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: 43.156472
Longitude: -70.940056

Site Elevation:
41.23 meters

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

Height Above Average Terrain:
78 meters, based on 8 radials.
(rounded from 78.01 m)

HAAT Along Each Radial:

Azimuth HAAT
056.8
4585.86
90104.36
135108.24
18099.72
22576.17
27042.47
31550.49