Diverse well describes the myriad digital modulation schemes used in modern voice and data communications. The alphabet soup of terminology extends well beyond the familiar QAM ...

But progress marches on, and with it came things like trunking radio and digital modulation, requiring ever more sophisticated scanners, often commanding eye-watering prices.

STMicroelectronics has unveiled new class-D automotive audio amplifiers for smart-cockpit applications, engineered for tiny overall dimensions and with a digital input that simplifies circuit design.