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: 40.581361
Longitude: -104.906083

Site Elevation:
1575.26 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1596 meters

Height Above Average Terrain:
66 meters, based on 8 radials.
(rounded from 65.9 m)

HAAT Along Each Radial:

Azimuth HAAT
0-15.83
4524.04
9071.17
135107.77
180118.27
225105.99
27083.02
31532.78