NB-IoT NPRACH Measurement
R&S
®
CMW-KM300/-KS300
359
User Manual 1178.5689.02 ─ 06
The inversion of the channel matrix failed for a MIMO measurement. Check that
the antennas are connected correctly to the instrument.
●
76 ("SIG CRC Failed")
The cyclic redundancy check of a SIGNAL field failed.
●
77 ("Parity Check Failed")
The parity check of a SIGNAL field failed.
●
78 ("Bursts Not Identical")
In training mode for composite MIMO measurements, at least some symbols of
sequential bursts need to be identical to be used as training data. Setting a fix
scrambler initialization can solve this problem.
●
79 ("Wrong Modulation")
The modulation type of the measured signal does not match the configured modu-
lation type.
●
93 ("OCXO Oven Temperature Too Low")
:
The accuracy of measurement results can be impaired because the oven-control-
led crystal oscillator has a too low temperature. After switching-on the instrument,
the OCXO requires a warm-up phase to reach its operating temperature.
●
101 ("Firmware Error")
:
Indicates a firmware or software error. If you encounter this error for the first time,
restart the instrument.
If the error occurs again, consider the following hints:
–
Firmware errors can often be repaired by restoring the factory default settings.
–
If a software package has not been properly installed, this failure is often indi-
cated in the "Setup" dialog, section "SW/HW-Equipment > Installed Software".
–
Check for software updates correcting the error. Updates are provided in the
customer web on GLORIS (registration required):
If you get firmware errors even with the properly installed latest software version,
send a problem report including log files to Rohde & Schwarz.
●
102 ("Unidentified Error")
:
Indicates an error not covered by other reliability values. For troubleshooting, follow
the steps described for "101 (firmware error)".
●
103 ("Parameter Error")
:
Indicates that the measurement could not be performed due to internal conflicting
parameter settings.
A good approach to localize the conflicting settings is to start with a reset or preset
or even restore the factory default settings. Then reconfigure the measurement
step by step and check when the error occurs for the first time.
If you need assistance to localize the conflicting parameter settings, contact Rohde
& Schwarz (see
http://www.service.rohde-schwarz.com
●
104 ("Not Functional")
:
The application could not be started with the configured parameter set.
Command Reference
深圳德标仪器
135-1095-0799
