The antennas that we use do transmit and receive radio waves, like all radios.
Ultimately, your exposure to any radio is dependent on:
- the frequency of the radio waves
- the power of the radios
- and your distance to the source (the further away, the less exposure).
From a frequency perspective, we are using radios in the 5 GHz and 60 Ghz range on customer rooftops. For context, WiFi that people use in their homes operates in the 5 Ghz or in the 2.4 GHz range. The antennas we are using are FCC-approved and similar to the 5 GHz radios in your WiFi router, laptop, cell phone, or iPad.
From a power perspective, per FCC guidelines at the 5 GHz range, our radios transmit at no more than 1 Watt of power. To put this in context, the total transmit power for our antennas is 5-10 times less than your cell phone.
From a distance perspective, of course our antennas are mounted on rooftops and not inside the home. Instead of having those radio waves transmit widely to blanket your house to connect devices in different rooms, the signals from our rooftop equipment are pointed directly at radios on other rooftops. The technology requires line of sight, which means we need unobstructed connections from radio to radio. So by design, the radio waves need to be pointed only through the air to other radios, and away from any physical obstructions, including of course, people or other houses. This differs from "cell towers" which are designed to broadcast its signal widely in the area it serves.
So the best analogy for our service is that we’ve simply put a home wi-fi router onto your roof.
Here are a few useful websites if you want to learn more: