HAAT Calculator & Elevation Finder

Calculate elevation and height above average terrain (HAAT) using the FCC's API.

NAD83 Latitude:
- ' " *

NAD83 Longitude:
- ' " *

Radiation Center Height:
meters   *

- Above Mean Sea Level (RCAMSL)
- Above Ground Level (RCAGL)

Number of Radials:

Terrain Database:

Legacy FCC30 terrain is not available through the FCC API. Use the FCC HAAT Calculator instead.

Station Class for ERP Check: (optional)

Decimal Coordinates:
Latitude: 36.561194
Longitude: -83.655778

Site Elevation:
387 meters

Radiation Center Above Mean Sea Level (RCAMSL):
476 meters

Height Above Average Terrain:
-2 meters, based on 8 radials.
(rounded from -1.63 m)

HAAT Along Each Radial:

Azimuth HAAT
020.06
45-13.57
908.16
13530.4
18046.47
22553.9
270-152.06
315-6.41