[ICOM] IC-706MKIIG And Ambient Noise

[Paul S. Serio]

Doug,
I've used a 706 in both a Ford and Chevy. The Ford had a lot more noise, 
fuel pump etc.
The Chevy is fairly quiet except for spark plug noise and the noise 
blanker does a good job
of getting rid of it in SSB. AM...forget about it. I use a shielded 
power cable from the engine
compartment to the back seat. The radio is grounded to the body with 
it's mount. My High
Sierra is mounted on the back of the toolbox behind the cab of my truck 
and is grounded
to the body with a short 8" strap. That's it. No excessive noise 
problems. I never use the
preamp on the lower bands and rarely on the upper ones. In fact on 75 
meters I usually also
have the attentuator in line. I've found that the noise blanker works 
best when the front end
gain is adjusted for the band and conditions. In other words if you have 
the preamp on and no
attentuator on 75 meters the blanker will be of little use. Try 
adjusting your front end gain for
the minimum required and see if things don't work and sound better.  73
Paul, N5PS

Davies, Doug A FOR:EX wrote:

>My fuel pump has been filtered so it's not that.  I even put a metal shield
>around the computer and still have the noise.
>
>Doug  VA7DD
>
>----
>Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
>Icom Users Net: Sundays, 1700Z, 14.316 MHz
>Icom FAQ: http://www.qsl.net/icom/
>
>  
>