User's Manual

obr5000b_ml_r01_sd Approved: D.W.
3-7
3.5 Configuring the Radio
CAUTION
The installer must ensure that the transmission power output is below the mandated FCC limit. That is,
the transmission power minus the cable loss and antenna gain must result in an equivalent isotropically
radiated power (EIRP) below 4W or 36dBm. When using Vecima or Vecima recommended antennas, the
transmit power output will be below this limit.
To configure the radio
Step 1 Log on to the Web-based interface and click Configuration > Radio Configuration. The following page
displays:
You can set the following parameters for the base station radio from this page:
Parameter Description Procedure Default
GPS Status Enable GPS to use GPS
synchronized base stations.
Click the drop down arrow and
select Enabled or Disabled
Disabled
Fixed Downlink
Allocation
This is the percentage of the
TDD frame that is dedicated to
Downlink data
Click the drop down arrow for
the Fixed Downlink Allocation
and select the value for the
location
50%
Downlink/Uplink
center frequency
This is the channel center
frequency in KHz
Enter the value into the blank
field.
Customer specific
Frame Duration The combined Downlink and
Uplink frame length in
milliseconds
Click the drop-down menu
arrow and select the duration
10.0 ms
Cyclic Prefix The redundant symbol
percentage used to counteract
inter-symbol interference
Click the drop-down menu
arrow and select the prefix
1/4
Channel Bandwidth 10000 kHz Click the drop-down menu
arrow and select the bandwidth
10000 kHz
Transmit power The output power level of the
Downlink in dBm
Enter the value into the blank
field
18.0 dBm
Transmit Antenna
Gain
The gain measured in dBi
provided by the antenna.
Type the value in the field
provided.
N/a