[Icom] Intermittent problem

[Dan]

At 05:23 AM 3/23/2003 -0500, you wrote:
>Dan;
>         I've had problems with my rig shutting down when the rig was 
> improperly
>grounded.  Go through the installation to make sure that everything is
>strapped to ground.  Double check your existing grounds.  I would double
>check the antenna SWR to insure everything is ok.
>
>         Without knowing all of the details of your installation it is 
> hard to
>diagnose the cause  of your problem.
>
>Kurt - W2MW

Hi Kurt, all,
It is difficult, I had the problem occur on a return leg of a trip to NC 
from WI.  Everything worked great on the way down.  The only thing I did, 
every night at motels was remove the hamstick9quick disconnects) and bring 
the radio in the room with me.  Never moved the mount or any 
wiring.  Nothing on the installation was changed, SWR was checked on a 
outboard meter.  The 706 head is mounted on top of the dash on an alum 
angle.  The wiring goes across the dash and into the window post trim, up 
the post and across the driver door inside the header trim, down the post 
between the front/back doors and under the driver seat to the 706 
body.  The first change I am going to try is moving that wiring down from 
the dash and across the door under the threshold instead of across the 
header trim.  The power comes direct from the battery, starting with fuses, 
both +/- and comes in the passenger side at the far right side of the 
firewall, into the space behind the foot kick panel, then under the door 
threshold to the area under the passenger seat.  I connect with a massive 
connector that is good for at least 50 amps and is clean.  It is a positive 
connection!  There is about 3' extra of all wiring to allow moving the unit 
to the front seat if I want.

The ant system is a 3 magnet mount with Hamsticks for 10/15/40.  I didn't 
try the forty but the problem was there  on 10/15.  It had been used 
without problems for 3 years before I got the Heil set.

I have talked to several people, on the bands and in person, that have had 
this same problem.  It only occurs with some heil or other type headset 
boom mic combos.  One guy, in NC, showed me all the coils in his 706 and 
mic wiring he had done to eliminate it.  I tried several different coils 
but had no success at that time.  Granted I was on the road, in NC on my 
way back to WI and didn't spend the time I should have on it.

Now that it is warmer, I plan on putting everything in and trying to 
isolate the problem.  Also, I sent an e-mail to Heil and got an immediate 
reply from Bob to call him on Monday to see if we can figure it out:<}




>----
>Your Moderator: Dick Flanagan W6OLD, icom-owner@mailman.qth.net
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Thanks
Dan, N9JBF
Need a construction based safety person?
Direct hire or contract. 

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