We usually think of the RTL-SDR as a low-cost alternative to a “real” radio, but this incredible project spearheaded by [Rodrigo Freire] shows that the two classes of devices don’t have to be mutually ...

Radio Luxembourg in its early days at the 1937 International Exhibition of Arts and Techniques in Paris. (Photo by Thérèse Bonney, used under a Creative Commons 4.0 license.) On 234 kHz, the new year ...