RIGOL DG1000Z Series - Manual (Page 145)

Chapter 2 Command System RIGOL
DG1000Z Programming Guide 2-133
[:SOURce[<n>]][:MOD]:FSKey:POLarity
Syntax [:SOURce[<n>]][:MOD]:FSKey:POLarity {POSitive|NEGative}
[:SOURce[<n>]][:MOD]:FSKey:POLarity?
Description Set the FSK modulation polarity of the specified channel to positive (POSitive) or
negative (NEGative).
Query the FSK modulation polarity of the specified channel.
Parameter Name Type Range Default
[<n>] Discrete 1|2 1
{POSitive|NEGative} Discrete POSitive|NEGative POSitive
Explanation  When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related
parameters of CH1 by default.
 In internal modulation ( [:SOURce[<n>]][:MOD]:FSKey:SOURce ), the signal
generator would output the carrier frequency when the modulating waveform is
logic low level and output the hop frequency
( [:SOURce[<n>]][:MOD]:FSKey[:FREQuency] ) when the modulating waveform
is logic high level if the polarity is set to positive. The situation is the opposite
when the polarity is set to negative.
 In external modulation ( [:SOURce[<n>]][:MOD]:FSKey:SOURce ), the signal
generator would output the carrier frequency when the external input signal is
logic low level and output the hop frequency when the external input signal is
logic high level if the polarity is set to positive. 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 /*Set the FSK modulation polarity of CH1 to positive*/
:SOUR1:FSK:POL? /*Query the FSK modulation polarity of CH1 and the query
returns POS*/
Related
Commands
[:SOURce[<n>]][:MOD]:FSKey[:FREQuency]
[:SOURce[<n>]][:MOD]:FSKey:SOURce