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: 42.029694
Longitude: -93.647694

Site Elevation:
289.93 meters

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

Height Above Average Terrain:
56 meters, based on 8 radials.
(rounded from 56.39 m)

HAAT Along Each Radial:

Azimuth HAAT
056.49
4553.83
9066.66
13592.83
18051.55
22543.41
27031.67
31554.7