LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
125
User Manual 1173.9628.02 ─ 16
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.
You can configure the external attenuation per output path.
Remote command:
External Delay Compensation ← RF Output (TX)
Defines the value of an external time delay in the output path, for example caused by a
very 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:
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.
Depending on your hardware configuration there may be dependencies between both
parameters. Select the RF connector first. The "Converter" parameter offers only val-
ues compatible with the selected RF connector.
Remote command:
Depends on the scenario, see
chapter 2.6.8.1, "Signal Routing"
Example:
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 of the R&S
CMW are corrected by the external attenu-
ation value.
The external attenuation value is also used in the calculation of the maximum input
power that the R&S
CMW can measure.
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:
External Delay Compensation ← RF Input (RX)
Defines the value of an external time delay in the input path, for example caused by a
very long optical fiber cable.
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