RIGOL
2-108
DG900 Programming Guide
Return Format
The query returns SIN, SQU, TRI, RAMP, NRAM, NOIS, or USER.
Example
:SOUR1:PM:INT:FUNC SQU /*Sets the PM modulation waveform of CH1 to Square.*/
:SOUR1:PM:INT:FUNC? /*Queries the PM modulation waveform of CH1 and the query returns SQU.*/
[:SOURce[<n>]][:MOD]:PM:SOURce
Syntax
[:SOURce[<n>]][:MOD]:PM:SOURce {INTernal|EXTernal}
[:SOURce[<n>]][:MOD]:PM:SOURce?
Description
Sets the PM modulation source of the specified channel to internal (INTernal) or external (EXTernal)
modulation source.
Queries the PM modulation source of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{INTernal|EXTernal}
Discrete
INTernal|EXTernal
INTernal
Remarks
DG900 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.
When the external source is selected, the generator receives the external modulating signal from the
rear-panel [Sync/Ext Mod/Trig/FSK] connector. At this time, the phase deviation of the modulated
waveform is controlled by the ±5 V signal level of the connector. For example, if the phase deviation is
set to 180°, +5 V signal level corresponds to a 180º phase variation. The lower external signal levels
produce less deviation.
When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.
Return Format
The query returns INT or EXT.
Example
:SOUR1:PM:SOUR EXT /*Sets the PM modulation source of CH1 to external modulation source.*/
:SOUR1:PM:SOUR? /*Queries the PM modulation source of CH1 and the query returns EXT.*/
Summary of Contents for DG952
Page 2: ......
Page 168: ......
Page 181: ...Chapter 4 Programming Examples RIGOL DG900 Programming Guide 4 7 ...
Page 185: ...Chapter 4 Programming Examples RIGOL DG900 Programming Guide 4 11 ...
Page 187: ...Chapter 4 Programming Examples RIGOL DG900 Programming Guide 4 13 ...
Page 199: ...Chapter 4 Programming Examples RIGOL DG900 Programming Guide 4 25 ...
Page 200: ......