One of the best ways to learn about radios is to build your own, even in the age of cheap SDR dongles. [Aniss Oulhaci] demonstrates this with a simple HF SDR receiver built on a breadboard.

Making a software defined radio (SDR) receiver is a relatively straightforward process, given the right radio front end electronics and analogue-to-digital converters. Two separate data streams ...

At the Forum, NHK presented a "software-defined radio receiver" that can receive both analog and digital radio broadcasts. ABU participating countries are examining various digital radio schemes.