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Carrier waveform suppression – RIGOL DG1000Z Series User Manual

Page 88

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RIGOL

Chapter 2 Front Panel Operations

2-38

DG1000Z User’s Guide

Carrier Waveform Suppression

DG1000Z supports the normal amplitude modulation and double sideband

suppressed carrier (DSB-SC) amplitude modulation. In the normal amplitude

modulation, the modulated waveform contains carrier waveform components.

Because carrier waveform components carry no information, the modulation is less

efficient. In order to improve the modulation efficiency, the carrier waveform

components are suppressed on the base of the normal amplitude modulation. At this

time, all modulated waveform carry information. This method is called double

sideband suppressed carrier modulation. By default, DG1000Z works in the normal

amplitude modulation and users can enable the double sideband suppressed carrier

modulation through pressing the menu key DSSC and selecting “On”.