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: 35.793472
Longitude: -80.853972

Site Elevation:
267.25 meters

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

Height Above Average Terrain:
53 meters, based on 8 radials.
(rounded from 53.12 m)

HAAT Along Each Radial:

Azimuth HAAT
054.17
4572.05
9065.44
13569.21
18051.84
22539.52
27026.94
31545.8