He’s using an everyday LED as a detector diode and an internal pull ... across the LED will start to discharge. If there is an RF signal present, the discharge voltage will be less than the ...

Learn more › Got big travel plans coming up? Don’t leave home without this hidden camera, bug, GPS, and RF detector. This handy gadget ensures no prying eyes spying on your hotel or rental ...

Compared to the simple diode needed to demodulate AM radio signals, the detector circuits used for ... pulse at a set point in the received FM signal’s waveform, usually at the zero-crossing ...

detector, incorporating advances in radio frequency (RF) detection and other innovations learnt from active use by the Armed Forces of Ukraine (AFU) in the war against Russia. Kara Dag ...