User's Manual

Deployment & Installation
Trango Broadband Wireless — Atlas5055 page 30
Due to FCC restrictions the professional installer must manually set the maximum power for the 5.25 to 5.35 GHz
and 5.47 to 5.725 GHz U-NII bands based upon which external antenna antenna is being used.
In all cases, EIRP cannot exceed +28 dBm. Antenna Gain + Radio Max Power Setting = 28 - Antenna gain + cable loss.
As an example, if the radio is being installed with a 34 dBi antenna with a 1 dB loss cable, then the radio max U-NII
power must be fixed to –5 dBm. The following chart provides additional details.
Antenna Gain
–cable loss
Maximum Allowed
U-NII Tx Power
26 +2 dBm
30 0 dBm
33 -5 dBm
The Max Power Setting command is only accessible from the command line and is not available on the HTTP Browser
interface.
The telnet command to change the maximum power is:
uniimaxpower <max power in dBm>
The command must be run on each P5055-EXT prior to installing the antenna and while the Opmode is OFF.
Example: To set the max power setting for the 34 dBi antenna use the following command:
#> Uniimaxpower -5
success.
Port Plug and Port Plate (Hardware)
Prior to deployment, insert the silicone port plug around the Cat-5 Cable and insert into the radio’s port opening. Next,
screw the port plate over the silicone plug as shown in the photographs below.