be a problem with the remote
> pot at all, rather that the signal path from the connector to the AD
> pin is picking up noise. Maybe EMF from a crystal ?
>
> If you substitute the board pot with the remote (or put the board
> pot on long wires) does this make a difference ? How about a
> pot with shortish wires into the connector ?
>
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