[ICOM] SWR tuning issue with IC-706MkIIG

[Michael Carper]

Update.

(After doing a CPU reset) Now the rig won't key the transmitter in CW mode
(though I can hear the sidetone).  Still no display of SWR.  I removed the
autotuner and I'm manually tuning the antenna... no difference.

...very frustrated.

Mike, WA9PIE

On Fri, Jan 7, 2011 at 12:51 AM, Michael G. Carper <mike at wa9pie.net> wrote:

> I haven't done that thus far.  I may dig one out and take a look.  But I
> thought maybe someone else may have seen similar behavior.
>
> Mike, WA9PIE
>
> -----Original Message-----
> From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net]
> On
> Behalf Of Gary P. Fiber
> Sent: Friday, January 07, 2011 12:16 AM
> To: ICOM Reflector
> Subject: Re: [ICOM] SWR tuning issue with IC-706MkIIG
>
>  Without having a look at the schematic and hazarding a guess I would say
> may
> one of the diodes in the swr circuit is in trouble.
> Are you using an external meter to monitor the SWR when the Turbo Tuner is
> running the antenna?
>
> Gary K8IZ
>
> On 1/6/2011 7:28 PM, Michael G. Carper wrote:
> > I've got a relatively old, but well cared for IC-706MkIIG.  It's in my
> > truck (www.wa9pie.net/hamradio).  I'm using a N2VZ Turbo Tuner and a
> > Tarheel Model 100A antenna.  This setup works really well.  However.
> >
> >
> >
> > I occasionally have an issue where the following happens:
> >
> >
> >
> > .         I've changed frequency where tuning the antenna is needed
> >
> > .         I hit the tune button and the N2VZ auto-tuner begins working to
> > move the antenna
> >
> > .         Normally, at this point, I'd see the SWR indicator start from
> an
> > infinite SWR to something approaching 1:1.  However, the problem is.
> >
> > .         The rig constantly reads an SWR of 1:1 as the auto-tuner moves
> the
> > antenna and eventually stops (may or may not be in-tune).
> >
> >
> >
> > It's rather frustrating.  I did a CPU reset on the rig. no difference.
> >
> >
> >
> > Thoughts?
> >
> >
> >
> > Mike, WA9PIE
> >
> > ----
> > Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net Icom
> > Users Net: Sundays, 1700Z, 14.316 MHz Icom FAQ:
> > http://www.qsl.net/icom/ To support QSL/QTH.net:
> > http://www.qsl.net/donate.html
> >
>
>
> --
> Gary Fiber K8IZ
> GROL PG-19-6691 with shipboard radar endorsement Washington State resident
>
> ----
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net Icom Users
> Net: Sundays, 1700Z, 14.316 MHz Icom FAQ: http://www.qsl.net/icom/ To
> support QSL/QTH.net: http://www.qsl.net/donate.html
>
>