[Elecraft] [KX3] equalization in DATA-A mode?

Jim Brown jim at audiosystemsgroup.com
Sun Aug 30 18:57:19 EDT 2015


On Sun,8/30/2015 2:31 PM, Paul Dickson wrote:
> A picture of this is athttp://imgurl.org?di=5S2I

First, turn off "Flatten," which will get rid of the yellow and red 
peaks at either end.

Second, set Start to 250 or 300 Hz and Bins/Pixels to 4 or 5, so that 
the display shows only the bandwidth of your IF (in this plot, audio 
from 350 Hz to 3.55 kHz). Audio frequencies outside these limits don't 
get through your IF and roofing filters, so don't waste DSP on them.

These comments apply specifically to WSJT-X, but the same concepts are 
at play in FLDIGI (which I don't use, so can't help you with).

73, Jim K9YC


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