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: 44.308306
Longitude: -100.347361

Site Elevation:
543.72 meters

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

Height Above Average Terrain:
111 meters, based on 8 radials.
(rounded from 111.12 m)

HAAT Along Each Radial:

Azimuth HAAT
0125.89
45137.35
90124.08
13582.82
18062.05
22582.59
270147.48
315126.69