Re: [TenTec] SO2R

["jack" <jfriend31@comcast.net>]

thank you MUCH! i have printed your instructions. i will use the filter 
arrangement. i can also be sure the radios are on separate antennas which 
have no crossover.
73 jack

----- Original Message ----- 
From: "Richard Detweiler" <rdetweil@hotmail.com>
To: <tentec@contesting.com>
Sent: Saturday, April 29, 2006 7:54 AM
Subject: Re: [TenTec] SO2R


> For simple S02R,
>
> Rule 1),  Never both radios on the same band.
>
>    IF You want to use the Orion's 2nd VFO on the same band,  then that 
> will
> work, but never two radios on the same band.
>
> Rule 2),  Each Radio has it's own antenna.
>
> RULE 3),  ALWAYS use the RADIO's band data output to switch antenna 
> filters
> and amplifiers,   ( I've run into a number of issues where the computer 
> said
> one thing but the radio said something else,  If I had transmitted that 
> way,
> I would have damaged something...)
>
> Use band pass filters like the 419 A or W3NQN to isolate the desired band
> and reject all others.  If you have lots of coax and paint cans, you can
> make stubs that also work well.  The stub acts like a short or similar to
> anything but the desired band.
>
> Use a 2X6 antenna switch box to split the antennas to two radios,  and 
> then
> another pair of them may be needed if you use the W3NQN band pass filters.
> Array Solutions and DX engineering I think make these with all the safety
> features.    I built my 2X6 boxes because of the costs.
>
> Then you need something switch them,  Most people use rotory switches, 
> but
> be careful that it locks out if two radios attempt to connect together. 
> I
> preferr the Hamation touch screen switch and relay drivers.
>
> So Moral of the story,  Use one radio per band with the Orion.   Use Band
> Pass filters that are controlled by the Orion.
>
> *** Really Advanced ***
>
> I have played with S02R4V.  That is using both VFO's on both radios.
> Getting all the audio right is one thing,  then managing the software to
> alternate the VFO's are another.  I've found the A/B switch usefull 
> there..
> On 80 Meters and 160 Meters,  I've found it better to use two VFO's on the
> SAME Frequency, but with Different Antennas.  Works better than anything
> I've tried....
>
> It can get fun,  Start small, and work up.
>
> I'm still a novice by comparison to the big contestors.
>
> Best wishes,
> Rich
> K5SF
>
>
> Best wishes,
> Rich
> K5SF
>
>
>
>
>
>
>
>
>
>
>
>
> > From: "jack" <jfriend31@comcast.net>
> > Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
> > To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> > Subject: [TenTec] SO2R
> > Date: Fri, 28 Apr 2006 19:39:34 -0600
> >
> > anyone out there using 2 Orions with one computer and a switch box? what
> > switch box do you recommend and how do you keep the RF from blocking the
> > second radio?
> > thanks
> > jack
> > ak7o
> >
> >
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