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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