Another way is to take a junk box DB25 switchbox and remove the
multiwafer switch and wire the necessary pins on the connectors in
parallel. This solved the problem of connecting the Omni VI Plus,
remote knob, auto tuner, Herc amp and computer together. Easy to
do and less expensive than a "Y" cable. All the pin-out info is in
the manual.
73 de Greg, K7KJ
----- Original Message -----
From: "John, KE5C" <ke5c@vvm.com>
To: <tentec@contesting.com>
Sent: Tuesday, May 29, 2001 10:56 AM
Subject: Re: [TenTec] Need 25 Pin Y Cable
>
> > Need a 25 pin Y cable so that I can attach remote tuning knob and
computer
> > to Omni VI. Any sources or extras out there? Thanks,
> > Dennis/N4DD
>
> You can also make one which is what I ended up doing. You only need three
> pins going to the computer: GND (1), TXD (2), and RXD (3); and four to
the
> RM301: +5 (16), phase1 (6), GND(7), and phase2 (8). You can check the
pinouts
> by looking at figure 4-26 in the Omni VI manual for the TX audio board
> schematic. I didn't have a print on my used RM301, but you can just look
at
> the encoder and figure the pinout easily - if I recall it might even match
pin
> for pin the DB-25 on the Omni - but you need to check. Hacking an
existing
> cable is hard since they all come now with molded plugs it seems, but you
can
> still get DB-25 connectors and hoods at Radio Shack. So far, no RFI
problems
> with an IBM ThinkPad running TR-LOG.
>
> 73, de ke5c, op john
>
>
> --
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> Problems: owner-tentec@contesting.com
>
>
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