I have the O II, 2.037J firmware. The manual says that different
noise reduction settings affect how long the DSP takes to decide
what's nose and what's signal, but that the end result is the same. I
thought this odd, because it seems there's no point in using anything
but the "fastest" setting.
In playing with it on CW, this doesn't appear to be the case:
different settings definitely result in different amounts of noise
reduction, and the lower settings seem to do their job immediately,
but not as aggressive as the higher settings. Intuitively, this is
what I'd expect.
Has the NR changed in later firmware versions and the manual failed
to keep? Or, has the manual always been in error?
Cheers,
Kim Elmore, N5OP
|