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: 40.813056
Longitude: -96.706972

Site Elevation:
356.66 meters

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

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

HAAT Along Each Radial:

Azimuth HAAT
034.87
4559.64
9028.4
135-1.78
18035.62
22523.81
27034.12
31533.35