Amplitude modulation (AM) is the oldest method of transmitting human voice electronically. In an analog telephone conversation, the voice waves on both sides are modulating the voltage of the ...

Modulation is fundamental to electronic communications. The modulating signal might be analog in nature (voice or music) or digital bit streams. Most modern communication systems are digital, using ...

Common digital modulation techniques include amplitude-shift keying (ASK), frequency-shift keying (FSK), and phase-shift keying (PSK). ASK is the simplest of these techniques, and is used for low ...

Some of the most unusual modulation effects are those that use one signal (the modulator) to modulate another (the carrier). The most common of these is the ring modulator. This device multiplies the ...

A modulation scheme that’s gaining favor in many quarters is PAM4, and in this post we’ll look at the basics of PAM4 before turning to the test and analysis challenges it poses. PAM4 (four-level pulse ...

The design strategy for terahertz metasurfaces capable of achieving spin-selective functionality through complex-amplitude modulation is systematically categorized into four distinct parametric ...

There are two radio modulation schemes everyone should know. Amplitude modulation changes the amplitude — or ‘volume’, if you will — of a carrier frequency and turns all radio into ...

In 1906 the venerable method of amplitude modulation radio was born. While it would take several more years to reach commercial viability, this simple method of transmission would reign supreme for ...

Three of the most common digital modulation schemes you’ll see in specifications are Frequency Shift Keying (FSK), Amplitude Shift Keying (ASK), and LoRa (Long Range). To wrap my mechanically ...