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Old July 25th 06, 06:32 AM posted to rec.radio.cb
SparkySKO SparkySKO is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 28
Default Electric Motor Noises. GAHH!!

Frank Gilliland wrote:
SNIP

You had the right idea -- it is a grounding problem.

Ideally you should install the mounting bracket directly to the
chassis/frame/metal, but that's rarely possible with these new plastic
cars. Mount it as close and possible to the metal and run a -very-
short ground wire, no longer than just a few inches. If that doesn't
clear it up then try running a shielded power line (any old coax will
work for that). And if -that- doesn't work then think about drilling
the hole and installing a proper antenna which -will- solve the
problem.


You were right. I have eliminated ALL (as far as I can tell) noises
related to my vehicle. I tried grounding the crap out of that magnet
mount, nothing. I took it apart and tried everything, no deal. Got a
underhood mount, and drilled that under my hood, blammo, fixed. I also
tried just a mount stud and grounded that on my door hinge, and that
worked too. So it is possible to test whether or not this works before
you permanently install.

My SWR is 1.6 on all channels. I'm still getting about an S3 level of
noise (which is what I got when my car was off anyways). Makes it a tad
bit difficult to adjust the squelch so I don't drown out perfectly
clear signals :| . People are reporting that I am transmitting alot
louder, without a 'whining noise', however, I now have a 'popping'
noise, lol! This is without the vehicle on, so go figure, probably
static or something.