WILLTEK 4403 - Page 372

Appendix A SCPI Command Reference
MEASure subsystem
350 WCDMA Options Version 6.20
:MEASure:WCDMa:ARRay:RFTX:MODQuality:ERMS
:MEASure:WCDMa:ARRay:RFTX:MODQuality:EPEAk
Query
The query form of this command starts the measurements and - after all 10 measure-
ments have been completed and all measurement results obtained - delivers a string,
containing 10 measurement result values, separated with commas. The order and
type of these measurement result values delivered is as follows:
1. EVM RMS, floating point real number representing the RMS vector error measure-
ment in percent,
2. EVM Peak, floating point real number representing the peak vector error mea-
surement in percent,
3. Magnitude error RMS, floating point real number representing the RMS
magnitude vector error measurement in percent,
4. Magnitude error Peak, floating point real number representing the PEAK
magnitude vector error measurement in percent,
5. Phase error RMS, floating point real number representing the RMS phase
vector error measurement in degree,
6. Phase error Peak, floating point real number representing the PEAK phase
vector error measurement in degree,
7. Frequency error, floating point real number representing the mobile's fre-
quency error,
8. RHO, floating point real number representing the mobile's modulation quality,
9. I/Q Offset, a floating point value with the result in dBc, representing the
result of the origin offset vector error measurement,
10. I/Q Imbalance, floating point real number representing the result of the IQ
Imbalance vector error measurement with the result in dB.
Note: For a further description of the single measurements, see description of the
related commands below.
Example
:MEAS:WCDM:ARR:RFTX:MODQ:ALL? 5
In this case, all relevant RF TX measurements will be performed in a sequence.
Syntax
:MEASure:WCDMa:ARRay:RFTX:MODQuality:ERMS <Int1>
Parameters
Int1 is an integer. The minimum value for Int1
is 0, the maximum value is 100.
The default value is 0.
Description
Performs an RMS vector error measurement as many times as specified.
Query
The query form of this command will perform the measurement the specified number
of times, and return the results.
Example
:MEAS:WCDM:ARR:RFTX:MODQ:ERMS? 19
Syntax
:MEASure:WCDMa:ARRay:RFTX:MODQuality:EPEAk <Int1>
Parameters
Int1 is an integer. The minimum value for Int1
is 0, the maximum value is 100.
The default value is 0.
Description
Performs a peak vector error measurement as many times as specified.
Query
The query form of this command will perform the measurement the specified number
of times, and return the results.
Example
:MEAS:WCDM:ARR:RFTX:MODQ:EPEA? 10