I used an NIR-12 with my Omni VI Opt 3 for several years. I plugged it
into the speaker out jack on the back, which is how it was intended to
be used.
The NIR-12 was helpful on SSB, where it did a better job of eliminating
QRN than did the TT inboard DSP using the NR button. But on CW, the
NIR-12 introduced a time delay on the sidetone that made it difficult
for me to send code. So I routinely used it on SSB but not CW.
I haven't reinstalled the NIR-12 since I moved to my current QTH.
Probably I should do that, because it's a good unit. Thanks for the
reminder!
Jim N4AL
Ken Brown wrote:
> Hi all,
>
> Also I wonder about connecting an external audio DSP unit such as a JPS
> NIR-12. This unit has various front panel controllable functions, which
> presumably could make it work better than a DSP that only runs one fixed
> algorithm, as I suspect the Omni VI's does. Or maybe it would just be
> more knobs to twiddle with no real performance advantage. I suppose if I
> were to try out the NIR-12 with the Omni VI, I would want to get audio
> from the Omni VI BEFORE it has gone through the Omni VI's DSP, and not
> from either the Omni's speaker output or "FIXED AUDIO", which are both
> AFTER the Omni's DSP. I am interested in hearing from anyone who has
> already tried an outboard audio DSP unit with an Omni VI.
>
> Thanks,
>
> 73 DE N6KB
>
>
>
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