Lyle, 

Is the noise reduction more or less aggressive with a larger 
number of taps (length) of the filter? 

73, 

   ... Joe, W4TV 
 

> -----Original Message-----
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lyle Johnson
> Sent: Wednesday, August 26, 2009 4:23 PM
> To: Bob Cunnings
> Cc: Elecraft
> Subject: Re: [Elecraft] K3 NR
> 
> 
> > ...For now I'll treat the parameter as an opaque
> > series of magic numbers.
> 
> The way the new beta NR works is:
> 
> Fx-y
> 
> x selects the length of the filter.
> 
> F1 = 121 taps, F2 = 91 taps, F3 = 61 taps, F4 = 31 taps
> 
> (The Beta 3.25 release used FIR filters of 61 taps.)
> 
> y selects values of Beta (gain), decay, and delay (how long the NR 
> algorithm waits to process a signal)
> 
> (The Beta 3.5 release used the "x" parameter for these selections)
> 
> 73,
> 
> Lyle KK7P
> 
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