Chapter 9 — TDSCDMA Commands 9-7 :MEASure Subsystem
MS2720T PM PN: 10580-00341 Rev. C 9-11
:MEASure:DEMod:CDPData?
Title: Measure Demodulator Code Domain Power Data
Description: Sets the active measurement to Code Domain Data, sets the default
measurement parameters, triggers a new measurement and returns the
Slot Power, DwPTS Power, Channel Power RRC, Frequency Error in
Hz, Frequency Error in PPM, EVM RMS, EVM Peak, RMS Phase Error,
Carrier Feed Through, DwPTS EVM, DwPTS PCDE, CDP Noise Floor,
CDP Threshold, Tau, Selected Slot, Sync DL Code, Scrambling Code,
Max Users, Spread Factor, Data Modulation Type, Scrambling Code 1,
Scrambling Code 2, Scrambling Code 3, and Scrambling Code 4
measurement results. It is a combination of the following commands
:CONFigure:DEMod CDPower and :READ:DEMod:CDPData? To make
a CDP Data measurement with settings other than the default values
send:
:CONFigure:DEMod CDPData
Commands to set desired settings
:READ:DEMod:CDPData?
Data is returned as 24 comma-delimited values: Slot Power in dBm,
DwPTS Power in dBm, Channel Power RRC in dBm, Freq Error in Hz,
Freq Error in PPM, EVM RMS percentage, EVM Peak in percentage,
RMS Phase Error in percentage, Carrier Feed Through in dB, DwPTS
EVM in percentage, DwPTS PCDE in dB, CDP Noise Floor in dB, CDP
Threshold hold in dB, Tau in nanoseconds, Sync DL Code in unitless
number, Scrambling Code in unitless number, Max User in unitless
number, Spread Factor in dB, Data Modulation Type (0 = Noise, 1 =
QPSK, 2 = 8PSK, 3 = 16QAM), Scrambling Code 1 in dB, Scrambling
Code 2 in dB, Scrambling Code 3 in dB, and Scrambling Code 4 in dB.
All invalid values are replaced with “--”.
Related Command: :CONFigure:DEMod CDPData
:READ:DEMod:CDPData?
:FETCh:DEMod:CDPData?
Front Panel
Access: Measurements, Demodulator, CDP Data
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