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: 45.620194
Longitude: -109.257917

Site Elevation:
1225.15 meters

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

Height Above Average Terrain:
-1233 meters, based on 8 radials.
(rounded from -1232.56 m)

HAAT Along Each Radial:

Azimuth HAAT
0-1246.4
45-1229.82
90-1154.17
135-1233.89
180-1319.74
225-1238.56
270-1266.24
315-1171.63