Tektronix CSA8000B, TDS8000B B-44 CSA8000B & TDS8000B User Manual

Appendix B: Automatic Measurements Reference
B-44 CSA8000B & TDS8000B User Manual
Table B- 7: NRZ Measurements - Amplitude (cont.)
Name Definition
NRZ Mid The middle level between the Max and Min vertical values of the selected waveform within the
measurement region.
Where Max and Min are the maximum and minimum measurements.
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:
HPerform 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.
HOptimize the vertical resolution before taking this measurement. See How to Optimize the
Vertical Resolution on page B--70.
NRZ Mid =(Max +Min)
2
NRZ Min The minimum vertical value of the selected waveform the measurement region.
If enabled, measurement gates constrain the measurement region to the area between the Start
Gate (G1) and Stop Gate (G2).
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:
HPerform 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.
HOptimize the vertical resolution before taking this measurement. See To Optimize the
Vertical Resolution on page B--69.