Rigol DS1054Z Programming Guide

Chapter 2 Command System RIGOL
MSO1000Z/DS1000Z Programming Guide 2-137
[: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.
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 /*Set the AM modulation depth of source 1 to 80%*/
:MOD:AM? /*The query returns 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, Tr iangle, or
Noise as the modulating waveform.
Return
Format
The query returns an integer.
Example
:MOD:AM:INTernal:FREQuency 100 /*Set the modulating waveform frequency of AM
of source 1 to 100Hz*/
:MOD:AM:INTernal:FREQuency? /*The query returns 100*/

Rigol DS1054Z Specifications

General

Channels	4
Bandwidth	50 MHz
Sample Rate	1 GSa/s
Memory Depth	24 Mpts
Display	7 inch TFT LCD (800x480)
Vertical Sensitivity	1 mV/div to 10 V/div
Time Base Range	5 ns/div to 50 s/div
Vertical Resolution	8 bits
Trigger Types	Edge, Pulse, Video, Slope
Connectivity	USB Host, USB Device, LAN
Input Impedance	1 MΩ
Power Supply	100-240 VAC, 45-440 Hz