[Elecraft] K3 Noise blanker

[David Woolley (E.L)]

Gary Smith wrote:

> I have a Corsair II whose noise blanked usually does a fair job of 

> My question for this forum is to ask how satisfied you are with the 
> noise reduction in the K3 as opposed to your experiences with other 

You are confusing two different concepts.  I believe the K3 supports both.

In its terminology, noise blanking is used to elimenate broadband spikes 
and basically uses a very broadband detector, early in the receiver, to 
mute the signal later in the receiver, where it has suffered enough 
group delay to allow the blanker to react.  It needs to be done in the 
analogue processing, at least when digitising at less than 10s of Ms/s

Noise reduction is intended for relatively narrow band, or continuous 
sources.  I believe it includes an automatic notch filter, but it may 
also involve blanking audio sub-bands with little energy, etc.  It's 
done in the software defined part of the system.


-- 
David Woolley
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