[TenTec] Questions about NR i.e. Orion

["OE3ZK Gerhard" <oe3zk@aon.at>]

Hi!

I observe many specialists on this reflector so that I cannot hesitate to ask a 
few WHY questions about DSP noise reduction.

Why " with weak signals it is harder for the DSP NR to determine what is noise 
and what is signal "?  

Why does a broader band of noise make the DSP  NR more effective ? Will a 
roofing filter reduce the effectiveness of DSP  noise reduction, do wideband 
I-Q signals improve it?

Why shouldn't we use a different NR techniques for different modes?

73
de Gert, OE3ZK
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