GW Instek AFG-2225 User Manual - Manual (Page 223)

REMOTE INTERFACE
223
Frequency Modulation (FM) Commands
FM Overview
The following is an overview of the steps required to generate an
FM waveform.
Enable FM
Modulation
Configure Carrier
Select
Modulation
Source
Select shape
Set Modulating
Frequency
Set Peak
Frequency
Deviation
1. Turn on FM modulation using the
SOURce[1|2]: FM:STAT ON command.
2. Use the APPLy command to select a carrier
waveform. Alternatively, the FUNC, FREQ,
AMPl, and DCOffs commands can be used to
create a carrier waveform with a designated
frequency, amplitude and offset.
3. Select an internal or external modulation source
using the SOURce[1|2]:FM:SOUR command.
4. Use the SOURce[1|2]:FM:INT:FUNC command
to select a sine, square, upramp, dnramp or
triangle modulating waveshape. For internal
sources only.
5. Set the modulating frequency using the
SOURce[1|2]: FM:INT:FREQ command. For
internal sources only.
6. Use the SOURce[1|2]:FM:DEV command to set
the frequency deviation.