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TDS Family Oscilloscope Programmer Manual
2–41
Waveform commands also work with extended-acquisition-length mode. This
mode lets the oscilloscope acquire extended acquisition lengths of 2M, 4M, and
8M while maintaining waveform record lengths limited to 500K.
In other words, the acquisition data for a channel may be bigger than a waveform
you view. Then, after the data is acquired, you can move to and display any
portion of the data.
Figure 2–4 below shows conceptually how this mode lets you select a subsection
of the larger acquisition data. You can select the starting and ending positions in
the acquisition data and the waveform record.
NOTE. To function properly, extended acquisition mode forces some oscilloscope
modes and settings to new values. Also, measurements, gating, and cursors are
restricted to the current waveform record.
Extended-acquisition-length data
Waveform
Record
Display
Move to any portion of the acquisition data
Figure 2–4: Displaying Extended Acquisition Length Data
Extended-Acquisition-
Length Mode
(TDS 500C & 700C,
Option 2M)