Instructions

RIGOL Chapter 2 Command System
2-96 DG2000 Programming Guide
Example
:SOUR1:AM:INT:FREQ 150 /*Sets the AM modulation frequency of CH1 to 150 Hz.*/
:SOUR1:AM:INT:FREQ? /*Queries the AM modulation frequency of CH1 and the query returns
1.500000E+02.*/
[:SOURce[<n>]][:MOD]:AM:INTernal:FUNCtion
Syntax
[:SOURce[<n>]][:MOD]:AM:INTernal:FUNCtion {SINusoid|SQUare|TRIangle|RAMP|NRAMp|NOISe|USER}
[:SOURce[<n>]][:MOD]:AM:INTernal:FUNCtion?
Description
Sets the AM modulation waveform of the specified channel.
Queries the AM modulation waveform of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{SINusoid|SQUare|TRIangle|RAMP|NRA
Mp|NOISe|USER}
Discrete
SINusoid|SQUare|TRIangle|RAM
P|NRAMp|NOISe|USER
SINusoid
Remarks
 This command is only applicable to the internal modulation source.
 When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.
 SQUare: 50% duty cycle; TRIangle: 50% symmetry; RAMP: 100% symmetry; NRAMp: 0% symmetry;
USER: the arbitrary waveform selected for the specified channel.
Return Format
The query returns SIN, SQU, TRI, RAMP, NRAM, NOIS, or USER.
Example
:SOUR1:AM:INT:FUNC SQU /*Sets the AM modulation waveform of CH1 to Square.*/
:SOUR1:AM:INT:FUNC? /*Queries the AM modulation waveform of CH1 and the query returns SQU.*/
[:SOURce[<n>]][:MOD]:AM:SOURce
Syntax
[:SOURce[<n>]][:MOD]:AM:SOURce {INTernal|EXTernal}
[:SOURce[<n>]][:MOD]:AM:SOURce?
Description
Sets the AM modulation source of the specified channel to internal (INTernal) or external (EXTernal)
modulation source.
Queries the AM modulation source of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{INTernal|EXTernal}
Discrete
INTernal|EXTernal
INTernal
Remarks
 DG2000 can receive modulating waveform from the internal or external modulation source.
 When the internal modulation source is selected, the modulation waveform can be SINusoid, SQUare,
TRIangle, RAMP, NRAMp, NOISe, or USER. The default is SINusoid. NOISe can be used as the
modulation waveform but cannot be used as carrier waveform.