[Icom] Noise With 706MKIIG in 2001 Toyota Tacoma

Sun, 12 May 2002 16:22:37 -0700

Sounds like the control cable is defective!  Check it out with an Ohm meter.
Sounds to me like you have data getting into audio. Did you crush the cable
when you re-installed the trim ?  What about when you re-installed the seat
? Did you crush the control cable ?  Did you try the cable/radio on the
bench before you installed it ?

We ALWAYS performed a pre-service check on rear mount commercial radios with
the control cable before install!

73 and good luck!
Jim W7RY

----- Original Message -----
From: "Michael P. Olbrisch" <[email protected]>
To: <[email protected]>
Sent: Sunday, May 12, 2002 4:11 PM
Subject: RE: [Icom] Noise With 706MKIIG in 2001 Toyota Tacoma

> Carefully strip off a good amount of coax braid from some
> RG-8 etc, and pull the control cable through it.  Try bonding
> it at first one, then the other, then both ends and see which
> gives the best result.
>
> Spend a few bucks at radio shack and get some of the ferrite
> noise suppressors, put them over the ends of the cables.
>
> Noise and interference suppression isn't usually one big break-
> through.  It is usually gotten one dB at a time.
>
> Good luck.
>
> Mike.
>
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]]On
> > Behalf Of Dave
> > Sent: Sunday, May 12, 2002 10:36 PM
> > To: [email protected]
> > Subject: Re: [Icom] Noise With 706MKIIG in 2001 Toyota Tacoma
> >
> >
> > You could try wrapping the control cable with the adhesive
> > copper tape (
> > like the stuff used as security tape on glass panels ) spiral
> > winding it,
> > and bonding that to the vehicle chassis.
> >
> > Only thing I could think of :-)
> >
> > Regards,
> >
> > Dave G3VFP
> >
> > ----- Original Message -----
> > From: "Davies, Doug A FOR:EX" <[email protected]>
> > To: "'Icom'" <[email protected]>
> > Sent: Sunday, May 12, 2002 11:00 PM
> > Subject: [Icom] Noise With 706MKIIG in 2001 Toyota Tacoma
> >
> >
> > > I just completed the installation of a MKIIG/AH-2
> > combination in a 2001
> > > Toyota Tacoma pickup.  With the engine NOT turned on, I am
> > getting a loud
> > > squealing noise on all bands.  Also, when I turn the VFO
> > dial, it sounds
> > > like someone is rubbing sandpaper on a microphone.  I have
> > the control
> > head
> > > mounted where the under-dash ashtray used to be and the
> > radio is under the
> > > driver's seat.  This stuff is present only with an antenna
> > connected and
> > > with various antennas, including the one on my tower hooked
> > direct to the
> > > MKIIG.  If the control head is mounted directly to the
> > radio, there is no
> > > noise.  Any ideas where this stuff may be coming from and
> > how to eliminate
> > > it?  Could it be being picked up by the cable that hooks
> > the control head
> > to
> > > the radio?  If so, how would I keep it off there?  Lots of
> > questions and I
> > > haven't even turned the truck on yet...geesh!
> > >
> > > Doug  VA7DD
> > >
> > >
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