Rigol DG822 - Page 110

RIGOL Chapter 2 Command System
2-96 DG800 Programming Guide
the carrier waveform components are suppressed on the basis of the normal amplitude modulation. At
this time, the modulated waveforms all 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 /*Enables the AM carrier waveform suppression function of CH1.*/
:SOUR1:AM:DSSC? /*Queries the on/off status of the AM carrier waveform suppression function of
CH1 and the query returns ON.*/
[:SOURce[<n>]][:MOD]:AM:INTernal:FREQuency
Syntax
[:SOURce[<n>]][:MOD]:AM:INTernal:FREQuency {<frequency>|MINimum|MAXimum}
[:SOURce[<n>]][:MOD]:AM:INTernal:FREQuency? [MINimum|MAXimum]
Description
Sets the AM modulation frequency of the specified channel.
Queries the AM modulation frequency of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
<frequency>
Real
2 mHz to 1 MHz
100 Hz
Remarks
 This command is only applicable to the internal modulation source
(
[:SOURce[<n>]][:MOD]:AM:SOURce).
 When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.
Return Format
The query returns the AM modulation frequency in scientific notation, with 7 effective digits. For example,
1.500000E+02 (the AM modulation frequency is 150 Hz).
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.*/