he was able to make an RF detector that works reasonably well. The microcontroller running the code is an ATtiny13 on a Sparrow board. He’s using an everyday LED as a detector diode and an ...

From primitive crystal detectors to today's advanced exponential logarithmic amplifiers, RF power detection has come a long way. Resources Directory Webinars CAD Models Video Blogs Advertise ...

A crystal radio is basically a high Q resonator tied to an antenna and an envelope detector. These days the ... about crystal radios is that no active RF amplification is used.