How to ? Use Fast Acquisitions
6. To select the sampling mode, click the Horiz toolbar button, or select the Horizontal/Acquisition Setup
command from the Horiz/Acq menu to open the Horizontal/Acquisition Setup control window.
7. Open the Acquisition tab and select one of the following Sampling Modes:
Real Time. This sampling mode acquires all points in a waveform record after one trigger event.
RT mode will switch to ET or IT mode, depending on the time-per-division setting and the n umber
of channels acquiring data.
Interpolated. This mode interpolates between the samples the instrument acquires when it cannot
acquire all the real samples it needs to fill up its waveform record.
Equivalent. This mode starts when the time base setting (horizontal scale) is too fast to let the
instrument get enough samples with which to create a waveform record u sing real-time sampling.
Equivale
nt time mode is intended for repetitive signals only.
Use Fast Acquisitions
To operate the instrument in Fast Acquisitions mode, set up the horizontal, vertical, and triggering controls,
and the
n follow the procedure below.
1. Enable Fast Acquisitions mode:
a. In the H oriz/Acq menu, select Horizontal/Acquisition Setup.
b. Open the Acquisition tab.
c. Toggle the Fast Acq button to On, or push the front-panel FastAcq button.
d. Click an option button to optimize the capture of data to suite your measurement.
2. Set
up the Display Appearance:
a. In the Display menu, select Display Setup.
b. Open the Appearance tab.
c. Click one of the Style buttons: Vectors, Dots, or Inten Samp. Vectors is the default.
d. For the display Persistence, click e ither Infinite, Variable, or Off. Off is the default, and erases the
screen each time a new waveform array is displayed. For an explanation of Variable persistence,
click here
(see page 578).
e. If you specified Variable, click Time, and adjust the persistence time (decay rate) with the
multipurpose knob.
3. Set the Display Readout Options:
a. Open the Display control window Objects tab.
b. Click the Display Date/Time button to toggle the date/time display On or Off.
576 DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series
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