Configuring the RF Signal
R&S
®
SMW200A
528User Manual 1175.6632.02 ─ 30
6. In the "Frequency Range" tab, set "Start Freq > 200 MHz" and "Stop Freq > 600
MHz".
(Alternatively you can set "Center Freq > 400 MHz" and "Span > 400 MHz".)
7. Set the step width "Step Lin > 10 MHz" and "Dwell Time > 10.0 ms".
8. In the "Advanced" tab, trigger the sweep "Auto".
9. In the "General" tab, select "State > On".
Example: Fast changing frequency and level settings in list mode
The following example shows you how to generate an amplitude modulated RF signal
based on list mode data.
General workflow
Since any change of the hardware settings or list entries can affect the RF signal char-
acteristics directly, we recommend that you proceed as follows:
1. Configure the modulation settings.
Activate the RF signal.
2. Wait until the hardware settings have settled.
3. Create a list file.
4. Configure the list mode.
5. Execute "Learn List Mode Data" if necessary.
6. Activate list mode.
To configure amplitude modulation and switch RF on
1. Press [PRESET] to start from an initial state.
2. Select "RF" > "Analog Modulation" > "Amplitude Modulation > On".
3. Select "RF > On" to activate RF signal generation.
To create list mode data
1. Select "RF" > "Sweep/List" > "List Mode".
2. In the "List Mode Data" tab, select "List Mode Data > New"
3. Enter the filename ListMode_Test for the data list and confirm with "Ok".
The instrument creates a file and stores it in the /var/user/ directory.
4. Select "Edit List Mode Data".
5. Enter the first values "Frequency > 2", "Power > 0" and "Dwell > 2".
6. Enter further frequency, power and dwell time values in the same way.
7. Select "Save" and close the dialog.
Varying the RF Signal in List or Sweep Mode
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