Published in Nature, scientists at King's College London, Harvard University, UC Berkeley and others have shared the ...

Compared to the simple diode needed to demodulate AM radio signals, the detector circuits used for FM are slightly more complicated. Wrapping your head around phase detectors, ratio detectors ...

Scientists have developed a cosmic car radio that could tune into the frequency of axions, a prime dark matter suspect.

Fast radio bursts (FRBs) are among the most puzzling astronomical phenomena. These brief yet intense bursts of radio waves, lasting just milliseconds, originate from deep space. Scientists first ...

His starting point was a design using a hand-wound air-core coil, a germanium diode for a detector, and a variable capacitor that was probably scrapped from an old radio. The coil had three ...