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: 38.718500
Longitude: -120.795472

Site Elevation:
684.43 meters

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

Height Above Average Terrain:
131 meters, based on 8 radials.
(rounded from 131.39 m)

HAAT Along Each Radial:

Azimuth HAAT
073.63
45-77.82
90-51.27
13578.27
180176.24
225272.02
270279.85
315300.22