caspencer @caspencer
for some reason lately I’ve had this fascination with towers (of the RF and/or power variety) youtube.com/watch?v=9b9Lah… youtube.com/watch?v=7Jm8fk…
Now, those are some towers!
Jeff Davis @ke9v
ZEN AND THE ART OF RADIOTELEGRAPHY – free download qsl.net/ik0ygj/enu/ind…
Sverre Holm, LA3ZA @LA3ZA
Studies on Morse code recognition . – A low pitch frequency is beneficial la3za.blogspot.no/2013/10/studie
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