RIGOL DG1000Z Series - Manual (Page 135)

Chapter 2 Command System RIGOL
DG1000Z Programming Guide 2-123
[:SOURce[]][:MOD]:ASKey:POLarity
Syntax [:SOURce[]][:MOD]:ASKey:POLarity {POSitive|NEGative}
[:SOURce[]][:MOD]:ASKey:POLarity?
Description Set the ASK modulation polarity of the specified channel to positive (POSitive) or
negative (NEGative).
Query the ASK modulation polarity of the specified channel.
Parameter Name Type Range Default
[] Discrete 1|2 1
{POSitive|NEGative} Discrete POSitive|NEGative POSitive
Explanation  When [:SOURce[]] or [] is omitted, the system sets the related
parameters of CH1 by default.
 In internal modulation ( [:SOURce[]][:MOD]:ASKey:SOURce ), the signal
generator would output the lower of the carrier amplitude and modulation
amplitude ( [:SOURce[]][:MOD]:ASKey:AMPLitude ) when the modulating
waveform is logic low level and output the greater 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[]][:MOD]:ASKey:SOURce ), the signal
generator would output the lower of the carrier amplitude and modulation
amplitude ( [:SOURce[]][:MOD]:ASKey:AMPLitude ) when the external input
signal is logic low level and output the greater 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:ASK:POL POS /*Set the ASK modulation polarity of CH1 to positive*/
:SOUR1:ASK:POL? /*Query the ASK modulation polarity of CH1 and the query
returns POS*/
Related
Commands
[:SOURce[]][:MOD]:ASKey:AMPLitude
[:SOURce[]][:MOD]:ASKey:SOURce