Last Updated: August 29, 2007
These commands return results for the Phase and Frequency Error measurement in the Power and Modulation Quality (PMOD) measurement suite.
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:DROop[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:EVM:RMS[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:FERRor[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:IQIMbalance[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:IQIMbalance:ALL?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:MERRor:PEAK[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:MERRor:PEAK:ALL?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:MERRor:RMS[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:MERRor:RMS:ALL?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:MERRor:TRACe?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:OOFFset[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:PEAK[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:PERRor:PEAK[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:PERRor:PEAK:ALL?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:PERRor:RMS[:PARTial]?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:PERRor:RMS:ALL?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:PERRor:TRACe?
FETCh:PMODulation:MACCuracy:EVM[:BURSt([1]|2)]:RMS[:PARTial]?
FETCh:PMODulation:MACCuracy:PFERror[:BURSt([1]|2)][:PARTial]?
For more information on the conventions used in the programming examples click here.
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM measurement and returns; integrity indicator, maximum RMS EVM, average peak EVM, 95th percentile, worst frequency error, and average origin offset.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Maximum RMS EVM: <nr3> in % and 9.91 E+37 (NAN)
Average Peak EVM: <nr3> in % and 9.91 E+37 (NAN)
95th Percentile EVM: <nr3> in % and 9.91 E+37 (NAN)
Worst Frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Average Origin Offset: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM measurement.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries integrity indicator, 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.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Maximum RMS EVM: <nr3> in % and 9.91 E+37 (NAN)
Average Peak EVM: <nr3> in % and 9.91 E+37 (NAN)
95th Percentile EVM: <nr3> in % and 9.91 E+37 (NAN)
Worst Frequency Error: <nr3> in Hz and 9.91 E+37 (NAN)
Average Origin Offset: <nr3> in dB and 9.91 E+37 (NAN)
Average 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)
Average RMS Magnitude Error: <nr3> in % and 9.91 E+37 (NAN)
Maximum Peak Magnitude Error: <nr3> in % and 9.91 E+37 (NAN)
Average Amplitude Droop: <nr3> in dB and 9.91 E+37 (NAN)
Average IQ Imbalance: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all of the EVM results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM amplitude droop results and returns; integrity indicator and average amplitude droop.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Average Droop: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM amplitude droop results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:DROop?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM amplitude droop results and returns; integrity indicator, minimum amplitude droop, maximum amplitude droop, average amplitude droop, and the amplitude droop standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum Droop: <nr3> in dB and 9.91 E+37 (NAN)
Maximum Droop: <nr3> in dB and 9.91 E+37 (NAN)
Average Droop: <nr3> in dB and 9.91 E+37 (NAN)
Standard Deviation of the Droop: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all the EVM amplitude droop results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:DROop:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM RMS results and returns; integrity indicator and the maximum RMS EVM.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Maximum RMS EVM: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the partial EVM RMS results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:EVM:RMS?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the integrity indicator, and the worst frequency error.
The worst frequency error is a signed quantity which returns the frequency error out of all the individual sub-measurements taken, which is furthest from 0 Hz. In the case where the most positive and most negative frequency errors are the same, the positive one is returned.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Worst Frequency Error: <nr3> in Hz and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all frequency error results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:FERRor?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries all the EVM frequency error results and returns; integrity indicator, minimum frequency error, maximum frequency error, average frequency error, frequency error standard deviation, and the worst frequency error.
The worst frequency error is a signed quantity which returns the frequency error out of all the individual sub-measurements taken, which is furthest from 0 Hz. In the case where the most positive and most negative frequency errors are the same, the positive one is returned.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum Frequency Error: <nr3> in Hz and 9.91 E+37 (NAN) and 9.91 E+37 (NAN)
Maximum Frequency Error: <nr3> in Hz and 9.91 E+37 (NAN)
Average Frequency Error: <nr3> in Hz and 9.91 E+37 (NAN)
Frequency Error Standard Deviation: <nr3> in Hz 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.03 and above
Example:
' Query all EVM frequency error results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:FERRor:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM Histogram measurement and returns; integrity indicator, histogram number, histogram maximum, and an array of 201 points representing a histogram of the EVM results for the measured burst or bursts. The last point returned in the array is the number of samples whose EVM value exceeded the maximum value allowed by the histogram at its current resolution setting.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Histogram Number: <nr1>
Histogram Maximum: <nr3>
Histogram Array:
0 to 142 when the multi-measurement count is OFF or 0
0 to 141858 when multi-measurements are used
-1 when there is no valid data to return
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM histogram results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:HISTogram?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM IQ imbalance result and returns the integrity indicator and the average IQ imbalance.
