Tektronix TDS5000B Series, Онлайн руководство пользователя, Страница: 109 / 420

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Incompatible Acquisition Features
The following table shows which acquisition features and modes are incompatible with other
features or modes:
Incompatible with Control/Feature Explanation
Reference Waveforms
(Ref1-Ref4) Voltage Offset Offset is an acquisition
control, not a display
control
Single shot acquisition Average Acquisitions continue until
the specified number of
waveforms have been
acquired and averaged
Single shot acquisition Envelope Acquisitions continue until
the specified number of
waveforms have been
acquired for the enveloped
waveform
Measurements Roll Measurements are not
available until you stop
acquisitions
Envelope, Average, or
WfmDb acquisition modes Roll Using these acquisition
modes will turn Roll mode
off
Sampling Modes
To Use
To enable a sampling mode, click the Sampling Mode button.
There are three sampling modes: Real Time Only, Interpolated
Read Time, and Equivalent Time.
In Real Time Only sampling, the instrument acquires all the points
in a waveform record after one trigger event.
In Interpolated Real Time sampling, the instrument interpolates
between the samples it acquires when it cannot acquire all the real
samples it needs to fill up its waveform record. The instrument can
interpolate either as part of an acquisition or as part of the
zoom/display behavior.
Equivalent time sampling 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 using real-time
sampling.
Use the Horiz/Acq menu
Sampling Modes
command to directly select a sampling mode.