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: 39.555778
Longitude: -107.338639

Site Elevation:
1747.65 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1757 meters

Height Above Average Terrain:
-645 meters, based on 8 radials.
(rounded from -645.49 m)

HAAT Along Each Radial:

Azimuth HAAT
0-1308.19
45-964.7
90-561.06
135-353.49
180-585.54
225-586.85
270-229.17
315-574.94