Deployment Considerations; Link Budget; Regulatory Issues - Motorola Canopy 300 Mbps Backhaul User Manual

Figure 99: Canopy 150/300 Mb BH-C 'Disarm Installation' Page

14.4 Deployment Considerations

The majority of radio links can be successfully deployed with the Canopy 150/300 Mb BH
product. It should only be necessary to use external antennas where the Link Budget
Calculator indicates marginal performance for a specific link. Examples of this would be
where the link is heavily obscured by dense woodland on an NLOS link or extremely long
LOS links (>80km) over water.
The external antennas can be either dual-polarization (as the integrated antenna) or two
single polarized antennas can be used in a spatially diverse configuration. It is expected that
the dual-polarization antennas would normally be used to simplify the installation process;
spatially diverse antennas may provide additional fade margin on very long LOS links where
there is evidence of correlation of the fading characteristics on Vertical and Horizontal
polarizations.
Dual polarization antennas (with a gain greater than the integrated antenna) are currently only
available in parabolic dish form.

14.5 Link Budget

An estimate of the link budget for a specific application can be obtained by using the Motorola
link estimation tools. For more information see the Motorola website.

14.6 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).
Issue 1.1 April 2006 Page 142