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: 42.490778
Longitude: -94.200500

Site Elevation:
341.63 meters

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

Height Above Average Terrain:
39 meters, based on 8 radials.
(rounded from 39.01 m)

HAAT Along Each Radial:

Azimuth HAAT
047.73
4536.78
9041.1
13558.16
18033.09
22531.61
27028.28
31535.32