NB-IoT NPRACH Measurement
R&S
®
CMW-KM300/-KS300
375
User Manual 1178.5689.02 ─ 06
Usage:
Query only
Firmware/Software:
V3.7.20
4.5.3.12
Phase Error Results (Traces)
The following commands return the phase error vs. symbol traces of the NPRACH
measurement.
FETCh:NIOT:MEAS<i>:PRACh:TRACe:PERRor:CURRent?
FETCh:NIOT:MEAS<i>:PRACh:TRACe:PERRor:AVERage?
FETCh:NIOT:MEAS<i>:PRACh:TRACe:PERRor:MAXimum?
READ:NIOT:MEAS<i>:PRACh:TRACe:PERRor:CURRent?
READ:NIOT:MEAS<i>:PRACh:TRACe:PERRor:AVERage?
READ:NIOT:MEAS<i>:PRACh:TRACe:PERRor:MAXimum?
Return the values of the phase error traces. Each value is averaged over the samples
in one preamble symbol. The results of the current, average and maximum traces can
be retrieved.
See also
Chapter 4.3.2.2, "Views EVM, Magnitude Error, Phase Error"
Return values:
<Reliability>
<Results>
Comma-separated list of 20 results, one result per symbol
Default unit: deg
Example:
See
Performing Single-Shot Measurements
Usage:
Query only
Firmware/Software:
V3.7.20
4.5.3.13
EVM vs. Preamble Results (Traces)
The following commands return the EVM vs. preamble trace of the NPRACH measure-
ment.
FETCh:NIOT:MEAS<i>:PRACh:TRACe:EVPReamble?
READ:NIOT:MEAS<i>:PRACh:TRACe:EVPReamble?
Return the values of the EVM vs. preamble traces.
See also
Chapter 4.3.2.3, "Views EVM vs Preamble, Power vs Preamble"
Return values:
<Reliability>
<Results>
Comma-separated list of 32 EVM values, for preamble 1 to 32
(NCAP for not measured preambles)
Default unit: %
Example:
See
Performing Single-Shot Measurements
Command Reference
深圳德标仪器
135-1095-0799