User guide

45 Mbps Backhaul User Guide
Issue 3, December 2004 Page 100 of 113
11.6 Regulatory Issues
In countries where FCC regulations are not relevant, installations should conform to any applicable local
regulations for the Equivalent Isotropic Radiated Power (EIRP).
Products deployed in North America or where FCC Part 15 regulations are used for unlicensed radio
equipments, the sections 11.6.1and 11.6.2 apply.
11.6.1 Antenna Choice
The antennas allowed to be deployed with the connectorized 45 Mbps Backhaul are shown in Table 11.
11.6.2 Cable Losses
The FCC approval for the product is based on tests with a cable loss between the units of 1.2dB at 5.8GHz. The
use of lower cable losses would result in the installation being outside the FCC rules.
As an indication, 1.2dB of cable loss corresponds to the following cable lengths excluding connector losses
(source: Times Microwave).
Length for 1.2dB Cable Loss at 5.8GHz
Cable
(ft)
(m)
LMR100
1.9
0.6
LMR200
4.6
1.4
LMR300
7.25
2.2
LMR400
11.1
3.4
Table 10 Cable Losses per Length