[ICOM] RE: Noise in 706

[curlyhrw at juno.com]

Hi Doug.......Get a wooden yardstick or something comparable. Wind a
loose pi coil about three to four inches in diameter. Find a piece of
coax
laying around with a PL259 on the end. Tape the loose wound coil on the
end of the "stick", solder the open ends of the coax, (preferably RG58)
inside conductor to one end of the wire and the shield to the other. You
now
have a sniffer. Hook it to the radio, and put the coax through a window
and
with the motor running, start doing your sniffing. You may be amazed at
what you find with the hood still closed. Then when you are satisfied
doing the
outside bit (and don't forget the tail pipe), then open the hood and have
fun exploring
a Ham's greatest noisemaker.
73, Curly K7HRW
---------------------------
On Fri, 18 Jun 2004 08:58:53 -0700 "Davies, Doug A FOR:EX"
<Doug.Davies at gems3.gov.bc.ca> writes:
> I have grounded everything on this vehicle.  It didn't reduce the 
> noise at
> all.  With each ground, I listened to the radio with the truck 
> running and
> made note of the noise level.  From the first ground to the last, 
> the noise
> remained a solid S-7.  The NB doesn't do a thing for it and the DSP 
> makes
> the audio unreadable unless it is a strong RF signal in the first 
> place.
> 
> I have one more ground to try.  The roof rack.  Still trying to 
> figure out
> how to do it.  Maybe that's causing some of it.  As I mentioned 
> previously,
> no antenna connected, no noise.
> 
> Doug  VA7DD
> 
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