Older hackers will remember that a crystal set radio receiver was often one of the first projects attempted. Times have changed, but there’s still something magical about gathering invisible signals ...

There are many ways to build a radio receiver, but most have a few things in common, such as oscillators, tuned circuits, detectors, mixers, and amplifiers. Put those together in the right order and ...

Researchers have used the latest wireless technology to develop a new radio receiver for astronomy. The receiver is capable of capturing radio waves at frequencies over a range several times wider ...

Development of laser-based display system funded by DARPA and NIST’s On Chip program. Scientists at U.S. research agency NIST have demonstrated using rubidium atoms in a Rydberg state as receivers ...

While many projects and initiatives may have been sidetracked by the global pandemic, a major initiative of the National Radio Systems Committee wasn’t among them. The group’s latest effort, released ...

In 1924, a radio receiver built for the battlefields of World War I tested the idea that humans were not alone in the solar system, heralding a century of searches for extraterrestrial life.