CDMA2000 Measurements
R&S
®
CMW-KG8xx/-KM8xx/-KS8xx
770
User Manual 1173.9511.02 ─ 11
CONFigure:CDMA:MEAS:OLTR:PSTep:DIRection UP
CONFigure:CDMA:MEAS:OLTR:RPINterval 12
CONFigure:CDMA:MEAS:OLTR:RPINterval:TIME?
CONFigure:CDMA:MEAS:OLTR:GINTerval 30
CONFigure:CDMA:MEAS:OLTR:GINTerval:TIME?
CONFigure:CDMA:MEAS:OLTR:MOEXception ON
CONFigure:CDMA:MEAS:OLTR:LIMit:ILOWer -2
5.4.1.8
OLTR: Single-Shot Measurement
// *************************************************************************
// Start single-shot measurement and return results for the open loop time
// response power up and the limit violation sequence 2.
// Query the measurement state (should be "RDY").
// Query measurement state and substates (should be "RUN,ADJ,ACT").
// *************************************************************************
INITiate:CDMA:MEAS:OLTR
FETCh:CDMA:MEAS:OLTR:SEQuence2:TRACe:UP?
FETCh:CDMA:MEAS:OLTR:SEQuence2:TRACe:UP:STATe?
FETCh:CDMA:MEAS:RPINterval:SEQuence2:TRACe:UP?
FETCh:CDMA:MEAS:OLTR:STATe?
FETCh:CDMA:MEAS:OLTR:STATe:ALL?
5.4.2 Using CDMA2000 List Mode
The CDMA2000 multi evaluation measurement is programmed as follows:
●
The measurement is controlled by SCPI commands with the following syn-
tax:
...CDMA:MEAS:MEValuation:LIST...
●
Use general commands of the type
...:CDMA:MEAS:...
(no
:MEValuation
/
no
:OLTR
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:CDMA:MEAS:MEValuation:LIST ON
to enable the list mode and
INIT:CDMA:MEAS:MEValuation
to initiate a single-shot measurement.
●
Use
FETCh:CDMA:MEAS:MEValuation:LIST:...?
commands to retrieve the
results.
Speeding up list mode measurements
List mode tests are often used in production lines. The same tests are repeated again
and again for different ATs. Optimizing the test duration is important.
Consider the following rules to minimize the test duration:
●
Reduce the number and size of the segments and the statistical length as far as
possible for your use case.
●
Enable only the results that you need / disable the other result calculations.
Programming
深圳德标仪器
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