R&S CMW-KG8 Series, Руководство пользователя

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1xEV-DO Measurements
R&S
®
CMW-KG8xx/-KM8xx/-KS8xx
315 User Manual 1173.9511.02 ─ 11
3.5.1.6 Reliability Indicator
The first value in the output arrays of
FETCh...?, READ...?
and
CALCulate...?
queries indicates the most severe error that has occurred during the measurement.
Example for an output array: 0, 10.22, 10.15, 10.01, 10.29, 100 (reliability = 0, followed
by 5 numeric measurement values).
The reliability indicator has one of the following values:
●
0 (OK) :
Measurement values available, no error detected.
●
1 (Measurement Timeout) :
The measurement has been stopped after the (configurable) measurement time-
out. Measurement results may be available, however, at least a part of the mea-
surement provides only INValid results or has not completed the full statistic count.
●
2 (Capture Buffer Overflow) :
The measurement configuration results in a capture length, exceeding the availa-
ble memory.
●
3 (Overdriven) / 4 (Underdriven) :
The accuracy of measurement results may 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 ref-
erence oscillator could not be phase locked to the external signal (e.g. 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 may occur e.g. when a measurement is started in com-
bined signal path mode and the master application has not yet activated the input
path. The LEDs above the RF connectors indicate whether the input and output
paths are active.
●
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.
Command Reference
深圳德标仪器
135-1095-0799