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: 34.757861
Longitude: -87.501694

Site Elevation:
189.43 meters

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

Height Above Average Terrain:
139 meters, based on 8 radials.
(rounded from 139.07 m)

HAAT Along Each Radial:

Azimuth HAAT
0123.8
45131.53
90140.42
135139.17
180138.08
225146.89
270148.73
315143.96