[Icom] Need help with mobile intallation of my ICOM 706 MKIIG

[Dave Jeffries]

Had ignition noise (picked up by the power line) in a Chevy
cavalier once.  What I did was to enclose both power lines
(pos and neg) in the shield from some old RG-213 that I
stripped.  Grounded both ends of the shield and the noise went
way down but still bothered the VHF AM radio (aviation band).
Added capacitive grounding to both ends of the power leads
(yup the negative too) and the noise essentially disappeared.
Ran the caps from the power leads to chassis ground.  PS make
sure your hood is well strapped also.  It's surprising how
much spark noise an insufficiently grounded hood can radiate.

Good luck.
Dave J
sd0044@enetis.net

----- Original Message -----
From: "Davies, Doug A FOR:EX" <Doug.Davies@gems3.gov.bc.ca>
To: <icom@mailman.qth.net>
Sent: Friday, March 15, 2002 12:42
Subject: RE: [Icom] Need help with mobile intallation of my
ICOM 706 MKIIG


> I have my 706MKIIG in a 2001 Toyota Tacoma pickup.  I ran
the power cable
> direct from the battery to the radio using a 20A fuse in
each leg.  The
> total length of the run is about 6 feet so not much voltage
drop there.  My
> problem is ignition noise.  I have tried all the usual stuff
and I still
> have it.  The noise blanker gets rid of most of it but it is
still annoying.
> Good news is I don't have any fuel pump noise like I did on
the 1992 Toyota
> pickup.
>
> Anyone have any other tricks for geting rid of the ignition
noise?
>
> Doug  VA7DD