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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