PSN-L Email List Message

Subject: Re: Engine Start/Shutdown Noise Spikes From Automobile
From: =?ISO-8859-1?Q?J=F3n_Fr=EDmann?= jonfr@.........
Date: Wed, 05 Jan 2011 23:15:45 +0000


You have to use shield cable and ground it properly. That is the only
way to prvent this type of noise. I use cat-5e cable with shield to do

J=F3n Fr=EDmann.

On mi=F0, 2011-01-05 at 15:11 -0800, Richard Schneider wrote:
> Situation:  High amplitude spikes when starting and again on shutdown
> of engine from automobile.
>  Sensor is about 3 feet from car.
> EMF appears to come from auto alternator since I can see it upon
> engine shutdown.
> Any suggestions would be appreciated to mitigate the EMF from the
> sensor pickup coil without relocating it.
>  How about a lead shield?  The kind the dentist uses for X-ray's.


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