Installation guide

Table Of Contents
49
Cisco uBR7200 Series Universal Broadband Router Wireless Modem Card and Subsystem Installation and Configuration
78-6030-03
Command Reference
Step 7 If the link meets the required thresholds using the high setting, use the high setting for normal
operations.
Expert Procedure to Choose Throughput Setting
These steps help determine the throughput setting by measuring the multipath delay spread and SINR,
then choosing the appropriate throughput setting.
Step 1 Initiate the link using the low throughput setting.
UBR04(config-if) # radio channel-setup bandwidth 12.0 throughput low
Step 2 Measure the multipath delay spread of the channel by examining the channel impulse response using
the radio snapshot command.
Step 3 Measure the SINR of the received signal by examining the constellation variance histogram using the
radio histogram command.
Step 4 Using Table 8 and Table 9, choose the throughput setting that is appropriate for the measured multipath
delay spread and SINR.
Step 5 Clear the link-metrics counters.
UBR04 # clear radio interface radio slot/port link-metrics
Step 6 Test the accuracy of the selected throughput setting by checking the error performance of the link.
UBR04 # show radio interface radio slot/port 1second-metrics delta
UBR04 # show radio interface radio slot/port link-metrics
radio operating-band
Use this command in interface configuration mode to specify the radio operating band and
transmit/receive frequencies within the radio operating band. This command can be entered at any time.
If the link is up when it is entered, the command will take effect with the next shut/no shut. If the link
is down when it is entered, the command will take effect with the next no shut.
Use the no form of the command to reset the operating band to the default values.
Note Use the show running-configuration interface radio slot/port command to display the current
setting.
radio operating-band Tx transmit frequency Rx receive frequency
no radio operating-band
Syntax Description
transmit frequency Positive number in the range 5725.00 MHz to 5825.00 MHz
receive frequency Positive number in the range 5725.00 MHz to 5825.00 MHz