lcamtuf put together an excellent primer on how radios work. Their goal was to “provide an introduction to radio that’s free of ham jargon and advanced math” and I think they succeeded. It’s well worth a review, even if you’re an experienced ham. The video below is one of the excellent demos in the article:

W2AEW put together an excellent discussion of CW on his youtube channel. His video teaches how to calculate the occupied bandwidth (OBW) of a morse conversation.

Manoel shared his efforts to get M17 working on ICOM IC-F5060 mobile radios and IC-F3162 HTs. This is a really cool effort. More hardware that can run M17 the better! I’m also interested in the breakout boards. I bet you could build an APRS digipeater, CATS igate, or other digital radio goodies inside the radio body!

Hackaday shared a video from the National VOA Museum of Broadcasting about the history of the 500kW WLW AM broadcast transmitter. WLW was sometimes called “the nation’s channel” because it was so powerful you could hear it in most of the United States. The tubes in this transmitter are amazing!