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: 42.137139
Longitude: -87.982556

Site Elevation:
215.41 meters

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

Height Above Average Terrain:
111 meters, based on 8 radials.
(rounded from 111.43 m)

HAAT Along Each Radial:

Azimuth HAAT
0113.01
45128.16
90131.5
135134.58
180116.95
225100.7
27083.06
31583.44