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: 61.422222
Longitude: -149.874444

Site Elevation:
39.51 meters

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

Height Above Average Terrain:
186 meters, based on 8 radials.
(rounded from 186.42 m)

HAAT Along Each Radial:

Azimuth HAAT
0172.72
45151.23
90212.53
135204.44
180217.33
225184.87
270179.85
315168.37