I've discovered this several times when I forget I'm in "split" mode and
VFO-B is on another band. After tuning, my RX is very attenuated! Oops!
So, it has helped me find a problem before I QRM'ed another band with my
calls. BTW, for the other responder, on the Orion, you must explicitly
initiate a "Tune" cycle. Merely transmitting does not do it for you.
73, Duane
On Fri, 31 Mar 2006 14:18:42 -0500 "Carl Moreschi" <n4py@arrl.net>
writes:
> I looked at the schematic. Antenna 1 comes directly to a jack. If
> you have
> the tuner installed, there is a jumper from this jack that goes out
> directly
> to the tuner. If you don't have the tuner, there is a jumper from
> this jack
> that goes to the radio antenna switching logic. The end result is
> the
> internal tuner is used on both the transmit and receive path but
> only for
> antenna 1.
>
> Carl Moreschi N4PY
> 121 Little Bell Drive
> Bell Mountain
> Hays, NC 28635
> ----- Original Message -----
> From: "Grant Youngman" <nq5t@comcast.net>
> To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
> Sent: Friday, March 31, 2006 12:57 PM
> Subject: Re: [TenTec] Orion II AT tuner question
>
>
> > The block diagrams do not show it in the receive signal path.
> >
> > I've never observed issues with the tuner tuned last for 80M and
> the
> > receiver on 20M, for example. If I use my external tuner in that
> way, 20M
> > goes nearly dead.
> >
> > Grant/NQ5T
> >
> > > I suspect that it will effect both TX and RX. However, it
> > > will probably not tune until you transmit. So if you switch
> > > bands, it will not tune RX until after you TX.
> >
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
Duane Calvin, AC5AA
Austin, Texas
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