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Re: [TenTec] OMNI6+ SSB transmit quality - HELP!

To: tentec@contesting.com
Subject: Re: [TenTec] OMNI6+ SSB transmit quality - HELP!
From: "Fraser Robertson" <g4bjm@hotmail.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 05 Jul 2006 21:29:50 +0000
List-post: <mailto:tentec@contesting.com>
Thank you Don.

My main email is f.g.robertson@open.ac.uk

or I also check g4bjm@hotmail.com

161 Fraser G4BJM


>From: "Donald Watters" <dwatters@ns.sympatico.ca>
>Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>Subject: Re: [TenTec] OMNI6+ SSB transmit quality - HELP!
>Date: Wed, 5 Jul 2006 12:03:48 -0300
>
>Fraser -
>
>What is your current email address?  Have some info for you
>
>161 -  Don, VE1BN  dwatters@ns.sympatico.ca
>
>
>----- Original Message -----
>From: "Fraser Robertson" <g4bjm@hotmail.com>
>To: <tentec@contesting.com>
>Sent: Tuesday, July 04, 2006 5:56 PM
>Subject: [TenTec] OMNI6+ SSB transmit quality - HELP!
>
>
> > Hi all, is possible to transmit good quality SSB from this rig?  I get
> > reports of muffled audio.  Listening on another RX I know what they 
>mean.
> >
> > I've re-aligned the driver & pa bias, carrier oscillators etc.  I've
> > isolated the mic ground as by design  it shares the PTT ground and 
>digital
> > noise was getting into the mic amp.
> >
> > With a two tone test the signal looks ok on a scope and spectrum 
>analyser
> > (products 26dB and 38dB down).
> >
> > I've tried different power supplies, different mics and audio sources.
> >
> > It sounds reasonable on receive, to me anyway, and works well on CW.
> >
> > The rig has the stock filters fitted.  A friend has the Inrad SSB filter
> > and
> > says he gets muffled audio reports too.
> >
> > I've ruled out RF feedback and am running out of ideas.  Any advice 
>would
> > be
> > appreciated.  The audio is readable but not crisp clear quality.  (The 
>rig
> > is an upgraded Omni6).
> >
> > Thanks / 73 Fraser G4BJM
> >
> > _________________________________________________________________
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> >
> >
>
>
>--------------------------------------------------------------------------------
>
>
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