Rigol DS1000Z Series Programming Guide

Chapter 2 Command System RIGOL
DS1000Z Programming Guide 2-73
[:SOURce[<n>]]:MOD:AM[:DEPTh]
Syntax [:SOURce[<n>]]:MOD:AM[:DEPTh] <depth>
[:SOURce[<n>]]:MOD:AM[:DEPTh]?
Description Set or query the AM modulation depth (indicates the amplitude variation degree and is
expressed as a percentage) of the specified source channel. The default unit is %.
Parameter
Name
Type
Range
Default
[<n>] Discrete {1|2}
If omitted, the operation is
performed on source 1 by default
<depth>
Real
0 to 120
100
Explanation In 0% modulation, the output amplitude is half of the carrier waveform amplitude.
In 100% modulation, the output amplitude is equal to the carrier waveform amplitude.
In >100% modulation, envelop distortion which should be avoided in the real circuit will
occur and the output amplitude of the instrument would not exceed 5Vpp (50Ω load).
Return
Format
The query returns an integer.
Example
:MOD:AM 80
[:SOURce[<n>]]:MOD:AM:INTernal:FREQuency
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency
Syntax [:SOURce[<n>]]:MOD:AM:INTernal:FREQuency <frequency>
[:SOURce[<n>]]:MOD:AM:INTernal:FREQuency?
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency <frequency>
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency?
Description Set or query the modulating waveform frequency of AM or FM of the specified source
channel. The default unit is Hz.
Parameter
Name
Type
Range
Default
[<n>] Discrete {1|2}
If omitted, the operation is
performed on source 1 by default
<frequency> Real 1Hz to 50kHz 1kHz
Explanation  Sending the [:SOURce[<n>]]:MOD:TYPe command can set the modulation type.
 AM: amplitude modulation. The amplitude of the carrier waveform varies with the
amplitude of the modulating waveform.
FM: frequency modulation. The frequency of the carrier waveform varies with the
amplitude of the modulating waveform.
 Sending
[:SOURce[<n>]]:MOD:AM:INTernal:FUNCtion or
[:SOURce[<n>]]:MOD:FM:INTernal:FUNCtion can selelct Sine, Square, Ramp or
Noise as the modulating waveform.
Return
Format
The query returns an integer.
Example
:MOD:AM:INTernal:FREQuency 100

Rigol DS1000Z Series Specifications

General

Brand	Rigol
Model	DS1000Z Series
Category	Test Equipment
Language	English