Selecting Traces - Tektronix 11801C User Manual

Trace Definition and Management

Selecting Traces

When you define a new trace, it is highlighted (bright intensity) on the dis
play. This indicates that it is the selected trace. When multiple traces are
displayed, there is always one selected trace. The graticule labels and axes
match the color of the selected trace.
The selectors, knobs, and buttons operate on the selected trace. The grati
cule axis labels show the vertical and horizontal size and position of the
selected trace. Selectors that show trace status, such as the Vertical Desc
and Horizontal Desc selectors in the Waveform major menu, show the
status of the selected trace. When you use the and icons to assign the
knobs to horizontal or vertical size and position, the knobs affect the se
lected trace.
When you have more than one trace on the display, you can select and
highlight any trace. There are three methods that you can use to select a
trace; touch the trace on the display or on its displayed label, use the All
Trace Status major menu, or use the sampling head SELECT CHANNEL
button.
Selecting Traces by Touch
The fastest way to select a trace is to touch it on the display or on its dis
played label. When you touch the graticule area of the display, a box is
displayed that shows the boundaries of your touch. If a single trace passes
through the boxed area when you remove your finger, that trace will become
the selected trace. The touch box disappears when you withdraw your finger
and select a trace.
You can drag your finger across the display to change the position of the
box before you remove your finger to select the trace.
If several traces pass through the area indicated by the touch box, one
becomes the selected trace when you remove your finger. Touching the
same area repeatedly will select different traces. You can select traces by
touching the same spot on the display repeatedly, until the trace you want is
selected.
Selecting Traces Using the Trace Status Menu
You can see the status of all displayed traces at once by using the Trace
Status menu. You are shown the trace number, the first part of the trace
expression, the time base, and the vertical and horizontal size per division.
To view this information, touch the More... selector in the Waveform major
menu. The entire Waveform major menu is replaced by the Trace Status
major menu, though the light beside the WAVEFORM button remains
lighted.
This menu shows one selector for each displayed trace. You can select any
trace by touching its selector. The selector for the selected trace is always
highlighted. The Return to Single Trace selector restores the regular Wave
form major menu. See Figure 3 103.
3 210
Reference