User manual

Acquisition and Setup
R&S
®
RTO
26User Manual 1316.0827.02 ─ 06
To acquire a limited number of acquisitions
1. On the "Trigger" menu, tap "Trigger Events Setup".
2. In the "Control" area, select the "Normal" trigger mode.
3. Enter the number of acquisitions in the "Average count" field.
4.
Press the RUN N×SINGLE key on the front panel.
You can stop the running acquisition before it is finished by pressing the key again.
2.2.5 Using the Roll Mode
The roll mode can be used if the acquisition process is slow - that is if the time scale is
large. In roll mode, the instrument shows the waveform immediately and saves waiting
for the waveform display. The roll mode can be activated by the instrument if several
conditions are fulfilled.
To set the roll mode manually
1.
Make sure that all requirements for the roll mode are fullfilled: see 
"Mode" on page 29.
2. Press the HORIZONTAL key.
3. In the "Roll mode" section of the "Time Base" tab, set "Mode" to "Auto".
4. In the "Min roll mode gain" field, enter the acquisition time at which the instrument
starts the roll mode.
2.2.6 Using Ultra Segmentation
Ultra Segmentation reduces the dead time between two waveform acquisition cycles.
The settings are described in chapter 2.3.1.4, "Ultra Segmentation", on page 35.
1. On the "Horizontal" menu, tap "Ultra Segmentation".
2. Tap "Enable" to activate the Ultra Segmentation mode.
3. If you want to sample the maximum number of acquisitions in a series, select "Acquire
maximum".
If you want to capture a defined number of acquisitions, disable "Acquire maxi-
mum" and enter the "Required" number of acquisitions.
4. Set the "Replay time", the display time of each acquisition.
2.2.7 Using Digital Filters
Before using digital filters, you determine if you want to filter input channels only or if the
trigger signal will be filtered too. The filter settings depend on this decision.
Setting Up the Waveform