[Icom] Intermittent problem

Sun, 23 Mar 2003 07:59:14 -0800

First of all, thanks to everyone for the great response to my original post.
I will investigate the connector first. I have a CAT-5 connector kit and
can, worst case, snip the connector and replace it. From the concensus, it
sounds like the most likely suspect.

I wanted to respond to Kurt's problems too. Kurt, I had exactly the same
problem when I installed my 706 in the car. I routed both +/- from the
engine compartment and put the radio under the passenger seat. I have a
Husler on a 4-mag mount for HF and the rig kept shutting down as you
described. It turned out all I had to do, as Dan suggested, is to tie a
short heavy ground from the radio chassis to the car frame. Since then, it's
been recommended to me to just run the + lead from the battery and let the
radio get both it's negative-side power and radio ground from the car frame
where it's mounted.

I hope this helps.
73, Dave, WA0TTN

> -----Original Message-----
> From: [email protected] [mailto:[email protected]]On
> Behalf Of Dan
> Sent: Sunday, March 23, 2003 6:28 AM
> To: [email protected]
> Subject: RE: [Icom] Intermittent problem
>
>
> 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, [email protected]
> >Icom Users Net: Sundays, 1700Z, 14.315 MHz
> >Icom FAQ: http://www.qsl.net/icom/
>
> Thanks
> Dan, N9JBF
> Need a construction based safety person?
> Direct hire or contract.
>
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> Icom Users Net: Sundays, 1700Z, 14.315 MHz
> Icom FAQ: http://www.qsl.net/icom/
>