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: 35.255556
Longitude: -85.226111

Site Elevation:
548.34 meters

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

Height Above Average Terrain:
244 meters, based on 8 radials.
(rounded from 243.66 m)

HAAT Along Each Radial:

Azimuth HAAT
0109.96
45338.63
90399.05
135416.94
180425.72
22577.78
27090.5
31590.69