Filter
Top Products
Multipoint Wireless Support for the Cisco uBR7200 Series Universal Broadband Router
radio cable-loss
38
Cisco IOS Release 12.1(5)XM
Usage Guidelines The following table provides an example of estimated cable, connector, and equipment loss for a typical
installation.
Examples In the following example, the headend Tx cable loss was measured to be 11 dB, and the headend Rx
cable-loss was measured to be 12 dB:
UBR04(config-if)# radio cable-loss 1 11 12
Headend ODU Tx Attenuation Setting = 15 dB - 11 dB = 4 dB
Headend IDU Tx Attenuation Setting = 13 dB - 12 dB = 1 dB
Related Commands
Table 1 Estimated Cable Loss Between Wireless Modem Card and Transverter
Item
Wireless Modem Card to Power
Feed Panel
Power Feed Panel to Primary
Lightning Supression
Primary Lightning Suppresion
to Transverter
Cable length (feet) 4 250 50
Cable type RG 142 LMR400 LMR400
Loss per 100 feet
(decibel)
8 dB at 400 MHz 2.7 dB at 400 MHz 2.7 dB at 400 MHz
Connectors 2 2 2
Loss per connector .25 dB .25 dB .25 dB
Equipment loss 1.2 dB (power feed panel) 0.2 dB (Lightning Supression) --
Loss per segment
(decibel)
2.02 dB 7.45 dB 1.85 dB
Total loss = 11.32 dB
Command Description
show
running-configuration
interface radio
Displays the current configuration settings, including cable loss.