Taking Cursor Measurements
3–120
TDS 420A, TDS 430A, TDS 460A & TDS 510A User Manual
To select the cursor mode and adjust the cursors in either mode, do the
following steps:
1. Press CURSOR
➞ Mode (main) ➞ Independent or Tracking (side):
Independent makes each cursor positionable without regard to the position of the
other cursor.
Tracking makes both cursors positionable in tandem; that is, both cursors move
in unison and maintain a fixed horizontal or vertical distance between each other.
2. Adjust the cursors according to the mode you have selected:
To adjust either cursor in independent mode, use the general purpose knob to
move the selected (active) cursor. A solid line indicates the adjustable cursor,
and a dashed line indicates the fixed cursor. Press SELECT to toggle
between cursors.
To adjust both cursors in tracking mode, use the general purpose knob.
To adjust the distance between cursors in tracking mode, press SELECT to
temporarily suspend cursor tracking. Then use the general purpose knob to
adjust the distance of the solid cursor relative to the dashed cursor. Press
SELECT again to resume tracking.
You can choose to display vertical bar cursor results in the base horizontal units
of the waveform or in 1/base horizontal units of the waveform. For internally
clocked waveforms the units are time or frequency; for externally clocked
waveforms (TDS 400A only) the units are clocks or 1/clocks. If you have
Option 05 Video, you can also display the results in terms of video line number
(see Figure 3–66). To choose vertical bar cursor units, do the following step:
NOTE. If Custom video mode is selected, you also need to set the Scan Period in
the Custom Video menu.
On a TDS 400A press CURSOR
➞ Horiz Units (main) ➞ Base or 1/Base, or
with Option 5, video line number
(side).
On a TDS 510A press CURSOR
➞ Time Units (main) ➞ seconds or1/seconds,
or with Option 5, video line number
(side).
Set Mode and Adjust the
Cursors
Select Horizontal Units
To Next Page
Loading...
