FETCh:PMODulation? Common Results

Last Updated: August 29, 2007

These commands return results that are applicable to the entire Power and Modulation Quality (PMOD) measurement suite.

• FETCh:PMODulation[:BURSt([1]|2)][:PARTial]:EPSK?

• FETCh:PMODulation[:BURSt([1]|2)][:PARTial][:GMSK]?

• FETCh:PMODulation[:BURSt([1]|2)]:ALL[:GMSK]?

• FETCh:PMODulation:ICOunt?

• FETCh:PMODulation:INTegrity?

• FETCh:PMODulation:MBURsts[:PARTial][:GMSK]?

For more information on the conventions used in the programming examples click here.

FETCh:PMODulation[:BURSt([1]|2)][:PARTial]:EPSK?

This command is only applicable to EGPRS 8PSK signals.

Queries the integrity indicator, power versus time upper limit margin time, power versus time lower limit margin time, power versus time carrier power (average), maximum RMS EVM, average peak EVM, 95th percentile EVM, worst frequency error, average origin offset, average RMS phase error, maximum peak phase error, average RMS magnitude error, maximum peak magnitude error, average amplitude droop, and the average IQ imbalance.  

Returns NAN if the burst is GMSK.

Query Range:

• Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.

• Power versus time upper limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)   

• Power versus time lower limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)

• TX power (average): <nr3> in dBm and 9.91 E+37 (NAN)

• RMS Error Vector Magnitude: <nr3> in % and 9.91 E+37 (NAN)

• Peak Error Vector Magnitude: <nr3> in % and 9.91 E+37 (NAN)

• 95th Percentile Error Vector Magnitude: <nr3> in % and 9.91 E+37 (NAN)

• Worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)

• Origin Offset Suppression: <nr3> in dB and 9.91 E+37 (NAN)

• Maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• RMS Magnitude Error: <nr3> in % and 9.91 E+37 (NAN)

• Peak Magnitude Error: <nr3> in % and 9.91 E+37 (NAN)

• Amplitude Droop: <nr3> in dB and 9.91 E+37 (NAN)

• IQ Imbalance: <nr3> in dB and 9.91 E+37 (NAN)

Test Set Requirements: E6601A WCTS Program Version A.03 and above

Example:

' Query Power and Modulation Quality measurement suite results for EGPRS.

TestSet.WriteString("FETCh:PMODulation:EPSK?")

FETCh:PMODulation[:BURSt([1]|2)][:PARTial][:GMSK]?

Queries the integrity indicator, power versus time upper limit margin time, power versus time lower limit margin time, power versus time carrier power (average), maximum RMS phase error, maximum peak phase error, and the worst frequency error.  

Returns NAN if EGPRS is licensed and the EGPRS state is on and the burst is 8PSK.

Query Range:

• Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.

• Power versus time upper limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)   

• Power versus time lower limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)

• Power versus time carrier power (average):  <nr3> in dBm and 9.91 E+37 (NAN)

• Maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)

Test Set Requirements: E6601A WCTS Program Version A.01 and above

Example:

' Query Power and Modulation Quality measurement suite results for burst 2.

TestSet.WriteString("FETCh:PMODulation:BURSt2?")

FETCh:PMODulation[:BURSt([1]|2)]:ALL[:GMSK]?

Queries the integrity indicator, power versus time upper limit margin time, power versus time lower limit margin time, power versus time carrier power (average), maximum RMS phase error, maximum peak phase error, worst frequency error, and up to 12 power versus time maximum power levels.  

Returns NAN if EGPRS is licensed and the EGPRS state is on and the burst is 8PSK.

Query Range:

• Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.

• Power versus time upper limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)   

• Power versus time lower limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)

• Power versus Time carrier power (average): <nr3> in dBm and 9.91 E+37 (NAN)

• Maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)

• Up to 12 maximum power level results corresponding to time offset entries in the power versus time table of user-defined time offsets: <nr3> in dBc and 9.91 E+37 (NAN)

Test Set Requirements: E6601A WCTS Program Version A.02 and above

Example:

' Query all of the Power and Modulation Quality measurement suite results for burst 1.

TestSet.WriteString("FETCh:PMODulation:BURSt1:ALL?")

FETCh:PMODulation:ICOunt?

Queries the intermediate count of Power and Modulation Quality multi-measurements completed.

Query Range: 0 to 999

Test Set Requirements: E6601A WCTS Program Version A.02 and above

Example:

' Queries the intermediate total number of measurements completed for the Power and Modulation Quality measurement suite.

TestSet.WriteString("FETCh:PMODulation:ICOunt?")

FETCh:PMODulation:INTegrity?

Queries the integrity indicator for the last Power and Modulation Quality measurement suite completed. Zero indicates normal.

For non-zero integrity indicators, refer to Measurement Integrity Indicator.

Query Range: See Measurement Integrity Indicator.

Test Set Requirements: E6601A WCTS Program Version A.01 and above

Example:

' Query the integrity indicator for the last Power and Modulation Quality measurement suite completed.

TestSet.WriteString("FETCh:PMODulation:INTegrity?")

FETCh:PMODulation:MBURsts[:PARTial][:GMSK]?

Queries the following Power and Modulation Quality measurement suite results for all bursts in the multislot configuration: integrity indicator, power versus time upper limit margin time, power versus time lower limit margin time, burst 1 power versus time carrier power (average), burst 1 maximum RMS phase error, burst 1 maximum peak phase error, burst 1 worst frequency error, burst 2 power versus time carrier power (average), burst 2 maximum RMS phase error, burst 2 maximum peak phase error, and burst 2 worst frequency error.

Returns NAN if EGPRS  is licensed and the EGPRS state is on and the burst is 8PSK.

Query Range:

• Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.

• Power versus time upper limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)   

• Power versus time lower limit margin time worst case result: <nr3> in s and 9.91 E+37 (NAN)

• Burst 1 power versus time carrier power (average):  <nr3> in dBm and 9.91 E+37 (NAN)

• Burst 1 maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Burst 1 maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Burst 1 worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)

• Burst 2 power versus time carrier power (average): <nr3> in dBm and 9.91 E+37 (NAN)

• Burst 2 maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Burst 2 maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)

• Burst 2 worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)

Test Set Requirements: E6601A WCTS Program Version A.01 and above

Example:

' Query the Power and Modulation Quality measurement suite results for all bursts.

TestSet.WriteString("FETCh:PMODulation:MBURsts?")