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Acquiring Waveforms

3-36

CSA7000 Series, TDS7000 Series, & TDS6000 S eries Instruments User Manual

Overview Control elements and resourcesTo set acquisition modes (Cont.)

To select

real-time or

equivalent-

time sampling

To select real-time sampling, interpolated real-time sampling,

or equivalent-t ime sampl ing:

6. Touch the Horiz button. Select the Acquisition tab from

the Horiz/Acq control window,

Or select Horizontal/Acquisition Setup from the

Horiz/Acq menu to display the Acquisition Mode control

window. Select the Acquisition tab.

7. Select the sampling mode:

H Equivalent Time uses both the real-time and

equivalent-time sampling as appropriate (see Table

3--2 on page 3--44).

H Real Time Only limits the instrument to real-time

sampling. Real Time Only prevents the very fast

horizontal scale settings from being selected.

H Interpolated Real Time limits the instrument to

real-tim e sampling. If the instrument cannot

accurately get enough samples for a complete

waveform, it will interpolate.

Note. The instrument will use the interpolation method

selected in the display menu to fill in the missing record

points — either linear or sin(x)/x interpolation. The

default method is sine(x)/x. See Interpolation on

page 3--45 for a discussion of int erpolation.

Tektronix TDS7054 User Manual

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