Source[<n>]][:mod]:am:dssc – RIGOL DG1000Z Series User Manual

Page 130

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RIGOL

Chapter 2 Command System

2-118

DG1000Z Programming Guide

[:SOURce[<n>]][:MOD]:AM:DSSC

Syntax

[:SOURce[<n>]][:MOD]:AM:DSSC {ON|1|OFF|0}

[:SOURce[<n>]][:MOD]:AM:DSSC?

Description

Turn on or off the AM carrier waveform suppression function of the specified

channel.
Query the on/off status of the AM carrier waveform suppression function of the

specified channel.

Parameter

Name

Type

Range

Default

[<n>]

Discrete

1|2

1

{ON|1|OFF|0}

Bool

ON|1|OFF|0

OFF

Explanation

 DG1000Z supports the normal amplitude modulation and double sideband

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

modulation, the modulated waveform contains the carrier waveform

components. As the 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 point, all the modulated waveform carry

information. This method is called double sideband suppressed carrier

modulation.

 When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related

parameters of CH1 by default.

Return Format

The query returns ON or OFF.

Example

:SOUR1:AM:DSSC ON /*Turn on the AM carrier waveform suppression function

of CH1*/

:SOUR1:AM:DSSC? /*Query the on/off status of the AM carrier waveform

suppression function of CH1 and the query returns

ON*/

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