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: 43.858417
Longitude: -70.710889

Site Elevation:
356.53 meters

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

Height Above Average Terrain:
576 meters, based on 8 radials.
(rounded from 576.43 m)

HAAT Along Each Radial:

Azimuth HAAT
0524.22
45587.37
90636.32
135624.09
180605.64
225573.83
270487.72
315572.22