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: 42.393694
Longitude: -72.522028

Site Elevation:
121.37 meters

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

Height Above Average Terrain:
42 meters, based on 8 radials.
(rounded from 41.53 m)

HAAT Along Each Radial:

Azimuth HAAT
044.28
45-92.72
90-67.29
13542.98
18090.3
225130.97
27078.84
315104.89