[Icom] Noise With 706MKIIG in 2001 Toyota Tacoma

[Larry Benko]

Doug,

Lots of good ideas so far but first try a simple experiment.
Disconnect the front panel extension cable at both the radio
and the front panel.  Plug the front panel back onto the
radio temporarily.  Make absolutely no other changes.  Does
the problem still exist or is it totally cleared up.  Let us
know.  This test is much more conclusive than buying toroids
etc.

Larry Benko, W0QE

"Davies, Doug A FOR:EX" wrote:
> 
> 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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