Appendix B: Automatic Measurements Reference
CSA8000B & TDS8000B User Manual
B- 55
Non-Return-to-Zero (NRZ) Measurements - Area
Table B--9 topic describes each NRZ measurement in the area category. See
Table B--7 on page B--37 for amplitude category measurements.; see Table B--8
on page B--50 for timing category measurements.
Table B- 9: NRZ Measurements - Area
Name
Definition
NRZ Area
The area under the curve for the NRZ waveform within the measurement region. Area
measured above ground is positive; area measured below ground is negative.
over the measurement region.
If enabled, measurement gates constrain the measurement region to the area between the Start
Gate (G1) and Stop Gate (G2). See
To Localize a Measurement
on page 3--83.
When this measurement is turned on, it will automatically set the measurement system to use a
waveform database if available. See
Use a Waveform Database
on page B--70.
For best results with this measurement:
H
Perform a Dark Level compensation before taking this measurement if the source of the
measured waveform is an optical channel. See
To Perform Dark-Level and User
Wavelength Gain Compensations
on page 3--98.
H
Optimize the vertical resolution before taking this measurement. See
To Optimize the
Vertical Resolution
on page B--69.
NRZ Area
=
ጺ
waveform
(
t
)
dt
,
NRZ Cycle Area
The area under the curve for the first NRZ bit time within the measurement region. Area
measured above ground is positive; area measured below ground is negative.
over the first NRZ bit within the measurement region.
When this measurement is turned on, it will automatically set the measurement system to use a
waveform database if available.
For best results with this measurement:
H
Perform a Dark Level compensation before taking this measurement if the source of the
measured waveform is an optical channel. See
To Perform Dark-Level and User
Wavelength Gain Compensations
on page 3--98.
H
Optimize the vertical resolution before taking this measurement. See
To Optimize the
Vertical Resolution
on page B--69.
NRZ Area
=
ጺ
waveform
(
t
)
dt
,
Содержание CSA8000B Series
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