[TenTec] Omni VI filters

[Ken Brown]

>From your description of the buttons you are pushing I think you are
talking about the filters in the 6.3 MHz Band Pass Tuning IF. In that case
there are no adjustments to be made. There are "T pad" attenuators
hardwired on the board, intended to compensate for different losses of the
different filters, but they are fixed and not adjustable.

It is only in the 9 MHz IF where the NAR filter, or in newer Omni VI the N1
and N2 filters go that there are jumpers to select different compensating
attenuator values.

I suggest looking for faults in your filters, the connections to the
filters, or maybe flaky switching diodes.

DE N6KB

On Mon, Aug 7, 2017 at 3:11 AM, John King via TenTec <tentec at contesting.com>
wrote:

> Stan, do you have a photograph  of the board showing the adjustment
> points? If so, I would greatly appreciate having the benefit of them to
> make my adjustment. I don' need to move the TXO much. Thanks and 73, John,
> K5PGW
> On Monday, August 7, 2017, 7:16:07 AM CDT, Barry N1EU <
> barry.n1eu at gmail.com> wrote:
>
> It is not normal.
>
> Barry N1EU
>
> On Mon, Aug 7, 2017 at 7:41 AM, <s_gammons at charter.net> wrote:
>
> > Hi Greg,
> >
> > I have hearing loss also. The increase in gain is fine with me. I just
> > wondered if it was normal.
> >
> > Thanks for your reply.
> >
> >
> > 73
> >
> > Stan
> > KM4HQE
> >
> > On Aug 7, 2017, 6:26 AM -0500, Greg S via TenTec <tentec at contesting.com
> >,
> > wrote:
> > > Stan....my Omni VI Plus has the same action as yours. When I hit the
> 1.8
> > button, signal narrows, and gain jumps noticeably. I've actually come to
> > like it. I have hearing loss, and on past rigs, narrow filters never
> helped
> > me copy weak SSB signal. This one does at times. Different strokes for
> > different folks. Regards, Greg, KC8HXO
> > > --------------------------------------------
> > > On Sun, 8/6/17, Stan Gammons <s_gammons at charter.net> wrote:
> > >
> > > Subject: [TenTec] Omni VI filters
> > > To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com
> > > Date: Sunday, August 6, 2017, 10:12 PM
> > >
> > > Hi everyone,
> > >
> > > After adjusting the BFO and TCXO and
> > > using the Omni VI for SSB and
> > > digital modes for a little over a week
> > > now, I kind of like the new to me
> > > rig.  I noticed a +2 or so S unit
> > > change when switching from the 2.4 Kc
> > > filter to the 1.8 Kc filter.  It's
> > > like there is less loss or more gain
> > > when switching to the 1.8 Kc
> > > filter.  I wouldn't think that would be
> > > "normal"  Switching to the .5 Kc
> > > filter doesn't do that. S meter reading
> > > is the same as the 2.4 Kc filter.
> > > Anyone seen this before?
> > >
> > >
> > > 73
> > >
> > > Stan
> > > KM4HQE
> > >
> > >
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