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: 37.359444
Longitude: -89.621111

Site Elevation:
154.16 meters

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

Height Above Average Terrain:
90 meters, based on 8 radials.
(rounded from 89.72 m)

HAAT Along Each Radial:

Azimuth HAAT
061.86
4555.56
9092.39
135114.05
180108.34
225105.18
27098.48
31581.91