User Manual

5-39
5 watt base station
Specify a power value from 6 to 31. The maximum system power level is 6, which specifies
+37 dBm (5 watts) at the RF connector. The other power levels are measured in 1 dB steps
from the maximum.
To operate the base station at the 5 watt level, you must install a supplied channel filter.
Example:
set airlink downlink power 10
set airlink downlink bias
This parameter specifies the portion of airtime (slots) available for use on the downlink
relative to the airtime for the uplink. There are always 6 slots available for the uplink.
The higher the bias, the more bandwidth is available for the downlink, due to more time
allocated to the downlink.
Example: set airlink downlink bias 2
You must specify the same downlink bias for all base stations in a cell. Likewise, all base
stations within your system, regardless of the cell they are in, must have the same downlink
bias.
Note: If you are using both 4-QAM only RSUs and AMOD RSUs, do NOT use bias 1.
Table 5.2 Transmit power levels
Power value Power level
6 +37 dBm = 5 watts
.
.
10 +33 dBm = 2.0 watts
.
.
13 +30 dBm = 1.0 watt
.
.
16 +27 dBm = 500 milliwatts
.
.
23 +20 dBm = 100 milliwatts
.
.
31 +12 dBm = 15.8 milliwatts