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: 33.681500
Longitude: -85.815806

Site Elevation:
451.65 meters

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

Height Above Average Terrain:
218 meters, based on 8 radials.
(rounded from 217.61 m)

HAAT Along Each Radial:

Azimuth HAAT
0268.07
45160.1
90158.75
135213.72
180240.24
225190.48
270232.03
315277.45