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: 42.447806
Longitude: -83.172972

Site Elevation:
201.21 meters

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

Height Above Average Terrain:
294 meters, based on 8 radials.
(rounded from 293.52 m)

HAAT Along Each Radial:

Azimuth HAAT
0279.14
45300.91
90301.27
135298.81
180303.85
225301.01
270292.93
315270.23