Installation Guide

Hardware Installation Guide Radio Site Planning
02030311-08 Airspan Networks Inc. 5-9
To adhere to Effective Isotropic Radiated Power (EIRP) limitations in the regulatory
domain (country) in which you are operating your ASWipLL system, when
purchasing antenna cables, take into consideration cable loss per cable length. EIRP
is calculated using cable loss (i.e. EIRP = max. transmitter power output + antenna
gain - cable loss). For example, FCC regulations state that when operating in
unlicensed bands, the external antennas must provide an EIRP of less than or equal
to 36 dBm to prevent interference with other radios. Thus, knowing this EIRP
parameter, you can choose the cable that ensures adherence to this parameter value.
The table below lists examples of cable loss per cable length.
Table 5-1: Examples of cable loss per cable length
Note: Airspan does not supply external antenna cables. It is the responsibility
of the installer to provide the cable and ensure the cable characteristics (e.g.
length and cable loss) enables adherence to EIRP regulations of the country or
area in which the ASWipLL system is operating.