[ICOM] SWR tuning issue with IC-706MkIIG

[Al Waschka]

Do you have the meter set to swr? Does your tuner set the rig to cw, am, or fm? I do this manually and if i once chased this problem for days before i realized the meter was in alc. 

Sent from my iPhone

On 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
>> 
>> ----
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> 
> 
> --
> 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
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> 
> ----
> 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/
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