Essentials about phase modulation, PM, including how phase is used to carry both analogue and digital signals as modulation.
Essentials of designing field effect transistor or FET circuits: circuit types, design methodologies, equations and techniques.
All the essentials about quartz crystals / quartz crystal resonators, technology, operation and how they are used in electronic circuits as a resonant element for oscillators and filters.
Tutorial, overview of the essentials of GSM handover or handoff from one cell to another and detailing types of handover and methodologies used.
Details, methods and key tips for using a spectrum analyser to measure pulsed signals.
A simple to use calculator that converts two power levels into the decibel ratio.
Hans-Peter Lüdeke of Murata Europe looks at serial interfaces which are in common use and how to make their implementation more straightforward.
LED technology is now being used for many applications not envisaged years ago. One variant of LED technology namely AMOLED, active-matrix organic light-emitting diode, technology is a form that is being used increasingly.