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: 27.421694
Longitude: -80.356139

Site Elevation:
4.34 meters

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

Height Above Average Terrain:
133 meters, based on 8 radials.
(rounded from 133.32 m)

HAAT Along Each Radial:

Azimuth HAAT
0132.88
45136.35
90136.35
135134.17
180132.66
225131.52
270131.41
315131.24