Analog Modulations
R&S
®
SMA100B
107
User Manual 1178.3834.02 ─ 03
Enabling pulse modulation
1. Select the "Pulse Modulation" tab.
2. Set "State = On".
3. Set "Level > RF ON" to enable signal output.
4.7 How to Generate a Pulse Train Modulated Signal
The following example uses the internal pulse generator.
Setting the frequency and level of the RF signal
1. Press PRESET.
2. In the status bar, set "Frequency = 6 GHz".
3. Set "Level = -25 dBm".
Configuring the pulse generator
1. Select "Modulation" > "Pulse Generator".
2. Select "Pulse Mode = Train".
3. Select "Pulse Train Data".
4. Select an existing file or select "New" to create one.
5. Define the filename.
Select "Edit Pulse Train Data", if the file is empty or to control and change the val-
ues.
6. In the "Edit Pulse Train Data" dialog, enter the pulse on/off times and pulse repeti-
tion values.
For example:
● "On-Time = 500 us", "OFF-Time = 2 ms", "Count = 2"
● "On-Time = 100 us", "OFF-Time = 2.5 ms", "Count = 1"
● "On-Time = 10 us", "OFF-Time = 50 us", "Count = 10"
7. Select "Save".
Close the dialog.
8. In the "Pulse Generator" dialog, select "Pulse Output State = On".
9. Select "Trigger Settings > Trigger Mode = Auto"
10. Observe the graph on the "Pulse Graph" tab.
Enabling pulse modulation
1. Select the "Pulse Modulation" tab.
How to Generate a Pulse Train Modulated Signal
