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: 42.759528
Longitude: -71.476444

Site Elevation:
37.35 meters

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

Height Above Average Terrain:
-74 meters, based on 8 radials.
(rounded from -73.84 m)

HAAT Along Each Radial:

Azimuth HAAT
0-45.2
45-78.61
90-72.78
135-52.84
180-74.89
225-76.01
270-116.54
315-73.88