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: 44.066639
Longitude: -107.864528

Site Elevation:
1420.41 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1435 meters

Height Above Average Terrain:
119 meters, based on 8 radials.
(rounded from 118.75 m)

HAAT Along Each Radial:

Azimuth HAAT
0120.32
4586.48
9060.24
13556.54
180110.77
225185.81
270151.7
315178.1