General Information : TDSCDMA Commands : :READ Subsystem

:READ Subsystem
This set of commands combines the ABORt, INITiate and FETCh commands. It aborts any current triggering sequence and sets the trigger state to idle. It then initiates a new active measurement (i.e. begins the collection of new data). When the measurement is complete, it returns the result. These commands will not switch to another measurement.
To get the current measurement data, use the FETCh command.
:READ:DEMod:CDPData?
Title
Read Demodulator Code Domain Data
Description
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, Scrambing Code 2, Scrambling Code 3, and Scrambling Code 4 measurement results. It is a combination of the following commands :ABORt; :INITiate; :FETCh:DEMod:CDPData?
In order for the data to be accurate, the Code Domain Power measurement must be the active measurement (specified by :CONFigure:DEMod CDPData. The current measurement can be queried using :CONFigure?
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
:MEASure:DEMod:CDPData?
:FETCh:DEMod:CDPData?
Front Panel Access
Measurement, Demodulator, CDP Data
:READ:OTA?
Title
Read OTA Pilot Scan
Description
Sets the active measurement to Pilot Scan, sets the default measurement parameters, triggers a new measurement and returns DwPTS Power and Pilot Dominance. It is a combination of the following commands :ABORt; :INITiate; :FETCh:OTA? In order for the data to be accurate, the Pilot Scan must be the active measurement (specified by :CONFigure:OTA. The current measurement can be queried using :CONFigure?
Data is returned as 2 comma-delimited values: DwPTS Power in dBm, and Pilot Dominance in dBm. All invalid values are replaced with “--”.
Related Command
:CONFigure:OTA
:MEASure:OTA?
:FETCh:OTA?
Front Panel Access
Measurement, OTA, Pilot Scan
:READ:RF:EMISsion?
Title
Read RF Spurious Emission
Description
Triggers a new measurement and returns the Left Power, Center Power, Right Power, followed by Marker Number, Marker Start Frequency, Marker Stop Frequency, Marker Peak Power Frequency, Marker Peak Power, Marker Power Margin, Marker RBW, Marker’s Pass/Fail Status for all markers/boundaries markers/boundaries. It is a combination of the following commands :ABORt; :INITiate; :FETCh:RF:EMISsion? In order for the data to be accurate, the Spurious Emission measurement must be the active measurement (specified by :CONFigure:RF EMISsion. The current measurement can be queried using :CONFigure?
Data is returned as 3 comma-delimited values for Left Power, Center Power, and Right Power in dBm. They are followed by 8 comma-delimited values for each marker/boundary: Marker number, Marker Start Frequency in MHz, Marker Stop Frequency in MHz, Marker Peak Power Frequency in MHz, Marker Peak Power in dBm, Marker Power Margin in dB, RBW in MHz, and Pass/Fail.
Related Command
:CONFigure:RF EMISsion
:MEASure:RF:EMISsion?
:FETCh:RF:EMISsion?
Front Panel Access
Measurement, RF, Spurious Emission
:READ:RF:PVTSlot?
Title
Read Power vs. Time
Description
Triggers a new measurement and returns the Channel Power RRC, Sync Download Power, Sync Upload Power, On Off Ratio, Peak Average Ratio, Dw Up Delta, Slot 1 Power, Slot 2 Power, Slot 3 Power, Slot 4 Power, Slot 5 Power, Slot 6 Power, and Slot 7 Power. It is a combination of the following commands CONFigure:RF PVTSlot; :READ:RF:PVTSlot? To make an RF ACPR measurement with settings other than the default values send:
:CONFigure:RF PVTSlot
Commands to set desired settings
:READ:RF:PVTSlot?
Data is returned as 13 comma-delimited values: The Channel Power RRC in dBm, Sync Download Power in dBm, Sync Upload Power in dBm, On Off Ratio in dB, Peak Average Ratio in dB, Dw Up Delta in dB, Slot 1 to 7 Power in dBm.
Related Command
:CONFigure:RF PVTSlot
:MEASure:RF:PVTSlot?
:FETCh:RF:PVTSlot?
 
:READ:RF:SPECtrum?
Title
Read RF Spectrum
Description
Triggers a new measurement and returns the Channel Power, Occupied Bandwidth, Left Channel Power, Left Channel Occupied Bandwidth, Right Channel Power and Right Channel Occupied Bandwidth measurement results. It is a combination of the following commands :ABORt; :INITiate; :FETCh:RF:SPECtrum? In order for the data to be accurate, the Channel Spectrum measurement must be the active measurement (specified by :CONFigure:RF SPECtrum). The current measurement can be queried using :CONFigure?
Data is returned as 2 comma-delimited values: Channel Power in dBm, and Occupied bandwidth in Hz.
Default Value
42
Related Command
:FETCh:RF:SPECtrum?
:CONFigure:RF SPECtrum
:MEASure:RF:SPECtrum?
Front Panel Access
Measurement, RF, Channel Spectrum
 
 
 

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