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: 41.843361
Longitude: -88.083389

Site Elevation:
228.52 meters

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

Height Above Average Terrain:
92 meters, based on 8 radials.
(rounded from 91.82 m)

HAAT Along Each Radial:

Azimuth HAAT
075.43
4599.27
90103.32
13588.79
180101.54
22595.1
27089.28
31581.85