Guide 08: Line-of-Sight Device Alignment — Minimizing Obstruction in the Fresnel Zone

Contrary to popular belief, wireless signals do not travel in an infinitesimally thin laser beam between your router and laptop. Instead, they propagate across an elliptical 3D volume known as the Fresnel Zone.

Clearing the 60% Fresnel Zone Clearance

If solid objects intrude into more than 40% of the Fresnel ellipsoid radius, significant phase cancellation occurs, resulting in severe packet loss and dropped data rates even when the device can still "see" the router.

• Line-of-Sight Checklist: Remove metal filing cabinets, dense bookshelves, and large indoor plants directly along the geometric line of sight.
• Orientation: Face the flat side of internal panel antennas towards the primary working areas of the room.