Installation guide

51
Cisco uBR7200 Series Universal Broadband Router Wireless Modem Card and Subsystem Installation and Configuration
78-6030-03
Command Reference
radio cable-loss
Use this command in interface configuration mode to enter the effective cable loss (measured in dB at
400 MHz) of the cable between the wireless modem card and the specified wireless transverter, including
the power feed panel, connectors, and lightning protection. Use the no version of the command to
remove the setting.
Table 11 gives an example of estimated cable, connector, and equipment loss for a typical installation.
Note The cable loss parameter cannot be set to a value greater than 12 dB. The exact cable loss value is
determined by the transverter. The system checks against that value when a no shut command is
entered.
Note Use the show running-configuration interface radio slot number/port number command to display
the current setting.
radio cable-loss antenna_num positive number
no radio cable-loss
Syntax Description
Table 11 Estimated Cable Loss Between Wireless Modem Card
and Transverter
Wireless Modem Card to
Power Feed Panel
Power Feed Panel to
Primary Lightning
Suppression
Primary Lightning
Suppression to Transverter
Cable length 4 feet 250 feet 50 feet
Cable type RG-142 LMR-400 LMR-400
Loss per
100 feet
8 dB @ 400 MHz 2.7 dB @ 400 MHz 2.7 dB @ 400 MHz
Connectors 2 2 2
Loss per
connector
.25 dB .25 dB .25 dB
Equipment loss 0.5 dB
(power feed panel)
0.2 dB
(Lightning suppression)
—
Loss per
segment
1.32 dB 7.45 dB 1.85 dB
Total Loss = 10.62 dB
antenna_num Enter 1 (main antenna) or 2 (diversity antenna).
positive number Positive number (less than or equal to 12 dB), reflecting effective cable loss.