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: 43.214722
Longitude: -71.573889

Site Elevation:
196.12 meters

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

Height Above Average Terrain:
101 meters, based on 8 radials.
(rounded from 101.13 m)

HAAT Along Each Radial:

Azimuth HAAT
0108.05
45107.2
9091.15
135158.27
18080.78
22595.42
27082.77
31585.38