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Chapter 16 Analysis
134
CellAdvisor JD720C User's Manual
Performing trace math
If you have the traces T1 and T2 on your measurement chart, you can perform trace
arithmetic functions.
Procedure
1
Press the
TRACE
hard key to display the Trace screen menu bar.
2
Tap either
T1
or
T2
trace screen key and then touch the
More (1/2)
screen key.
Trace math screen keys appear in the screen menu bar.
3
Do one of the trace math functions from the following choices:
–
T1+T2:
Adds the traces T1 and T2 and displays the result.
–
T1-T2:
Subtracts the trace T2 from the trace T1 and displays the result.
–
T1*T2:
Multiplies the traces T1 and T2 and displays the result.
–
T1/T2:
Divides the trace T1 by the trace T2 and displays the result.
The Trace Math window appears in the lower half of the screen.
NOTE
Trace math is not available in the DTF and Smith Chart modes.
4
To turn off the trace math function, complete the following steps:
a
Touch the
Trace Math
pane.
b
Tap the
Turn Off Trace Math
screen key.
Loading a saved trace
You can load a saved trace whenever you need. Unlike the trace overlay, the display layout
mode changes to the single display and measurement settings such as measurement mode
and X and Y scales are restored as saved.
Procedure
1
To load a save trace, see
“Using save/load” on page 143.
2
To dismiss the loaded trace data, tap the
No Overlay Exit
screen key.
Your current measurement appears back on the screen.
Setting test limits
You can define test limits for automatic Pass/Fail indication and display a limit line with single
or multiple segments or a limit window. It makes it easy to verify that a measurement exceeds