Using Features for Advanced Applications
3–170 TDS 684A, TDS 744A, & TDS 784A User Manual
If you wish to see the zoom factor (2X, 5X, etc.) you need to turn Zoom on:
press ZOOM On (side). The vertical and horizontal zoom factors appear on
screen.
Whether Zoom is on or off, you can press Reset Zoom Factors (side) to return
the zoomed integral waveform to no magnification.