Instructions

RIGOL Chapter 2 Command System
2-106 DG2000 Programming Guide
Example
:SOUR1:FSK:INT:RATE 150 /*Sets the FSK modulation rate of CH1 to 150 Hz.*/
:SOUR1:FSK:INT:RATE? /*Queries the FSK modulation rate of CH1 and the query returns
1.500000E+02.*/
[:SOURce[<n>]][:MOD]:FSKey:POLarity
Syntax
[:SOURce[<n>]][:MOD]:FSKey:POLarity {POSitive|NEGative}
[:SOURce[<n>]][:MOD]:FSKey:POLarity?
Description
Sets the FSK modulation polarity of the specified channel to Positive (POSitive) or Negative (NEGative).
Queries the FSK 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]:FSKey:SOURce), set the polarity to "Positive",
and the generator will output the carrier frequency when the modulating waveform amplitude is a logic
low level. It will output the hop frequency (
[:SOURce[<n>]][:MOD]:FSKey[:FREQuency]) 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]:FSKey:SOURce), set the polarity to "Positive",
and the generator will output the carrier frequency when the external input signal is a logic low level.
It will output the hop frequency (
[:SOURce[<n>]][:MOD]:FSKey[:FREQuency]) 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:FSK:POL POS /*Sets the FSK modulation polarity of CH1 to Positive.*/
:SOUR1:FSK:POL? /*Queries the FSK modulation polarity of CH1 and the query returns POS.*/
[:SOURce[<n>]][:MOD]:FSKey:SOURce
Syntax
[:SOURce[<n>]][:MOD]:FSKey:SOURce {INTernal|EXTernal}
[:SOURce[<n>]][:MOD]:FSKey:SOURce?
Description
Sets the FSK modulation source of the specified channel to internal (INTernal) or external (EXTernal)
modulation source.
Queries the FSK modulation source of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{INTernal|EXTernal}
Discrete
INTernal|EXTernal
INTernal