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: 47.769056
Longitude: -90.347056

Site Elevation:
458.49 meters

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

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

HAAT Along Each Radial:

Azimuth HAAT
0-11.25
4531.95
90323.93
135344.6
180344.36
225337.86
27061.35
3155.83