[Antennas] Noise

[email protected] [email protected]
2002年3月21日 16:44:50 -0500


Kurt:
I'd be inclined to put a cap at the blinking LED. Check the computer unit 
for ground; I'll bet it's floating. You might be able to fashion a Faraday 
shield from aluminum foil and wire ties to shield the computer and strap 
the "shield" to ground. The suspect Ford also had the noise when you turned 
on the key. I was using a scanner with a stubby antenna to sniff for RF and 
could hear it from yards away!
73, Mike kf4fdj
At 02:50 PM 3/18/02 -0800, Mr. K. Rudolph, KD7JYK wrote:
>Same with some Toyotas. I get white noise with the key on and computer
>active. I also have aproblem with a flashing LED on the console. It
>produces a sweeping white noise with chirp that can be received hundreds of
>feet away.
>>Kurt
>>---
>Ross Technologies Signals Intelligence Division
>Rosetta Proving Grounds
>----- Original Message -----
>From: "Mike Gilchrist" <[email protected]>
>To: <[email protected]>; <[email protected]>; <[email protected]>
>Sent: Monday, March 18, 2002 10:15
>Subject: [Antennas] Need help with mobile intallation of my ICOM 706 MKIIG
>>> > Good day:
> >
> > For what it's worth, I solved a *SEVERE* noise problem on a Ford for a
> > friend. We finally found out the computer module, which is right behind
> > the glove box on the firewall was the culprit. It seems they left it with
> > a floating ground. We found a suitable ground point on the unit and took
> > it to chassis ground. The noise disappeared. YMMV
> >
> > 73, Mike kf4fdj
> >
> > - - -
> >
> > Your moderator for this list is:
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>>- - -
>>Your moderator for this list is:
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