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: 45.686389
Longitude: -85.527306

Site Elevation:
203.29 meters

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

Height Above Average Terrain:
49 meters, based on 8 radials.
(rounded from 49.11 m)

HAAT Along Each Radial:

Azimuth HAAT
049.22
4554.29
9054.6
13554.67
18039.33
22537.73
27051.21
31551.83