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: 61.617222
Longitude: -149.012194

Site Elevation:
295.22 meters

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

Height Above Average Terrain:
-58 meters, based on 8 radials.
(rounded from -58.45 m)

HAAT Along Each Radial:

Azimuth HAAT
0-12.93
45-70.39
90-805.99
135-114.11
1807.55
225266.12
270183.78
31578.34