[TenTec] Noise Reduction Setting

Chas Nagel cnagel at sbcglobal.net
Mon Dec 4 12:07:23 EST 2006


Kim,
   
  Under the same conditions when the NR is on in any position I have raspy CW reception. Do you experience the same with your Orion II NR?
   
  Charles, K0CW

Kim Elmore <cw_de_n5op at sbcglobal.net> wrote:
  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

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