Viavi T-BERD/MTS- 2000V2 User Manual page 30

Table of Contents

Chapter 1 Optical Spectrum Measurement

Result display

Adjusting the

y axis

Displaying the

difference of two

curves

T-BERD/MTS-2000V2, 4000V2, 5800V2 • OCC-4056C • User Manual 2019.04

To compare curves the y axis of the curves can be adjusted by the

Y Reset/Y Shift/Y Exact softkey.

 Press the softkex to select one of he following settings:

–

Y Reset: All traces are on the the same level at the intersection

with the active cursor.

–

Y Shift: Each trace is shifted 5 dB from the other.

–

Y Exact: The traces displayed are on the same position

according to their injection level.

A difference can be build from two curves.

1. Display the two curves.

2. Press the Advanced softkey, select Overlay and then

2 Curves Diff.

The difference curve is displayed as a new trace in the diagramm.

Fig. 15

Difference of two curves (1)

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T-berd/mts-4000v2 T-berd/mts-5800v2 Occ-4056c