On Sat, 2 Aug 2003 09:39:17 -0500, "Mel Crichton" <kj9c@iquest.net>
wrote:
>adding any value of
>capacitor either before or after the choke only increases the noise... but
>it's still the worst of the 3 noise sources I found... any hints for the
>Toyota?
_________________________________________________________
Depending on the circuit, adding a capacitor alone may just shift the
resonant frequency of the associated wiring. Try adding a capacitor
with a small value resistor in series with it, about 50-100 ohms or
so. The resistor will absorb the stray RFI much better than a
capacitor alone. If you find it makes an improvement, temporarily
connect a potentiometer of the appropriate value and vary it while
someone listens for minimum noise. When you find the "sweet spot",
replace the pot with a resistor of that value.
--
73, Bill W7TI
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