[TenTec] Orion II AT tuner question

Duane A Calvin ac5aa at juno.com
Fri Mar 31 15:25:53 EST 2006


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 at 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 at comcast.net>
> To: "'Discussion of Ten-Tec Equipment'" <tentec at 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 at contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> 
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
> 
> 


Duane Calvin, AC5AA
Austin, Texas


More information about the TenTec mailing list