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: 38.336111
Longitude: -122.535278

Site Elevation:
245.29 meters

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

Height Above Average Terrain:
78 meters, based on 8 radials.
(rounded from 77.65 m)

HAAT Along Each Radial:

Azimuth HAAT
0-11.93
45-1.85
9034.93
135261.05
180127.18
225120.95
27066.02
31524.83