Programming instructions

Command Reference
Amplitude Modulation Subsystem ([:SOURce])
Chapter 4228
:AM[1]|2:SOURce
Supported PSG-A Series
[:SOURce]:AM[1]|2:SOURce INT[1]|INT2|EXT[1]|EXT2
[:SOURce]:AM[1]|2:SOURce?
This command sets the source to generate the amplitude modulation.
INT This choice selects internal source 1 or 2 to provide an ac-coupled signal.
EXT This choice selects the EXT 1 INPUT or the EXT 2 INPUT connector to
provide an externally applied signal that can be ac- or dc-coupled.
*RST INT
Remarks A 1.0 V
p
input is required for calibrated AM depth settings.
The externally applied, ac-coupled input signal is tested for a voltage
level and a display annunciator will report a high or low condition if
that voltage is >
±
3% of 1 V
p
.
:AM[1]|2:STATe
Supported PSG-A Series
[:SOURce]:AM[1]|2:STATe ON|OFF|1|0
[:SOURce]:AM[1]|2:STATe?
This command enables or disables the amplitude modulation for the selected path.
*RST 0
Key Entry
AM Off On
Remarks The RF carrier is modulated when you have set the signal generator’s
modulation state to ON, see “:MODulation[:STATe]” on page 189 for
more information.
Whenever amplitude modulation is enabled, the AM annunciator is
turned on in the display
The two paths for amplitude modulation can be simultaneously
enabled. Refer to “:AM[1]|2...” on page 220 for more information.
Choices INT[1] INT2 EXT[1] EXT2
Key Entry
Internal 1 Internal 2 Ext1 Ext2
Choices ON OFF 1 0