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: 42.137250
Longitude: -87.982583

Site Elevation:
215.24 meters

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

Height Above Average Terrain:
111 meters, based on 8 radials.
(rounded from 111.33 m)

HAAT Along Each Radial:

Azimuth HAAT
0113.01
45128.03
90131.38
135134.46
180116.86
225100.56
27083
31583.31