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: 41.532806
Longitude: -88.098389

Site Elevation:
197.1 meters

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

Height Above Average Terrain:
38 meters, based on 8 radials.
(rounded from 37.58 m)

HAAT Along Each Radial:

Azimuth HAAT
032.03
4517.8
9029.58
13530.69
18041.14
22563.71
27042.04
31543.64