NB-IoT Signaling
R&S
®
CMW-KM300/-KS300
47
User Manual 1178.5689.02 ─ 06
Remote command:
CONFigure:NIOT:SIGN<i>:RFSettings:EATTenuation:OUTPut<n>
External Delay Compensation ← RF Output (TX)
Defines the value of an external time delay in the output path. A delay can, for exam-
ple, be caused by a long optical fiber cable or by an additional instrument in the output
path.
As a result, the downlink signal is sent earlier, so that the downlink signal arrives at the
UE without delay.
Remote command:
CONFigure:NIOT:SIGN<i>:RFSettings:EDC:OUTPut
RF Input (RX)
The following parameters configure the RF input path of the R&S
CMW.
Connector, Converter ← RF Input (RX)
Selects the input path for the measured RF signal, i.e. the input connector and the RX
module to be used.
Remote command:
ROUTe:NIOT:SIGN<i>:SCENario[:FLEXible]:SCELl
External Attenuation ← RF Input (RX)
Defines the value of an external attenuation (or gain, if the value is negative) in the
input path. The power readings are corrected by the external attenuation value.
The external attenuation value is also used in the calculation of the maximum configu-
rable input power value.
If a correction table for frequency-dependent attenuation is active for the chosen con-
nector, then the table name and a button are displayed. Press the button to display the
table entries.
Remote command:
CONFigure:NIOT:SIGN<i>:RFSettings:EATTenuation:INPut
External Delay Compensation ← RF Input (RX)
Defines the value of an external time delay in the input path, for example caused by a
long optical fiber cable.
The signaling application uses this information to compensate for the delay and to syn-
chronize the uplink and the downlink despite the delay.
Remote command:
CONFigure:NIOT:SIGN<i>:RFSettings:EDC:INPut
2.3.5.2
RF Frequency
Access: "Config" hotkey > "RF Settings" > "RF Frequency" section.
This section configures the operating band and the channel/frequency for uplink and
downlink.
GUI Reference
深圳德标仪器
135-1095-0799