[Elecraft] [KX3] KX3 Beta firmware rev 1.48: Adjustable noise blanker level

[AC6JA at aol.com]

The ability of the "sticky" feature to keep the NB enabled when switching  
bands is worth the price of admition alone! 
Thanks for the upgrade!

Mike  AC6JA
 
 
In a message dated 5/9/2013 10:39:27 P.M. Pacific Daylight Time,  
n6kr at elecraft.com writes:

 
 
 
KX3 beta firmware rev 1.48 (with DSP  rev 1.20) is now available. See 
detailed information below.

You'll need the KX3 Utility application to  download and install firmware. 
For full instructions on loading beta releases,  refer to our KX3 software 
page:

http://www.elecraft.com/KX3/KX3_software.htm

DETAILS:   


The KX3's noise blanking level can now be  set using the knob above the NB 
switch (AF/RF-SQL). When NB is turned on (by  HOLDing the NB switch), the 
present setting (1-15) will be displayed on VFO B  for about 3 seconds. To 
select a new setting, rotate the knob before the  display times out. The 
display will then persist until you tap any switch. A  subsequent hold of NB will 
turn the NB off.


The NB setting is stored per-band, as is the NB's  on/off state.

Important  notes: 

-  The noise blanker is intended to reduce the amplitude of repetitive 
pulse  noise with a fast rise time. It will not suppress atmospheric noise. For 
that,  you may want to try NR (noise reduction). 

- Noise blankers will cause a certain amount of  intermod or shaping of 
signals when set too aggressively. We minimized this  with our new DSP 
algorithms, but you'll still want to use the lowest effective  setting. "NB 1" will 
do the least blanking and create essentially no  artifacts. Settings up 
through "NB 8" or so will still minimize artifacts. If  the noise is really 
strong, you can go all the way up to 15. These higher  settings are great for 
digging out weak signals, but can modify the sound of  strong signals somewhat 
and cause some pumping on a busy band. 








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