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: 61.621139
Longitude: -149.023333

Site Elevation:
248.77 meters

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

Height Above Average Terrain:
-56 meters, based on 8 radials.
(rounded from -56.24 m)

HAAT Along Each Radial:

Azimuth HAAT
0-36.4
457.2
90-789.47
135-121.3
18053.42
225238.49
270153.64
31544.47