Early radio receivers worked on a principle called Tuned Radio frequency (TRF), patented in 1916. They weren’t very easy to use, requiring each stage to be tuned to the same frequency (until ganged ...

In a world with software-defined radios and single-chip receivers, a superheterodyne shortwave radio might not exactly score high on the pizzazz scale. After all, people have been mixing, filtering, ...

Maxim Integrated adds another device for a much effective RF design as it introduces the MAX7042. The MAX7042 is a low power superheterodyne receiver that employs Frequency Shift Keying (FSK). This ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. A "super-heterodyne" radio receiver ...