RIGOL DG1000Z Series - Manual (Page 155)

Chapter 2 Command System RIGOL
DG1000Z Programming Guide 2-143
[:SOURce[]][:MOD]:PSKey:SOURce
Syntax [:SOURce[]][:MOD]:PSKey:SOURce {INTernal|EXTernal}
[:SOURce[]][:MOD]:PSKey:SOURce?
Description Set the PSK modulation source of the specified channel to internal (INTernal) or
external (EXTernal) modulation source.
Query the PSK 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 phase “shifts” between
carrier phase and modulation phase ( [:SOURce[]][:MOD]:PSKey:PHASe ) is
determined by the modulation rate
( [:SOURce[]][:MOD]:PSKey:INTernal:RATE ).
 When external source is selected, the generator receives the external modulating
signal from the corresponding [Mod/Trig/FSK/Sync] connector at the rear
panel. For the connector, controlling PSK modulation externally is different from
controlling AM/FM/PM modulations externally. In PSK modulation, you can set the
modulation polarity ( [:SOURce[]][:MOD]:PSKey: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:PSK:SOUR EXT /*Set the PSK modulation source of CH1 to external
modulation source*/
:SOUR1:PSK:SOUR? /*Query the PSK modulation source of CH1 and the query
returns EXT*/
Related
Commands
[:SOURce[]][:MOD]:PSKey:INTernal:RATE
[:SOURce[]][:MOD]:PSKey:PHASe
[:SOURce[]][:MOD]:PSKey:POLarity