RIGOL DG1000Z Series - Manual (Page 136)

RIGOL Chapter 2 Command System
2-124 DG1000Z Programming Guide
[:SOURce[]][:MOD]:ASKey:SOURce
Syntax [:SOURce[]][:MOD]:ASKey:SOURce {INTernal|EXTernal}
[:SOURce[]][:MOD]:ASKey:SOURce?
Description Set the ASK modulation source of the specified channel to internal (INTernal) or
external (EXTernal) modulation source.
Query the ASK modulation source of the specified channel.
Parameter Name Type Range Default
[] Discrete 1|2 1
{INTernal|EXTernal} Discrete INTernal|EXTernal INTernal
Explanation  DG1000Z can receive the modulation waveform from the internal or external
modulation source.
 When internal source is selected, the modulating waveform is set to square with
50% duty cycle, and the frequency at which the output amplitude “shifts”
between the carrier amplitude and modulation amplitude
( [:SOURce[]][:MOD]:ASKey:AMPLitude ) is determined by the modulation
rate.
 When external source is selected, the signal generator receives the external
modulating signal from the [Mod/Trig/FSK/Sync] connector of the
corresponding channel at the rear panel. For the connector, controlling ASK
modulation externally is different from controlling AM/FM/PM modulations
externally. In ASK modulation, you can set the modulation polarity
( [:SOURce[]][:MOD]:ASKey:POLarity ).
 When [:SOURce[]] or [] is omitted, the system sets the related
parameters of CH1 by default.
Return Format The query returns INT or EXT.
Example :SOUR1:ASK:SOUR EXT /*Set the ASK modulation source of CH1 to external
modulation source*/
:SOUR1:ASK:SOUR? /*Query the ASK modulation source of CH1 and the
query returns EXT*/
Related
Commands
[:SOURce[]][:MOD]:ASKey:AMPLitude
[:SOURce[]][:MOD]:ASKey:POLarity