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: 34.142500
Longitude: -117.722278

Site Elevation:
653.5 meters

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

Height Above Average Terrain:
-13 meters, based on 8 radials.
(rounded from -12.86 m)

HAAT Along Each Radial:

Azimuth HAAT
0-582.03
45-1008.15
90160.72
135334.93
180401
225379.21
270318.54
315-107.13