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: 45.616028
Longitude: -111.088556

Site Elevation:
1578.38 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1644 meters

Height Above Average Terrain:
-43 meters, based on 8 radials.
(rounded from -43.3 m)

HAAT Along Each Radial:

Azimuth HAAT
0201.5
4569.34
90-113.12
135-379.01
180-411.12
2257.71
27082.43
315195.89