Tektronix TBS2072, Руководство пользователя

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The graphical user interface elements
The graphical user interface elements
The items shown to the right may appear on
the screen. Not all of these items are visible
at any given time. Some readouts move
outside the graticule area when menus are
turned off.
1. The acquisition status shows when an
acquisition is running, stopped, or when
acquisition preview is in effect. The
acquisition modes are:
Run : The oscilloscope is acquiring and displaying waveforms.
Stop : The oscilloscope has stopped acquiring data.
Roll : The oscilloscope is 40 ms per division or slower time base setting, and the signal is shown as a slow scrolling
waveform moving from right to left.
PreVu: The oscilloscope is stopped and you have used the Horizontal or Vertical Scale or Position knobs to
change setting(s). In PreVu mode the oscilloscope is showing a “preview” of what the next acquisition might look
like with the changed position or scale settings, based on the last acquired waveform, and assuming that the same
signal is acquired with the new settings.
In other words, in PreVu mode the oscilloscope is reinterpreting the static waveform record of the last acquisition
in memory, resulting in a displayed waveform that may not be accurate.
106 TBS2000 Series User Manual