[Elecraft] Elecraft CW Net Announcement

kevin kevinr at coho.net
Sat Oct 26 21:10:11 EDT 2024


Good Evening,

    I think there was a little sun this week; it did not last long.  
Mostly fog and more fog with light to heavy rain.  The bracken fern are 
turning bronze, many leaves are falling.  We are in the rainy season.

    The sun awoke from a short nap.  Two or three X class flares from a 
new sunspot group.  Large and active spots are appearing in a chain.  
Solar flux is up too.  A 'mild' CME hit the Earth but more, bigger ones 
are on the way.  Should be noisy tomorrow.  More autumn thunderstorms 
with a steady hiss from the sun.  QSB should be up too.

Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
   7047 kHz at 0000z Monday (5 PM PDT Sunday)

    73,
       Kevin. KD5ONS



Reminder: next week some of the US changes their clocks.  We will do the 
same.


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If I need to graph a data file I use gnuplot.  It is a light, command 
line tool, which runs from scripts.  This is the script I have been 
using a lot lately:

plot 'dt.dat' using 1:4 title 'Carnivore' with line, 'dt.dat' using 1:3 
title 'Herbivore' with line, 'dt.dat' using 1:2 title 'Plant' with line

But this is fancy.  The default settings can work just fine. plot 
'dt.dat' using 1:4 is enough.

plot reads the dt.dat file and displays whatever is in column 1 as the X 
coordinate, and column 4 data as the Y coordinate. Stringing commands 
together, with commas in between, gives me a three value chart.  If you 
don't specify line you get the default icons at each data point.  Kind 
of yucky for what I am doing.  The other bit is title 'Carnivore' to 
label the chart's legend.

http://gnuplot.info/  For more information, downloads, descriptions, and 
demos.  I have used it for twenty years if I am not mistaken.  It has 
been well maintained over that time.






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