Tektronix TLS 216 User Manual page 79

Measurements
Cursor Measurements
2–28
Cursors are fast and easy-to-understand measurements. You take measurements
by moving the cursors and reading their numeric values from the on screen
readouts, which update as you adjust their positions.
Cursors appear in pairs. One part of the pair is active and the other inactive. You
move the active cursor (the solid line) using the general purpose knob. The
SELECT button lets you select (toggle) which cursor bar is active or inactive.
The inactive cursor is a dashed line on the display.
To display the cursor menu, press the CURSOR button. There are three kinds of
cursors available in that menu:
Horizontal bar cursors measure vertical parameters (typically volts).
Vertical bar cursors measure horizontal parameters (typically time or
frequency). They also measure the binary value at the selected cursor for the
selected group of waveforms. (See Measuring Waveforms with Cursors on
page 3–81 for more information on binary cursor measurements.)
Paired cursors measure both vertical parameters (typically volts) and
horizontal parameters (typically time or frequency).
There are also two modes for cursor operation available in the cursor menu:
independent and tracking. (See Figure 2-9.)
Independent Mode
Only Selected Cursor Moves
Tracking Mode
Both Cursors Move
Figure 2-9: Cursor Modes
in Tandem
TLS 216 User Manual