[Icom] Spark Plug Noise on F150

[Tony Hwang]

Hi,
Yes, the braid thingy.
Better check it and even remove paint to give good connection.
73,
Tony, VE6CGX

Ken wrote:
> 
> Hi Rick. Sounds like you've done all the normal stuff, your comment that
> the noise is the same with the hood open or closed sounds like "maybe" the
> hood ground thingy isn't making a good contact to the hood, on Fords it
> usually looks like a small copper color cheese grater and is located near
> the firewall, or it might be a ground strap, obviously it's hard to see it
> from hear, hi, hi, good luck, Ken
> 
> --- Rick Robinson <k8dxn@charter.net> wrote:
> > I am having a good bit of spark plug noise come in on my radio and I
> > would like to hear from those who have solved or reduced the intensity.
> > Here is what I have and what I have done.
> > 95 Ford F150 with the 300ci straight six and manual tranny.
> > Icom 706MKIIG/with amps for 2&432
> > Par omnis for 6,2,&432 and an sgc230 and sgc303 whip bumper mtd.
> > LMR 400 cable.
> >
> > I have cleaned the battery grounds and grounded the tailpipe with strap.
> > New Ford OEM plug wires and Autolite platinum plugs.
> > Better quality (copper inserts) cap and rotor button.
> > New radio suppression condensor at coil.
> >
> > The plug noise is only present when the ant. is connected.
> > HF is worse than V/UHF.
> > Opening or closing the hood makes little or no difference.
> >
> > I would like to stop the noise at the source which essentially is the
> > plugs and/or the wires.
> > I would mainly like to hear from those with the same type vehicle or
> > motor who have
> > addressed this problem before.
> > Spark plug testimonials.
> > Plug wire testimonials, Yes I have heard of Magnacor wires but have they
> > really worked on this
> > motor? And with what plugs? A lot of money to experiment with on
> > wires($100).
> > Contrary to most beliefs the noise blanker in my 706 works well on my
> > spark plug noise
> > on most all bands, but I want the noise out before the blanker.
> >
> > I welcome all advice and comments and I think this will be a good thread
> > for all of us
> > to learn something from our collective experiences.
> >
> > Many thanks to all, 73 and see you on the radio.  Rick  K8DXN
> > ----
> > Your Moderator: Dick Flanagan W6OLD, icom-owner@mailman.qth.net
> > Icom FAQ: http://www.qsl.net/icom/
> 
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> Your Moderator: Dick Flanagan W6OLD, icom-owner@mailman.qth.net
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