[Elecraft] K3 noise blanker

[ab2tc]

Hi,

One of the main reasons for me buying the K3 was the demonstrated ability to
eliminate pulse noise emanating from power lines and ignition noise (I
listened to before/after audio clips demonstrating this on the web). The NB
is very effective and does not distort signals at all unless they are
really, really strong (S9+20dB++). I have never even tried the NR function -
frankly I don't understand what it's supposed to do. Removing white noise
from a signal is theoretically impossible and yet that's seems to be what
the expectation of the NR is. Surprisingly most of the effectiveness of the
NB on my pulse noise is coming from the DSP portion of the NB, although I
use a combination of the two (setting t2-4,MED3), as suggested by many.

Knut - AB2TC


Stephen Prior wrote:
> 
> This is a 'me too'.
> 
> Having, in waiting for my K3, read all sorts of accolades for the NB and
> NR,
> I feel, now that I have the radio in front of me, somewhat deflated.  The
> NB
> is, it seems to me, no better than many others I have used (eg TS-850) and
> the NR does not seem, to me at least, to be any better than that on the
> TS-480 this K3 replaced.  And, I have experimented with all the various
> settings available and am running the latest firmware.
> 
> Having said that, I remain 95% delighted with the K3.  The strong signal
> handling is fantastic, I like the ergonomics and the tx audio is simply
> excellent.  I would not swap it for any other radio.  But, the NB and NR
> have not lived up to my (maybe unrealistic) expectations.
> 
> 73 Stephen G4SJP 
> 
> 
> 


-----
AB2TC - Knut
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