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: 18.280556
Longitude: -65.670278

Site Elevation:
276.65 meters

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

Height Above Average Terrain:
930 meters, based on 8 radials.
(rounded from 929.55 m)

HAAT Along Each Radial:

Azimuth HAAT
0290
45307.36
90312.52
1355994.96
180284.05
225267.3
270-220.52
315200.72