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WCDMA Multi Evaluation Measurement
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
612
User Manual 1173.9657.02 ─ 11
3.4.2 Using WCDMA List Mode
The WCDMA multi evaluation list mode is programmed as follows:
●
The measurement is controlled by SCPI commands with the following syn-
tax:
...WCDMa:MEAS:MEValuation:LIST...
●
Use general commands of the type
...:WCDMa:MEAS...
(no
:MEValuation
mnemonic) to define the signal routing and perform RF and analyzer settings.
●
After a
*RST
, the measurement is switched off and list mode is disabled. Use
CONFigure:WCDMa:MEAS:MEValuation:LIST ON
to enable the list mode and
INIT:WCDMa:MEAS:MEValuation
to initiate a single-shot measurement.
●
Use
FETCh:WCDMa: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 slots in each
segment
●
The number and type of results that the R&S
CMW needs to calculate
3.4.2.1
Specifying Global Measurement Settings
// *****************************************************************************
// System-Reset
// *****************************************************************************
*RST; *OPC?
*CLS; *OPC?
// *****************************************************************************
// Define signal routing and external attenuation
// (Note: The general RF frequency and expected power settings are
// not used in list mode)
// *****************************************************************************
ROUTe:WCDMa:MEAS:SCENario:SALone RF1C, RX1
CONFigure:WCDMa:MEAS:RFSettings:EATTenuation 2
3.4.2.2
Specifying List Mode Settings
// *****************************************************************************
// Define 2 segments with a length of 20 timeslots each
// and different analyzer settings.
// *****************************************************************************
CONFigure:WCDMa:MEAS:MEValuation:LIST:COUNt 2
CONFigure:WCDMa:MEAS:MEValuation:LIST:SEGMent1:SETup 20, 1, 19.41E+8, OFF
CONFigure:WCDMa:MEAS:MEValuation:LIST:SEGMent2:SETup 20, -10, 19.42E+8, OFF
// *****************************************************************************
Programming
深圳德标仪器
135-1095-0799