LTE PRACH Measurement
R&S
®
CMW-KM5xx/-KS5xx
780
User Manual 1173.9628.02 ─ 16
4.5.1.3
Current and Statistical Results
The R&S
CMW repeats measurements according to the selected statistic count and
repetition mode. Consecutive measurement values are stored and used to calculate
statistical results, e.g. average, minimum, maximum and standard deviation.
See also: "Statistical Results" in the R&S
CMW user manual, chapter "System Over-
view"
4.5.1.4
Keywords
Selected keywords used in the command description are described in the following.
●
Command usage
If the usage is not explicitly stated, the command allows you to set parameters and
query parameters. Otherwise the command usage is stated as follows:
–
"Setting only": command can only be used to set parameters
–
"Query only": command can only be used to query parameters
–
"Event": command initiates an event
●
Parameter usage
The parameter usage is indicated by the keyword preceding the parameter(s):
–
"Parameters" are sent with a setting or query command and are returned as
the result of a query
–
"Setting parameters" are only sent with a setting command
–
"Query parameters" are only sent with a query command (to refine the query)
–
"Return values" are only returned as the result of a query
●
Firmware/Software:
Indicates the lowest software version supporting the command. Command
enhancements in later software versions are also indicated.
4.5.1.5
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.
Command Reference
深圳德标仪器
135-1095-0799
