Filter
Top Products
Measurement System
TDS 620A, 640A & 644A User Manual
3Ć93
To use snapshot, obtain a stable display of the waveform to be measured.
Pressing AUTOSET may help.
1. Press MEASURE ➞ SNAPSHOT (main).
2. Press either SNAPSHOT (main) or AGAIN (side) to take another snapĆ
shot.
NOTE
The snapshot display tells you the channel that the snapshot is
being made on.
3. Push Remove Measrmnt.
Considerations When Taking Snapshots
Be aware of the following items when using snapshot:
H Be sure to display the waveform properly before taking a snapshot.
Snapshot does not warn you if a waveform is improperly scaled
(clipped, low signal amplitude, low resolution, etc.).
H To vary the source for taking a snapshot, simply select another channel,
math, or ref memory waveform and then execute snapshot again.
H A snapshot is taken on a single waveform acquisition (or acquisition
sequence). The measurements in the snapshot display are not continuĆ
ously updated.
H Be careful when taking automatic measurements on noisy signals. You
might measure the frequency of the noise and not the desired waveĆ
form.
H Note that pushing any button in the main menu (except for Snapshot) or
any front panel button that displays a new menu removes the snapshot
from display.
H Use HighĆLow Setup (page 3Ć89), Reference Levels (page 3Ć89), and
Gated Measurements (page 3Ć88) with snapshot exactly as you would
when you display individual measurements from the Select Measrmnt
menu.
See Appendix B: Algorithms, on page AĆ7.
See Measurements, on page 2Ć26.
See Tutorial Example 3: Automated Measurements, on page 1Ć18.
For More
Information