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2-15
Making Measurements
Measurements
Phase and
Frequency Error
Measurement
Phase error and frequency error are measures of the modulation and noise
performance of the radio’s transmitter path.
Method
Select the PHASE FRQ field on the cell control screen to access the phase and
frequency measurements.
NOTE The test is run automatically when the screen is selected.
The measurement fields in this screen are RMS Phase Error, Peak Phase Error and
Frequency Error (1), see Figure 2-7 on page 2-15.
The Agilent 8922M/S input sensitivity (2) can be varied, if necessary, to ensure that
the input signal level matches the Agilent 8922M/S RF Analyzer. Valid
measurements are only made when the signal is within 3 dB of the RF Analyzer
setting.
The Agilent 8922M has the option of using multi-burst measurements (4). This
gives the ability to make several phase and frequency measurements using more
than one burst. For more information refer to Chapter 4, Screens, Phase and
Frequency Error screen.
Figure 2-7 Phase and Frequency Error Measurements
Two additional screens in the phase and frequency measurement section can be
revealed if you select (3).
1
2
4
3