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: 46.532889
Longitude: -120.505056

Site Elevation:
573.1 meters

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

Height Above Average Terrain:
272.24 meters, based on 8 radials.

HAAT Along Each Radial:

Azimuth HAAT
0285.41
45197.03
90246.57
135364.46
180361.88
225320.17
270172.15
315230.23