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: 42.904444
Longitude: -89.555944

Site Elevation:
287.58 meters

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

Height Above Average Terrain:
103 meters, based on 8 radials.
(rounded from 103.37 m)

HAAT Along Each Radial:

Azimuth HAAT
097.17
4596.73
90105.27
135124.05
180115.78
225103.39
27099.99
31584.6