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: 42.797556
Longitude: -77.820000

Site Elevation:
222.77 meters

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

Height Above Average Terrain:
2 meters, based on 8 radials.
(rounded from 1.88 m)

HAAT Along Each Radial:

Azimuth HAAT
075.42
453.62
90-56.09
135-66.18
18043.37
22536.36
270-32.97
31511.55