[Mobile-Portable] Fwd: Injector Noise Cures

[N5WV]

David , I have never heard of that site. I am old old one room school and am not into computers as most are. I will check that out. The noise is not bad and is not present on all bands. I have cured most of it. But some is still present and I want it completely gone. If thats possible. My 2005 6.0 Excursion is not as bad as the 2000 model with the 7.3. I will be purchasing a 2015 F-350 this fall and hopefully with the new injection schemes the noise is less. But it could be worse. I have written Ford asking to consider toroiding and shielding the injector leads but Im sure with only a small percent running HF radio in there products that will not happen. It would cost hundreds of thousands to add that to every diesel powered truck they sell. If it was getting into the stereo systems they would do it. I appreciate your help and will check that site out. Cheers , Randy N5WV 

----- Original Message -----
From: qrv at kd4e.com 
To: "Mobile-Portable Reflector" <mobile-portable at mailman.qth.net> 
Sent: Sunday, January 19, 2014 7:18:33 AM 
Subject: Re: [Mobile-Portable] Fwd: Injector Noise Cures 

Randy, 

Have you considered also posting to the rfi at contesting.com 
list? 

There's a great deal of experience among those members as 
well. 

David KD4E 

> Group , Has anyone had much success defeating injector noise with 
> Ford 6.0 and 7.3 ltr diesel engines ? I have bonded the exhaust 
> system , doors and hood of my Excursions plus added extra engine 
> ground straps and power directly from batteries and injector noise 
> is still present. And have added mix 31 toroids on every power lead 
> and coaxial cable . I have purchased copper foil and copper tape for 
> shielding injector wiring harnesses outside of the engine and have 
> not had the time to do it yet. I thought about snap beading the 
> injector leads but they are enclosed under the valve covers with 
> other parts in the way. And they are very tight with no slack at 
> all. So if it was worth pulling the valve covers and oil rails one 
> could not wrap the bead at all. For now , all I know to do next is 
> start shielding external wiring harnesses with copper foil and copper 
> tape. Anyone have any other ideas ? Randy N5WV 



-- 

David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA 

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