Measuring dots and dashes in waveforms to read Morse code | picoCTF "morse-code" writeup Japanese explanation

This is an explanation of the Cryptography challenge "morse-code" from the CyLab Security Academy (formerly picoCTF). You are ...

Is Amateur Radio a Hobby for Old People? Seven New Ways to Enjoy It, Connecting to Space and IT, as Thought of by a Radio Shop Kid

The fun of radio waves rediscovered by JN1EEP, who opened a station at age 9, after a long hiatus. And today, images arrive ...