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: 47.889889
Longitude: -91.866528

Site Elevation:
469.31 meters

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

Height Above Average Terrain:
75 meters, based on 8 radials.
(rounded from 74.63 m)

HAAT Along Each Radial:

Azimuth HAAT
071.26
4595.08
9080.37
13571.7
18072.22
22556.99
27076.81
31572.61