100 years ago today 32 year-old Edward Appleton was able to experimentally confirm the existence of the Heaviside Layer[1] and its height, with the help of the BBC Bournemouth station 6BM. This confirmation that radio waves could "bounce off" the upper atmosphere under the right circumstances opened the way for true worldwide radio communication using short waves -- previously any frequency higher than today's medium-wave band had been considered "useless".

[1] The term "ionosphere" was not coined until two years later, by Scottish physicist Robert Watson-Watt.

#hamradio

I need to get some motivation to retry cw learning... Maybe a 100 days challenge could help 🤔

Just 15 or 20 minutes each day with Koch method.

Any candidates here to share progress and motivation on masto?

A new hashtag #CW100days to follow!

I plan to start on Monday (March 20th), you have time to get some info about Koch method.

Maybe with https://lcwo.net/ or Morse trainer app
https://github.com/eoineoineoin/ecwt

RT if you like cw or want to learn it