Re: "Radio Noise"

["McIntyre, Richard" <mcintyre@wsbs-mses.eng.pko.dec.com>]

I think those of us who have this problem must not have not clearly
explained
the conditions under which the noise occurs.  In my case (and HKravec
and
I have exchanged email on the subject) the noise is not really speed
sensitive.
It NEVER occurs while coasting or under significant acceleration.  It
ONLY
occurs when the accelerator is very slightly "open" -- at the point that
speed is just maintained.  To me this means it's related to either 1)
intake
vacuum, or 2) torque somewhere in the drive train.  There are certain
speeds at which the noise is more noticeable.  

My car has no speakers in the dash, yet the sound source seems to be
located in or in front of the dash.

I guess maybe you have to experience it to understand why we
think it has nothing to do with the radio or speakers.  It 
is certainly perplexing.

Richard

>From: "Al Powell" <APOWELL@agcom.tamu.edu>
>Date: Fri, 19 Jul 1996 12:15:26 CDT
>Subject: Radio Noise
>
>> From: HKravec@aol.com
>> 
>> Yes it does have the Bose system.  I'll try pulling the radio out this
>> weekend when I travel from Alabama to South CArolina and see what happens.
>>  The sound is very throttle sensitive, could this still be electronic???
>
>Your sound is *almost  certainly* occurring in the radio speaker 
>circuits.