The IQ Imbalance State must be turned on for this query to return a result other than NAN. See SETup:PMODulation:MACCuracy:EVM:IQIMbalance:STATe[?].
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Average IQ Imbalance: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the partial EVM IQ imbalance results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:IQIMbalance?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries all the EVM IQ imbalance results and returns; integrity indicator, minimum IQ imbalance, maximum IQ imbalance, average IQ imbalance, and the IQ imbalance standard deviation.
The IQ Imbalance State must be turned on for this query to return a result other than NAN. See SETup:PMODulation:MACCuracy:EVM:IQIMbalance:STATe[?].
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum IQ Imbalance: <nr3> in dB and 9.91 E+37 (NAN)
Maximum IQ Imbalance: <nr3> in dB and 9.91 E+37 (NAN)
Average IQ Imbalance: <nr3> in dB and 9.91 E+37 (NAN)
IQ Imbalance Standard Deviation: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all the EVM IQ imbalance results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:IQIMbalance:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM peak magnitude error and returns the integrity indicator and the maximum peak magnitude error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Maximum peak magnitude error: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM peak magnitude error result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:MERRor:PEAK?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries all the EVM peak magnitude errors and returns; integrity indicator, minimum peak magnitude error, maximum peak magnitude error, average peak magnitude error, and the peak magnitude error standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum peak magnitude error: <nr3> in % and 9.91 E+37 (NAN)
Maximum peak magnitude error: <nr3> in % and 9.91 E+37 (NAN)
Average peak magnitude error: <nr3> in % and 9.91 E+37 (NAN)
Peak magnitude error standard deviation: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all the EVM peak magnitude error results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:MERRor:PEAK:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM RMS magnitude error and returns the integrity indicator and the average RMS magnitude error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Average RMS magnitude error: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM RMS result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:MERRor:RMS?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries all the EVM RMS magnitude errors and returns; integrity indicator, minimum RMS magnitude error, maximum RMS magnitude error, average RMS magnitude error, and the RMS magnitude error standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum RMS magnitude error: <nr3> in % and 9.91 E+37 (NAN)
Maximum RMS magnitude error: <nr3> in % and 9.91 E+37 (NAN)
Average RMS magnitude error: <nr3> in % and 9.91 E+37 (NAN)
RMS magnitude error standard deviation: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all the EVM RMS magnitude error results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:MERRor:RMS:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM magnitude error trace and returns; integrity indicator, number of points in the magnitude error trace, position of the middle of bit0 for the specified burst, time increment between samples, and an array (the size of the number of points in the trace) representing the magnitude error (in percent) for the specified burst. When multi-measurements are turned on, this is the trace data for the last burst measured.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Number of points in the magnitude error trace: <nr1> and 1 if there are no points.
