All equipment used by Sail Internet complies with FCC regulations and all applicable standards related to electromagnetic radiation. In fact, the methods used by Sail Internet to deploy wireless connections result in radiation levels much lower than many household electronic devices. Here is why:
There are two types of wireless connections used by Sail Internet:
- Point-to-point wireless links. These are used to connect large buildings like condominium and apartment complexes, and to also connect hub homes where Sail Internet access points are installed. Such point-to-point links use highly directional antennas and typically require alignment within a few degrees. This means that the electromagnetic transmission is focused along a "pencil beam" well above roof-level. Transmitted power levels are required to be very low, and there is no health risk even in the hypothetical but very unlikely case of someone standing in front of the beam. It is nearly impossible to detect transmitted power even a few feet away from the beam.
- Point-to-multipoint wireless links. These are used to connect Sail Internet access points to customer radios on roofs of single-family home. This wireless technology is based on existing standards previously used for indoor WiFi, but is using improved antennas and hardened hardware for operating outdoors. As opposed to indoor WiFi, the antennas are highly directional and are aimed at roof-level to achieve the best performance. These wireless signals are weakened and deflected by walls and windows to a degree that they become hard to detect indoors. In contrast to cellular wireless, point-to-multipoint wireless links by Sail Internet require very low amounts of power to be transmitted. That is because Sail Internet installs access points much more densely than traditional cell towers, which shortens the distance between transmitters and receivers.
According to Sail Internet calculations, electromagnetic radiation inside a home from Sail Internet equipment is typically at least 1000 times weaker than radiation from common electronic devices such as WiFi routers and smartphones.