GW Instek AFG-2225 User Manual - Manual (Page 239)

REMOTE INTERFACE
239
Parameter <frequency> 2 mHz~ 20 kHz
Example SOUR1:SUM:INT:FREQ MAX
Sets the frequency to the maximum value.
Query Syntax SOURce[1|2]:SUM:INTernal:FREQuency?
Return Parameter <NR3> Returns the frequency in
Hz.
Example SOUR1:SUM:INT:FREQ? MAX
+2.0000E+04
Returns the modulating frequency (20kHz).
SOURce[1|2]:SUM:AMPL
Source Specific
Command
Description Sets or queries the amplitude of the modulating
waveform from the carrier waveform. The default
phase amplitude is 50%.
Note If an external SUM source is selected, the
amplitude of the modulated waveform is
controlled using the ±5V MOD INPUT terminal on
the rear panel. A positive signal (>0~+5V) will
increase the AMPLitude (up to the set amplitude),
whilst a negative voltage will reduce the
amplitude.
Syntax SOURce[1|2]:SUM:AMPL{< percent>|minimum
|maximum}
Parameter <percent> 0%~100%
Example SOUR1:SUM:AMPLitude +3.0000E+01
Sets the amplitude to 30%.
Query Syntax SOURce[1|2]:SUM:AMPLitude?
Return Parameter <NR3> Returns the amplitude .
Example SOUR1:SUM:AMPLitude?
+3.0000E+01
The current amplitude is 30%.