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: 45.745528
Longitude: -87.054306

Site Elevation:
181.37 meters

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

Height Above Average Terrain:
55 meters, based on 8 radials.
(rounded from 54.5 m)

HAAT Along Each Radial:

Azimuth HAAT
044.68
4560.57
9061.72
13568.79
18069.02
22565.2
27038.73
31527.3