Programming
R&S
®
CMW-KM750/-KM751
55
User Manual 1173.9670.02 ─ 05
CALCulate:TDSCdma:MEAS:MEValuation:BER?
FETCh:TDSCdma:MEAS:MEValuation:LIMit:PVTime:FAILure?
5.1.7 Single-Shot and Continuous Measurements
// *****************************************************************************
// Start single-shot measurement, return magnitude error trace.
// Return maximum magnitude error trace and maximum phase (without repeating
// the measurement. Query the measurement state (should be "RDY").
// *****************************************************************************
INIT:TDSCdma:MEAS:MEValuation
FETCh:TDSCdma:MEAS:MEValuation:TRACe:MERRor:CURRent?
FETCh:TDSCdma:MEAS:MEValuation:TRACe:MERRor:MAXimum?
FETCh:TDSCdma:MEAS:MEValuation:TRACe:PERRor:MAXimum?
FETCh:TDSCdma:MEAS:MEValuation:STATe?
// *****************************************************************************
// Start continuous measurement; wait for 5 ms and return average result.
// Query measurement state and substates (should be "RUN,ADJ,ACT").
// *****************************************************************************
CONFigure:TDSCdma:MEAS:MEValuation:REPetition CONTinuous
INIT:TDSCdma:MEAS:MEValuation
Pause 5000
FETCh:TDSCdma:MEAS:MEValuation:TRACe:EVMagnitude:AVERage?
FETCh:TDSCdma:MEAS:MEValuation:STATe:ALL?
5.2 Using the TD-SCDMA List Mode
The TD-SCDMA multi evaluation list mode is programmed as follows:
●
The measurement is controlled by SCPI commands with the following syn-
tax:
...TDSCdma:MEAS:MEValuation:LIST...
●
Use general commands of the type
...:TDSCdma:MEAS...
(no
:MEValuation
mnemonic) to define the signal routing and perform general RF and analyzer settings.
●
After a
*RST
, the measurement is switched off and list mode is disabled. Use
CONFigure:TDSCdma:MEAS:MEValuation:LIST ON
to enable the list mode and
INIT:TDSCdma:MEAS:MEValuation
to initiate a single-shot measurement.
●
Use
FETCh:TDSCdma:MEAS:MEValuation:LIST:...?
commands to retrieve
the results.
Speed considerations
The following measurement settings have an impact on the measurement speed:
●
The number and size of the segments and the number of measured subframes in
each segment
●
The number and type of results that the R&S
CMW needs to calculate
Using the TD-SCDMA List Mode
