Screenshots
About
Every other antenna app draws circles on a map, as if the earth were flat and empty. Overair works out which broadcast television stations actually reach your address in the United States by running the Longley-Rice Irregular Terrain Model, the same propagation model behind the FCC's own coverage studies, over the real ground between your roof and every tower. Tap a station and it draws that ground as a landscape: the radio path arcs across it, the zone around the path is shaded, and the one hill that decides this channel is picked out and measured. Clears by 41 metres, or blocked by 171. The list shows what arrives, strongest first, with the call sign, the RF channel and its band, the bearing, the distance and the margin in decibels, and stations that share one channel from one tower are grouped as the single signal your aerial receives rather than repeated as identical rows. A compass rose plots every station by direction, so you can see whether one fixed aerial collects the lot and which way to point it. And because where you put an aerial is worth far more signal than how tall the mast is, Overair answers your address five times over, once each for a back room, a window, the attic, an omnidirectional aerial on the roof and an aimed one, and tells you what going outside is actually worth. A 30 arc-second elevation map of the continental United States and 4,210 licensed transmitters travel inside the app, so it works in a basement or on a plot of land with no service. There is no account, no server and no tracking of any kind.
Features
- The real ground between your roof and every tower, not a circle on a map
- The Longley-Rice model the FCC's own coverage studies use
- A terrain cross-section naming the one hill that blocks a channel
- Every licensed digital transmitter: full power, Class A and low power
- Stations sharing a channel grouped as the one signal you receive
- A compass rose showing whether one aerial direction gets them all
- Indoor, attic and rooftop mounting compared at your own address
- Entirely on device: no account, no server, no network request