Acquiring and Displaying Waveforms
TDS 684A, TDS 744A, & TDS 784A User Manual 3–23
To determine the acquisition sampling rate, the acquisition state (running or
stopped), and the acquisition mode, check the Acquisition readout at the top of
the display. (See Figure 3–14.) The state “Run:” shows the sample rate and
acquisition mode. The state “Stop:”shows the number of acquisitions acquired
since the last stop or major change.
Acquisition Readout
Figure 3–14: Acquisition Menu and Readout
The oscilloscope provides several modes (see The Acquisition Modes on
page 3–20) for acquiring and converting analog data into digital form. To choose
how the oscilloscope will create points in the waveform record:
1. Press SHIFT ACQUIRE MENU Mode (main). (See Figure 3–14.)
2. TDS 684A: Press Sample, Envelope, or Average (side) or ...
TDS 700A Models: Press Sample, Peak Detect, Hi Res, Envelope, or
Average (side). (InstaVu mode must be off to use Hi Res, Envelope, or
Average modes.)
3. If you selected Envelope or Average, enter the number of waveform records
to be enveloped or averaged using the keypad or the general purpose knob.
Checking the
Acquisition Readout
Selecting an
Acquisition Mode