On 12/5/2010 7:03 AM, Hank Garretson wrote:
Absolutely none! Save your money. Run RS-232 from computer to Omni. Run
audio-in and out from Omni to computer sound card. Build a one-transistor
CW interface.
YES! I ran a simple interface like Hank describes with my Omni V with
the N4PY mod, and it worked VERY well. I used it with WriteLog, but it
would work with any good logging or control program. All you need is a
cable wired with the right pins on the right connector on both ends. I
also used it with Ham Radio Deluxe.
Study the OmniV manual. For radio control, you only need the wires that
go to pins 2, 3, and 5 on the DB9. To send CW, you also need pin 4 and
pin 5 to the single transistor interface.
See http://audiosystemsgroup.com/HamInterfacing.pdf This doesn't talk
about the OmniV specifically, but the only difference is that the Omni V
has the older style 25-pin connector. And, of course, set the
logging/control program as Carl recommends.
73, Jim K9YC
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