Rohde & Schwarz R&S CMW-KM300, Руководство пользователя, Страница: 259 / 388

NB-IoT Multi-Evaluation Measurement
R&S
®
CMW-KM300/-KS300
259 User Manual 1178.5689.02 ─ 06
Example for an output array: 0, 10.22, 10.15, 10.01, 10.29, 100 (reliability = 0, followed
by 5 numeric measurement values).
In list mode, a zero reliability indicator indicates that the results in all measured seg-
ments are valid. A non-zero value indicates that an error occurred in at least one of the
measured segments.
The reliability indicator has one of the following values:
●
0 ("No Error") :
Measurement values available, no error detected.
●
1 ("Measurement Timeout") :
The measurement has been stopped after the configured measurement timeout.
Measurement results can be available. However, at least a part of the measure-
ment provides only
INValid
results or has not completed the full statistic count.
●
2 ("Capture Buffer Overflow") :
The measurement configuration results in a capture length that exceeds the availa-
ble memory.
●
3 ("Input Overdriven") / 4 ("Input Underdriven") :
The accuracy of measurement results can be impaired because the input signal
level was too high / too low.
●
6 ("Trigger Timeout") :
The measurement could not be started or continued because no trigger event was
detected.
●
7 ("Acquisition Error") :
The R&S CMW could not properly decode the RF input signal.
●
8 ("Sync Error") :
The R&S CMW could not synchronize to the RF input signal.
●
9 ("Uncal") :
Due to an inappropriate configuration of resolution bandwidth, video bandwidth or
sweep time, the measurement results are not within the specified data sheet limits.
●
15 ("Reference Frequency Error") :
The instrument has been configured to use an external reference signal. But the
reference oscillator could not be phase-locked to the external signal (for example
signal level too low, frequency out of range or reference signal not available at all).
●
16 ("RF Not Available") :
The measurement could not be started because the configured RF input path was
not active.
This problem can occur if a measurement is started in combined signal path mode
and the master application has not yet activated the input path.
●
17 ("RF Level Not Settled") / 18 ("RF Frequency Not Settled") :
The measurement could not be started because the R&S CMW was not yet ready
to deliver stable results after a change of the input signal power / the input signal
frequency.
●
19 ("Call Not Established") :
For measurements: The measurement could not be started because no signaling
connection to the DUT was established.
For DAU IMS service: Establishing a voice over IMS call failed.
●
20 ("Call Type Not Usable") :
Command Reference
深圳德标仪器
135-1095-0799