Curt,
Thanks for the feedback. Is the nature of the mod just the replacement of
C3 and C29, or is there something else (since you said other mod)?
I have an Omni VI (opt 3). I'll check and see if I have SMD or through hole
parts. I would probably attempt a through hole replacement, but not SMD.
73,
Mark
----- Original Message -----
From: "Curtis Rossow" <curtisa%surfbest.net@pop.surfbest.net>
To: <tentec@contesting.com>
Sent: Wednesday, February 25, 2004 2:19 PM
Subject: Re: [TenTec] Inrad Omni VI Audio mod
> I have installed the mod to my Omni VI opt3. I also have the installation
> sheet that gives a summary of the improvements. They give some photos of
> band pass sweeps to show the difference in response, unfortunately the
> after conditions uses Inrad filters #745 and #755 in place of the stock
> Ten-Tec filters. My observations are only using my ears.
>
> They say that the low end of the band pass cutoff on the stock rig is at
> 350 to 400 Hz at -3dB while the modified rig shows a cutoff of 250-300 Hz
> at the -3bd point. This is done by changing a capacitor in the PBT
> circuit. I like the way the modified rig sounds. You can have the old
> sound by adjusting the PBT frequency by tuning the PBT knob.
>
> The other mod is to change capacitors C3 and C29 on the IF/AF board to
> reduce the high frequency roll off. This gives a flatter IF response. It
> does sound better.
>
> They provide both leaded and surface mount caps for both the older and
> newer Omni's. You will use only one type.
>
> I think that the mod is well worth the $15.00 even if there are few parts
> to change. The installation sheets are worth the money
>
>
> Curt NU7R
>
> On Wed, 25 Feb 2004 13:40:41 -0500, Mark Erbaugh <mark@microenh.com>
wrote:
>
> > I was browsing the Inrad website and they have a mod for Omni VI SSB
> > audio.
> > They don't go into much detail. It cost $15 and takes half an hour to
> > install. Has anyone done this mod? Is it worth it? I don't really have
> > any
> > complaints about SSB audio on my Omni VI.
> >
> > 73,
> > Mark
> >
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>
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