Performing Trace Math; Loading A Saved Trace; Setting Test Limits - JDS Uniphase CellAdvisor JD720C Series User Manual

Chapter 16 Analysis

Performing trace math

If you have the traces T1 and T2 on your measurement chart, you can perform trace
arithmetic functions.
Procedure
1
2
3
4

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
2

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
134
Press the TRACE hard key to display the Trace screen menu bar.
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.
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.
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.
To load a save trace, see "Using save/load" on page 143.
To dismiss the loaded trace data, tap the No Overlay Exit screen key.
Your current measurement appears back on the screen.
CellAdvisor JD720C User's Manual