A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

***This weekend’s pace car is a Porsche 718 Cayman GT4 RS with a livery reminiscent of the Porsche Penske RS Spyder that made ...

Explore the world of RF directional couplers and their role in precise microwave measurements for engineers and designers.

Airborne Platforms,Altitude Sensor,Antenna Pair,Beat Frequency,Coaxial Cable,Data Logger,Delay Line,Digital Radio,Digital Signal Processing,Doppler Frequency,Echo ...

All the latest news, views, sport and pictures from Dumfries and Galloway. We bring you the best coverage of local stories and events from the Dumfries & Galloway Standard and Galloway News ...