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S:\agilent\e8285\REFGUIDE\MANUAL\fields.chp
Chapter 4, Description of Fields
Fields
AM Depth
This field displays the percent depth of modulation of the AM signal. The field is
only visible when the
AF ANL In field is set to AM MOD or AM DEMOD.
Screens Where Field is Present
AF ANALYZER
RF ANALYZER
RF GENERATOR
Ampl Error
This field is displayed when Ampl Error is selected from the list of choices
available when the unnamed field displaying one of the following choices is
displayed:
• frequency error
• amplitude error
• time offset measurement
Amplitude error is an indication of the quality of the amplitude component in the
reverse link OQPSK (offset quadrature phase shift keyed) signal. It is the
expressed as a percent difference between the magnitude of the ideal amplitude
vector and the magnitude of the amplitude vector transmitted from the mobile
station.
GPIB Example
“DISP CTXT;MEASure:CDManalyzer:AMPL:ERRor?“
queries the CDMA amplitude error measurement result.
Operating Considerations
These measurements, along with rho, phase error, and carrier feedthrough are
made by DSP analysis techniques. The
Meas Cntl field controls these
measurements.
See Also
Freq Error (Analog) field description, on page 266
Meas Cntl field description, on page 295
Time Offset field description, on page 427
Screens Where Field is Present
CDMA CELLULAR MOBILE TRANSMITTER TEST