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N:\mkt\MANUALS\HP8924C\APPMOD\BOOK\chapters\amtxtst.fb
Chapter 4, CDMA Transmitter Tests
Measuring Waveform Quality
5. Measure Rho.
HP-IB Syntax
"DISP CTXT;MEAS:CDM:RHO?" !queries the Rho measurement results
"DISP CTXT;MEAS:CDM:FREQ:ERR?" !queries the Frequency Error measurement results
"DISP CTXT;MEAS:CDM:AMPL:ERR?" !queries the Amplitude Error measurement results
"DISP CTXT;MEAS:CDM:TIME:OFFS?" !queries the Time Offset measurement results
"DISP CTXT;MEAS:CDM:PHAS:ERR?" !queries the Phase Error measurement results
"DISP CTXT;MEAS:CDM:CAR:FEED?" !queries the Carrier Feedthrough measurement results
Hz
Manual Operation:
Read the Traffic Rho measurement, Frequency
Error, and Phase Error on the front panel display.
CDMA CELLULAR MOBILE TRANSMITTER TEST
Traffic Rho
Freq Error
Phs Error
By selecting the Freq Error field shown in the figure above, Amplitude Error and Time Offset will be
displayed in the list of Choices, in addition to Frequency Error. Any one of these measurements can be
displayed in the Freq Error field by positioning the cursor next to it and pressing the knob.
By selecting the Phs Error field shown in the figure above, Carrier (Feedthrough) will be displayed in the list
of Choices in addition to Phs Error. Either one of these measurements can be displayed in the Phs Error field
by positioning the cursor next to it and pressing the knob.
0.990
29.2
4.7
deg