Line of Sight (LoS)
In the context of telecommunications and residential broadband, Line of Sight (LoS) is a critical factor that determines the feasibility and quality of wireless internet connections. LoS refers to the imaginary straight line between a wireless transmitter (such as a cell tower or a satellite) and a receiver (like a home's antenna or dish) that is free from any physical obstructions.
Key aspects of Line of Sight include:
- Clear path: For optimal wireless broadband performance, the LoS between the transmitter and receiver should be unobstructed by obstacles such as buildings, trees, hills, or mountains. These obstructions can weaken, refract, or block the wireless signals, leading to slower speeds, increased latency, or loss of connection.
- Fresnel zone: In addition to the direct LoS, there is an elliptical area around the LoS called the Fresnel zone. For best performance, this zone should also be largely free from obstructions to minimize signal interference and ensure a strong, reliable connection.
- Wireless technologies: LoS is particularly important for wireless broadband technologies such as fixed wireless, satellite internet, and 5G home internet. These technologies rely on a clear LoS to deliver high-speed internet to homes and businesses in areas where wired connections (like cable or fiber) may not be available or practical.
- Site surveys: Before installing a wireless broadband system, providers typically conduct a site survey to assess the LoS between the proposed transmitter and receiver locations. This helps determine the feasibility of the connection and identify any potential obstacles that may need to be addressed.
When considering a home purchase or evaluating internet options, understanding the concept of Line of Sight can help homeowners and buyers make informed decisions. A property with a clear LoS to nearby wireless transmitters may have access to more reliable and faster wireless broadband options, which can be particularly valuable in rural or remote areas with limited wired infrastructure.
