[Elecraft] K3 - noise blanker works fine

[Edward R Cole]

OK, here is another testament to the NB in the K3.

I have been plagued by an intermittent local noise source on 2m which 
is so strong that it renders contacts 15 miles away nearly impossible 
to copy (on SSB).  I made a digital copy of the audio and sent it to 
a receiver engineer in Sweden (who created Linrad) for analysis.  He 
told me that it looks like a raw electrical arc and his sw FFT NB was 
unable to counter the noise.

I am running a NB digital mode (MAP65) on 2m-eme and its NB did lower 
the noise amplitude but with no appreciable improvement in SNR so 
only super-strong signals are decoded.

page two:

Having nothing to lose, I decide to try the NB in the K3.  I played 
with the setting and finally with it set to IF-MED-7 I achieved a 
reduction of about 4 s-units (>20 dB) in the noise level resulting in 
recovering about 70% of my normal eme sensitivity.  I am impressed!

73, Ed - KL7UW