I believe you could (or can) do diversity receive with a pair of OMNI-VIs
(or a pair of any similar receivers which are stable and can track in
frequency together). The other requirement is two antennas at right angles
(in any plane) to each other, both having feed lines of the same electrical
length to achieve space or polarization diversity.
While I have seen advertisements for diversity receive using the FLEX 5000
and FLEX 6700 radios, I remember doing the same thing with a pair of Drake
R4-B receivers back in the 70s. The thing I remember was that as a signal
would start to fade on one, it would increase on the other. (see
http://www.w8ji.com/polarization_and_diversity.htm and
http://kc.flex-radio.com/knowledgebasearticle50386.aspx)
73 & DX,
Gary - AB9M
-----Original Message-----
From: Barry N1EU
Sent: Thursday, March 12, 2015 2:37 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] diversity receive with a pair of OmniVIs???
Don't laugh, but this would be easy to pull off in theory with a pair of
Corsairs driven by an external VFO. A DDS design (N4YG, G3TXQ) ideally
would be modified to incorporate two DDS boards driving the two Corsair
with an offset table to get the two rigs precisely aligned together.
One dream of mine is to one day build a DDS vfo with integrated CAT port
for the Corsair. Why not make it two CAT ports, coupled with the dual DDS
and have a full blown SO2R/diversity switchable setup? ULTIMATE Corsairdom
indeed.
73, Barry N1EU
On Tue, Mar 10, 2015 at 5:03 PM, Allan Taylor <k7gt.cw@gmail.com> wrote:
I have been watching the prices of OmniVIs drop dramatically so that it
likely wouldn 't pay to sell them off. Also, since the Orion II is no
longer
in production with no likely follow-on top-end xcvr (at least soon,
anyway),
I wonder if there is some software scheme or such to allow a pair of
OmniVIs to have their VFOs lock or track and thus provide a sort of
diversity receive.I have read in the manual that there is some sort of
'matrix' mode but am not sure what that would provide. Can someone out
there more knowledgeable address these questions?
--
73 Allan K7GT
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