JDS Uniphase CellAdvisor JD780A Series, Руководство пользователя

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JD780A Series Analyzers
Using Power Meter
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Introduction
The Power Meter of the JD780A series uses power measurement based on spectrum measurement
results to provide an accurate power measurement result unlike a general spectrum analyzer, of which
power accuracy may be degraded if the span is set too wide.
The power meter also provides Pass/Fail indication with user-defined lower and upper limits.
The Power Meter function provides following measurements:
 Internal RF Power Measurement
 External RF Power Measurement
 Optical Power Measurement
Display overview
Figure 289 provides descriptions for each segment of the measurement screen.
Figure 289 Power measurement screen
Performing internal RF power measurements
The internal power measurement of the JD780A series collects powers from the raw data of spectrum
analyzer in the optimal span and integrates the powers up to the specified user span, which results in
an accurate power measurement, independent of the span setting.