The data is imposed on the waves through digital modulation.

In digital modulation, an analog carrier signal is modulated by a discrete signal.

The most fundamental digital modulation techniques are based on keying:

The most common digital modulation techniques are:

It is for this reason that, in the context of digital modulations, digitally modulated signals are usually referred to as carriers.

By switching the sound field on and off very rapidly the deflected beam appears and disappears in response (digital modulation).

Higher-order modulation is a type of digital modulation usually with an order of 4 or higher.

Modulation order can only be defined for digital modulations.

The voltage fluctuations are also translated into binary data and used to control digital modulation.

Due to the small size of the resonator, digital modulation can be very fast (up to 500 MHz).