Line Of Sight Analysis - Nokia RoofTop R240 User Manual

Site survey steps

3.1.1 Line of sight analysis

3.1.1.1 Introduction
In order for the Nokia Wireless Router network to operate correctly, there
must be line of sight paths for each link.
Determine that there is a visual line of sight and a radio line of sight
between the router to be installed and its neighboring routers.
It is recommended that each router has a line of sight to at least 2 other
routers to enable several options to route internet traffic to the airhead.
Line of Sight and Fresnel Zone - Illustration
Visual line of sight
Visual line of sight exists when an imaginary straight line can be drawn
between two antennas without passing through any physical obstructions.
Verifying visual line of sight is the first step in planning the Nokia
Wireless Router System installation. Observation points must be high
enough to allow the viewer to see over ground based obstructions.
Nokia RoofTop™ Wireless Router Installation Guide 21