Can fixed wireless internet work in heavily forested areas?

Technical Requirements

Fixed wireless internet relies on a clear line of sight between the user’s antenna and the tower or relay. In heavily forested areas, this can be challenging due to the density of trees. A general rule of thumb is that the tower should be at least 10-15 meters (33-49 feet) above the highest point of the surrounding terrain, and the line of sight should be unobstructed for at least 80% of the distance. In ideal conditions, a 25-meter (82-foot) tower can provide a clear line of sight through a forest with moderate tree density.

Forest Canopy Effects

The forest canopy can have a significant impact on wireless signal propagation. Thicker forests with a higher tree density can absorb or scatter wireless signals, reducing the effective range. To mitigate this, users can employ techniques such as directional antennas or higher-gain equipment. For example, a 24-dB gain antenna can provide a clearer signal through a forest with moderate tree density. Additionally, using a frequency range with a longer wavelength, such as 900 MHz, can help penetrate the forest canopy more effectively.

Choosing the Right Equipment

When setting up fixed wireless internet in a heavily forested area, it’s essential to choose equipment that can handle the challenges of the environment. This may include using more powerful transceivers, higher-gain antennas, or specialized equipment designed for forested areas. For example, a 20-W transceiver can provide a stronger signal through a forest with moderate tree density. It’s also crucial to consider the type of trees and their density, as well as the terrain, to determine the best equipment configuration for the specific location.