Rigol DG811 - System Utility Function; To Restore Preset

RIGOL Chapter 2 Command System
2-114 DG800 Programming Guide
Example
:SOUR1:PSK:PHAS 90 /*Sets the PSK modulation phase of CH1 to 90°.*/
:SOUR1:PSK:PHAS? /*Queries the PSK modulation phase of CH1 and the query returns
9.000000E+01.*/
[:SOURce[<n>]][:MOD]:PSKey:POLarity
Syntax
[:SOURce[<n>]][:MOD]:PSKey:POLarity {POSitive|NEGative}
[:SOURce[<n>]][:MOD]:PSKey:POLarity?
Description
Sets the PSK modulation polarity of the specified channel to Positive (POSitive) or Negative (NEGative).
Queries the PSK modulation polarity of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{POSitive|NEGative}
Discrete
POSitive|NEGative
POSitive
Remarks
 When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.
 In the internal modulation (
[:SOURce[<n>]][:MOD]:PSKey:SOURce), set the polarity to "Positive",
and the generator will output the carrier phase when the modulating waveform amplitude is a logic low
level. It will output the modulating phase (
[:SOURce[<n>]][:MOD]:PSKey:PHASe) when the
modulating waveform amplitude is a logic high level. The situation is the opposite when the polarity is
set to "Negative".
 In the external modulation (
[:SOURce[<n>]][:MOD]:PSKey:SOURce), set the polarity to "Positive",
and the generator will output the carrier phase when the external input signal is a logic low level. It will
output the modulating phase (
[:SOURce[<n>]][:MOD]:PSKey:PHASe) when the external input signal
is a logic high level. The situation is the opposite when the polarity is set to "Negative".
Return Format
The query returns POS or NEG.
Example
:SOUR1:PSK:POL POS /*Sets the PSK modulation polarity of CH1 to Positive.*/
:SOUR1:PSK:POL? /*Queries the PSK modulation polarity of CH1 and the query returns POS.*/
[:SOURce[<n>]][:MOD]:PSKey:SOURce
Syntax
[:SOURce[<n>]][:MOD]:PSKey:SOURce {INTernal|EXTernal}
[:SOURce[<n>]][:MOD]:PSKey:SOURce?
Description
Sets the PSK modulation source of the specified channel to internal (INTernal) or external (EXTernal)
modulation source.
Queries the PSK modulation source of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{INTernal|EXTernal}
Discrete
INTernal|EXTernal
INTernal