Louis,
Just went through this two weeks ago. Remove the diode it will work FBV
I have two VI+ rigs and had them both playing FB using FSK in the NAQP RTTY
test
73 Terry N4TB
If youAt 08:32 PM 7/28/2008 -0400, you wrote:
>I am trying to hook up my omni VI to use MMTTY.
>
>Made up an interface like this:
>
>DB9 | Omni VI
>---------------------------------------------------------------------------
>
>
>Pin 3 ---- >|Diode --- ---3.3K resistor ----- Mark/Space center pin
> |
> |
> 1.8K
>
> |
>Pin 5 --------------------------------------|--- Mark/Space Shield
>
>I measured the output on the Mark/Space center pin when I try and TX on
>MMTTY... I get A Square wave output from 0- ~5.5v at the RCA connector, but
>the OMNI VI does not transmit anything...
>
>Am I missing something?? And yes the radio is in FSK mode...
>
>Do I need a PTT line?
>
>Thanks,
>
>Lou
>KC2RVD
>
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>Version: 8.0.138 / Virus Database: 270.5.6/1577 - Release Date: 7/28/2008
>6:55 AM
>
Terry Burkholder N4TB
Karen Whall W4JA
n4tb@tnni.net
Visit us on the web at http://www.tnni.net/~n4tb
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