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: 41.558111
Longitude: -85.851667

Site Elevation:
255.69 meters

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

Height Above Average Terrain:
87 meters, based on 8 radials.
(rounded from 87.07 m)

HAAT Along Each Radial:

Azimuth HAAT
094.82
4581.31
9077.91
13589.52
18093.03
22578.16
27082.59
31599.2