User Manual - Page 68

For SDS1202X-E.

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SDS1000X-E User Manual
43
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Memory Depth
Memory depth refers to the number of waveform points that the oscilloscope can store in a
single trigger sample and it reflects the storage ability of the sample memory. The
oscilloscope provides up to 14 Mpts memory depth.
Press the
Acquire
button on the front panel; press the
Mem Depth
softkey and then turn
the
Universal Knob
to select the desired value and push down the knob to confirm. Press
the
Mem Depth
softkey continually can also select the desired value.
The actual memory depth is displayed in the information area at the upper- right corner of
the screen. Memory depth that available: 14K, 140K, 1.4M, 14M.
Since the oscilloscope has two acquisition memories, when only one channel is on, the
maximal memory depth is up to 14 Mpts.
The relation of memory depth, sample rate and waveform length fulfills the equation
below:
Memory depth = sample rate (Sa/s) × waveform length (s/div × div)
Sampling Mode
The oscilloscope only supports real-time sample. In this mode, the oscilloscope samples
and displays waveform within a trigger event. The maximum real-time sample rate is
1GSa/s.
Press the
RUN/STOP
button
to stop the sample, the oscilloscope will hold the last display.
At this point, you can still use the vertical control and horizontal control to pan and zoom
the waveform.
Interpolation Method
Under real-time sampling, the oscilloscope acquires the discrete sample values of the
waveform being displayed. In general, a waveform of dots display type is very difficult to
observe. In order to increase the visibility of the signal, the digital oscilloscope usually
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