[Elecraft] K3S Odd ALC Behavior

Bob McGraw K4TAX rmcgraw at blomand.net
Fri Aug 4 13:54:27 EDT 2017


I posted a video in my Dropbox at the link below.    It shows 4 ALC bars 
solid on and the 5th flickering.

https://www.dropbox.com/s/an06t907tx8xgid/Video%20Aug%2004%2C%208%2012%2025%20AM.mov?dl=0 


I find that anytime where any the controls are running at near a minimum 
value, the granularity of the steps is significant.  {i.e. big steps = 
big changes}    Where as operating near mid range to upper mid range,  
one has better control of the levels, meaning there is less change per 
step.

Also with WSJT-X I find that trying to grab the PWR slider and move it 
up or down with the mouse is a bit of a challenge.  The mouse 
acceleration will cause significant changes.    It is easier to position 
the mouse cursor on the line and click above or below the slider to 
attain a fine adjustment.   This way it will only move to the next 
step.  Don't hold the left mouse button down or the slider will move to 
the position of the mouse cursor.

As stated before, there's three places where the levels must be adjusted 
and they do interact as they are fundamentally in series.

(a)   Speaker level -  nominally about 25 to 35

then to

(b) WSJT-X PWR level - nominally about mid to upper mid range

then to

(c) K3S Line gain - 25 to 35


73

Bob, K4TAX

K3S s/n 10163




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