Trace bit 0 position for the specified burst: <nr3> in seconds and 9.91 E+37 (NAN)
Time increment between samples: 1/10th of a bit period (369.2308 ns) and 9.91 E+37 (NAN)
Magnitude error trace array for the specified burst: <nr3> array in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM magnitude error result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:MERRor:TRACe?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM origin offset results and returns the integrity indicator and the average origin offset.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Average origin offset: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM origin offset result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:OOFFset?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries all the EVM origin offset results and returns; integrity indicator, minimum origin offset, maximum origin offset, average origin offset, and the origin offset standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum origin offset: <nr3> in dB and 9.91 E+37 (NAN)
Maximum origin offset: <nr3> in dB and 9.91 E+37 (NAN)
Average origin offset: <nr3> in dB and 9.91 E+37 (NAN)
Origin offset standard deviation: <nr3> in dB and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all the EVM origin offset results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:OOFFset:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM peak results and returns; integrity indicator and average peak EVM.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Average Peak EVM: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM average peak result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PEAK?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries all the EVM peak results and returns; integrity indicator, minimum peak EVM, maximum peak EVM, average peak EVM and the peak EVM standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum Peak EVM: <nr3> in % and 9.91 E+37 (NAN)
Maximum Peak EVM: <nr3> in % and 9.91 E+37 (NAN)
Average Peak EVM: <nr3> in % and 9.91 E+37 (NAN)
EVM Standard Deviation: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM peak results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PEAK:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the 95th percentile EVM result and returns; integrity indicator and the average 95th percentile.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Average 95th Percentile: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the 95% percentile EVM result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PERCentile?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM peak phase error results and returns the integrity indicator and the maximum peak phase error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM peak phase result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PERRor:PEAK?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries all the EVM peak phase error results and returns; integrity indicator, minimum peak phase error, maximum peak phase error, average peak phase error, and the peak phase error standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Average peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Peak phase error standard deviation: <nr3> in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all the EVM peak phase error results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PERRor:PEAK:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM RMS phase error results and returns the integrity indicator and the average RMS phase error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Average RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM RMS phase error result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PERRor:RMS?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM RMS phase error results and returns; integrity indicator, minimum RMS phase error, maximum RMS phase error, average RMS phase error, and the RMS phase error standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Average RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
RMS phase error standard deviation: <nr3> in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query all the EVM RMS phase error results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PERRor:RMS:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM phase error trace results and returns; the integrity indicator, number of points in the phase error trace, trace bit 0 position for the specified burst, time increment between samples, and an array representing the phase error (in percent) for the measured burst. When multi-measurements are turned on, this is the trace data for the last burst measured.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Number of points in the phase error trace: <nr1>
Trace bit 0 position for the specified burst: <nr3> in secondsand 9.91 E+37 (NAN)
Time increment between samples: 1/10th of a bit period (369.2308 ns) and 9.91 E+37 (NAN)
Phase error trace for the specified burst: <nr3> array in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM phase error trace results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:PERRor:TRACe?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM RMS results and returns the integrity indicator and the maximum RMS EVM.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Maximum RMS EVM: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM RMS results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:RMS?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM RMS results and returns; integrity indicator, minimum RMS EVM, maximum RMS EVM, average RMS EVM, and the RMS EVM standard deviation.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum RMS EVM: <nr3> in % and 9.91 E+37 (NAN)
Maximum RMS EVM: <nr3> in % and 9.91 E+37 (NAN)
Average RMS EVM: <nr3> in % and 9.91 E+37 (NAN)
RMS EVM Standard Deviation: <nr3> in % and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM RMS results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:RMS:ALL?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM measurement and returns; integrity indicator, number of symbols, and 148 points representing the demodulated symbols for the burst measured. The first three and last three results in the array correspond to the burst's tail bits.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Number of symbols: <nr1>
Symbol data array: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | -1 (where -1 indicates a symbol that could not be demodulated)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM symbol results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:SYMBol?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM trace and returns; integrity indicator, number of points in the EVM trace, position of the middle of bit0 for the specified burst, time increment between samples, and an array representing the EVM trace (in %) for the specified burst.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Number of points in the EVM trace: <nr1>
Trace bit 0 position for the specified burst: <nr3> in seconds and 9.91 E+37 (NAN)
Time increment between samples: 1/10th of a bit period (369.2308 ns) and 9.91 E+37 (NAN)
EVM trace for the specified burst: <nr3> array and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM trace result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:TRACe?")
This command is only applicable with an EGPRS license.
This command is only applicable to EGPRS 8PSK signals.
Queries the EVM pass/fail results and returns; an overall EVM pass/fail, RMS EVM pass/fail, peak EVM pass/fail, 95th percentile EVM pass/fail, frequency error pass/fail, and origin offset pass/fail.
The overall EVM pass/fail result is a pass only if all the other pass/fail results are a pass (that is, RMS EVM, Peak EVM, 95th Percentile EVM, Frequency Error, and Origin Offset).
Returns a pass if only GMSK bursts are expected.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Overall EVM pass/fail: 0 (pass), 1 (fail)
RMS EVM pass/fail: 0 (pass), 1 (fail)
Peak EVM pass/fail: 0 (pass), 1 (fail)
95th percentile EVM pass/fail: 0 (pass), 1 (fail)
Frequency error pass/fail: 0 (pass), 1 (fail)
Origin offset pass/fail: 0 (pass), 1 (fail)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the EVM overall pass/fail result.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:EVM:FAIL?")
