[ICOM] SWR tuning issue with IC-706MkIIG

[Al Waschka]

You may have to turn vox on. If vox isn't on with my 735, i hear the sidetone but the rig doesn't key. 

Sent from my iPhone

On Jan 7, 2011, at 2:31 PM, Michael Carper <mike at wa9pie.net> wrote:

> 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
>> 
>> 
> ----
> 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