[Elecraft] K3 NR needs improvement

eric manning emanning at cs.uvic.ca
Thu Sep 5 00:33:23 EDT 2013


I'm a CW op, I'm baffled by the comments critical of the K3 NR, APF and 
notch filter.

The  NR generally removes ALL random noise, meaning that the rcvr is 
silent in the absence of signals. Admittedly,  It does get a little 
upset in the presence of
many strong signals, so I usually turn  it off in pileups.

The notch filter can be tuned manually to  silence  one interfering CW 
signal.
The APF  is a bit tricky,  you need to use fine tuning [ 3 digits after 
the VFO decimal point],
tune SLOWWLLY and listen for the weak signal to pop out  of the noise. 
But pop  out it does.

Eric VA7DZ

-- 
"BC is a prosperous, well-regulated place featuring Socialized Medicine,
bilingual highway signs and Mounties."

    --Neal Stephenson, American novelist
  


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