Queries the integrity indicator, maximum RMS phase error, maximum peak phase error, and the worst frequency error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
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 the Phase and Frequency Error measurement results for burst 2.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:PFERror:BURSt2?")
Queries the integrity indicator, minimum frequency error, maximum frequency error, average frequency error, worst frequency error, minimum peak phase error, maximum peak phase error, average peak phase error, minimum RMS phase error, maximum RMS phase error, and average RMS phase error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Minimum frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Maximum frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Average frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Minimum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Maximum peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Average peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Minimum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Average RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.01 and above
Example:
' Query all of the Phase and Frequency Error measurement results for burst 1.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:PFERror:BURSt1:ALL?")
Queries integrity indicator, number of points in the phase error trace, position of the middle of bit0 for the specified burst, time increment between samples, and an array representing the phase error trace.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Number of points in the phase error trace: <nr1>
Trace bit 0 position for the specified burst: <nr3> in seconds and 9.91 E+37 (NAN)
Time increment between samples: 1/10th of a bit period (369.2308 ns) and 9.91 E+37 (NAN)
Phase error trace array for the specified burst: <nr3> array in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the Phase and Frequency Error trace.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:PFERror:TRACe?")
Queries integrity indicator, the number of symbols measured, and an array of up to 148 points representing the demodulated symbols for the burst measured. The first three and last three results in the array correspond to the burst's tail bits.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Number of symbols: <nr1>
Array of symbol data: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | -1 (where -1 indicates a symbol that could not be demodulated)
Test Set Requirements: E6601A WCTS Program Version A.03 and above
Example:
' Query the symbol results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:PFERror:SYMBol?")
Queries integrity indicator, overall pass/fail indicator, RMS phase error pass/fail indicator, peak phase error pass/fail indicator, frequency error pass/fail indicator and the number of bursts taken.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Overall pass/fail result: 0 (pass), 1 (fail)
RMS phase error: 0 (pass), 1 (fail)
Peak phase error: 0 (pass), 1 (fail)
Frequency error: 0 (pass), 1 (fail)
Number of bursts: <nr1>
Test Set Requirements: E6601A WCTS Program Version A.01 and above
Example:
' Query the Phase and Frequency Error pass/fail results.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:PFERror:FAIL?")
Queries the following phase and frequency error measurement results for all bursts in the multislot configuration; integrity indicator, burst 1 maximum RMS phase error, burst 1 maximum peak phase error, burst 1 worst frequency error, burst 2 maximum RMS phase error, burst 2 maximum peak phase error, and burst 2 worst frequency error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
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 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 Phase and Frequency Error results for all bursts.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:PFERror:MBURsts?")
Queries the integrity indicator, and all of the phase and frequency error measurement results for all bursts in the multislot configuration; burst 1 minimum frequency error, burst 1 maximum frequency error, burst 1 average frequency error, burst 1 worst frequency error, burst 1 minimum peak phase error, burst 1 maximum peak phase error, burst 1 average peak phase error, burst 1 minimum RMS phase error, burst 1 maximum RMS phase error, burst 1 average RMS phase error, burst 2 minimum frequency error, burst 2 maximum frequency error, burst 2 average frequency error, burst 2 worst frequency error, burst 2 minimum peak phase error, burst 2 maximum peak phase error, burst 2 average peak phase error, burst 2 minimum RMS phase error, burst 2 maximum RMS phase error, and burst 2 average RMS phase error.
Query Range:
Power and modulation quality measurement suite integrity: See Measurement Integrity Indicator.
Burst 1 minimum frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 1 maximum frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 1 average frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 1 worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 1 minimum peak 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 average peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Burst 1 minimum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Burst 1 maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Burst 1 average RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Burst 2 minimum frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 2 maximum frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 2 average frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 2 worst frequency error: <nr3> in Hz and 9.91 E+37 (NAN)
Burst 2 minimum peak 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 average peak phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Burst 2 minimum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Burst 2 maximum RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Burst 2 average RMS phase error: <nr3> in degrees and 9.91 E+37 (NAN)
Test Set Requirements: E6601A WCTS Program Version A.01 and above
Example:
' Query all of the phase and frequency error results for all bursts in the multislot configuration.
TestSet.WriteString("FETCh:PMODulation:MACCuracy:PFERror:MBURsts:ALL?")