Using The Roll Mode - Rohde & Schwarz RTE User Manual

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R&S RTE
If "Envelope" or "Average" is selected in the "Acquisition" tab, one acquisition
means a cycle containing as many acquired waveforms as required to satisfy the
reset conditions.
Prerequisites:
●
Probes are connected.
●
Vertical and horizontal settings are adjusted.
●
Triggering is set.
●
Channels to be acquired are turned on.
To start and stop continuous acquisition
1. Check if the trigger mode is set to "Normal". The trigger mode is shown in the trig-
ger label in the upper right edge of the screen.
If not, press the trigger [MODE] key on the front panel to toggle the setting.
2. Press the [RUN CONT] key to start acquisition.
The acquisition starts if a trigger occurs.
3. To stop , press the [RUN CONT] key again.
The acquisition stops immediately.
To acquire a limited number of acquisitions
1. Press the TRIGGER key and tap the "Control" tab.
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.

5.10.6 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 fulfilled: see
on page 180.
2. Press the [HORIZONTAL] key.
3. In the "Roll mode" section of the "Setup" 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.
User Manual 1326.1032.02 ─ 20
Acquisition and waveform setup
Setting up the waveform
"Roll mode"
236