Installation guide

45
Cisco uBR7200 Series Universal Broadband Router Wireless Modem Card and Subsystem Installation and Configuration
78-6030-03
Command Reference
Note Use the show running-configuration interface radio slot/port command to display the current
setting.
radio receive-antennas {1 | 2}
no radio receive-antennas
Example
The following example configures the wireless modem card to use two receive antennas:
UBR04(config-if)# radio receive-antennas 2
radio master
Use this command in interface configuration mode to configure the wireless modem card to operate as
the master radio. The master radio acts as the frequency source; the radio designated as the slave will
track to the changes in the master’s frequency. The default value is slave mode.
Note One end of the link (either end) must be designated as “master.” Otherwise, unpredictable results can
occur.
Use the external clock-reference option to specify that a 10-MHz external clock reference is being
used. In slave mode, the default is automatically set to internal clock reference.
Note The attached external clock reference must be exactly 10 MHz for the link to function properly.
This command can be entered only when the radio link is down (shut), and will take effect only when
the link is again active (no shut). Use the no version of the command to switch the modem card from
master to slave mode.
Note The center frequency of both master and slave must be configured using the appropriate operating
band and channel parameters commands.
Note Use the show running-configuration interface radio slot/port command to display the current
setting.
radio master [external-clock-reference]
no radio master
Example
The following example configures the wireless modem card to operate as the master radio with internal
clock reference:
UBR04(config-if)# radio master