setup a CW COPY BY EAR practice session on the VLF band using unixCW, Gstreamer & 2 Ferrite Antennas

[Chuck aa0hw]

unixCW script to send a text file that keeps repeating until you hit/hold Ctrl-C until it stops... ~/Downloads/unixcw-3.5.1/src/cw

$ while true; do (./cw -d hw:0,1,0 -f YOURTEXTFILE.txt -w 40 -k 50 -t 20200 -v 8); sleep 1; done

NOTE:

-t = frequency that unixCW sends out at...

-w = wpm -

v = volume

-k = weight unixCW SCRIPT

uses virtual audio cables for UNIXcw output and gstreamer script captures the virtual audio cable VLF from unixCW and forwards it immediately to the alsa pi headphone jack output....which then goes to a CLASS D amp and output of amp to input of a FERRITE ROD TRANSMIT ANTENNA ON Rx SIDE, another ferrite antenna is used and connects directly to the laptop's mic input jack...then goes to 3 SDR modules from RECRI KEYER HILBERT CELL, BandPass filter, and lo-mixer module(to adjust cw pitch) https://github.com/recri/keyer https://unixcw.sourceforge.net/download.html