[TenTec] Computer Interface for the Omni VI

David Drake drakes at psci.net
Tue Jun 30 08:56:27 PDT 2009

Thank you very much for the good information.  And yes I have things wired 
up correctly and no RFI issues are apparent.  I looked over your tutorial 
briefly and will go back over it again.  I've downloaded HRD as well as the 
DXLab and am currently trying to get them set up correctly to decide which 
works best for me.  I've still got a lot to figure out, but will get there 
eventually.  Another program I have tried is Commcat.  It also seems to work 
well, but not free.  I had it working fine, and then it simply quit reading 
the radio.  Checked for wiring issues, and found none.  I may go back to 
that one and go through the setup again, but it looks like DXLab is 
currently in first place.  I need to settle on one and dig in.
Thanks again,
David Drake

----- Original Message ----- 
From: "Jim Brown" <k9yc at audiosystemsgroup.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Tuesday, June 30, 2009 10:32 AM
Subject: Re: [TenTec] Computer Interface for the Omni VI

> David & Chris Drake wrote:
>> Just wondered if straight through cabling (db25 to db9) is the preferred 
>> option?
>> (I just want to read the transciever with minimal rig control)
> All you need is a straight through connection of the wires that are on
> pins 2 and 3 of the DB9 to their respective pins on the DB25, plus a
> connection from shell of the DB9 to shell of the DB25. Using the shell
> to shell connection in place of the so-called signal ground pin
> eliminates the "pin 1 problem" that can cause RFI.
> So-called "level converters" (really a polarity inverter) are needed
> ONLY by contesting programs to send CW (on pin 4 of the DB9) and PTT (on
> pin 7 of the DB9). If you're not going to do contesting, you don't need
> them.
>> And the second question, is what programs seem to work the best with the 
>> Omni VI?
> For YOUR interest, I strongly recommend the DXLab Suite of programs.
> DXKeeper is the logger, Commander is simple rig control, DXView maps a
> call sign and gives you azimuth headings and distance. They work very
> well, and they are FREE!  DXKeeper keeps track of awards, QSLs, etc.
> If you want fancier rig control, check out Ham Radio Deluxe, written by
> a British ham living in Switzerland. I met him at Dayton five years ago
> in the QRP hotel. Good guy, excellent software. It is also free, and
> also has a logger. Up to now, his logger has not been as good as
> DXKeeper, but he's been working on upgrading it over the last year or so.
> If you want to do contesting, use N1MM (also FREE) for contest operation
>  and logging, then export the contest file to your other logger.
> For more on rig interfacing, see my tutorial at
> http://audiosystemsgroup.com/HamInterfacing.pdf
> 73,
> Jim Brown K9YC
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