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: 42.300750
Longitude: -83.641056

Site Elevation:
262.97 meters

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

Height Above Average Terrain:
122 meters, based on 8 radials.
(rounded from 122.3 m)

HAAT Along Each Radial:

Azimuth HAAT
091.53
45112.81
90153.86
135152.73
180141.57
225127.77
270104.7
31593.43