Vary the Amplitude In AM modulation, the voltage (amplitude) of the carrier is varied by the incoming signal. In this example, the modulating wave implies an analog signal.

More generally, the amplitude of the overall signal is varied in line with the incoming audio or other modulating signal, as shown in Figure 3-2. Here, the envelope of the carrier can be seen to ...

AM, or amplitude modulation, was the earliest way of sending voice over radio waves. That makes sense because it is easy to modulate a signal and easy to demodulate it, as well.

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 ...

Modern Modulation Techniques Jul 1, 2014 9:00 AM, Jeremy Ruck, PE Modern society is definitely more mobile than it was several decades ago. Accompanying the increased mobility is a corresponding ...

To implement amplitude modulation (AM), we’d apply the modulating signal as a(t) and set Θ(t) to zero. Similarly, a phase-modulated (PM) signal would have a(t) set to a constant and the modulating ...

New modulation schemes don’t come along very often. In fact, it has been years…decades really…. since any new modulation method has been invented. Remember there are only three basic ways a ...

As Soundfly’s Flypaper reports, this is known as amplitude modulation, hence the AM. For FM radio stations, the amplitude remains the same, while the frequency—the number of completed wave ...