NB-IoT NPRACH Measurement
R&S
®
CMW-KM300/-KS300
335
User Manual 1178.5689.02 ─ 06
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"Magnitude Error"
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"Phase Error"
Each of these single-preamble views shows a diagram and a statistical overview of
results.
Figure 4-6: Error Vector Magnitude view
The diagram shows the EVM / magnitude error / phase error in all 20 symbols of the
preamble. The values are RMS-averaged over the samples in each symbol.
For a description of the table rows, see
Chapter 4.3.2.6, "View TX Measurement"
For table columns and other elements, refer to
Chapter 4.3.2.9, "Common View Ele-
For query of the diagram contents via remote control, see:
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FETCh:NIOT:MEAS<i>:PRACh:TRACe:EVM:CURRent?
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FETCh:NIOT:MEAS<i>:PRACh:TRACe:MERRor:CURRent?
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FETCh:NIOT:MEAS<i>:PRACh:TRACe:PERRor:CURRent?
4.3.2.3
Views EVM vs Preamble, Power vs Preamble
This section applies to the following detailed views:
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"Error Vector Magnitude vs Preamble"
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"Power vs Preamble"
GUI Reference
深圳德标仪器
135-1095-0799
