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: 37.512639
Longitude: -77.601389

Site Elevation:
106.37 meters

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

Height Above Average Terrain:
300 meters, based on 8 radials.
(rounded from 299.79 m)

HAAT Along Each Radial:

Azimuth HAAT
0305.57
45301.15
90315.11
135307.7
180298.19
225297.72
270264.54
315308.32