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: 27.867528
Longitude: -97.218889

Site Elevation:
3.39 meters

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

Height Above Average Terrain:
146 meters, based on 8 radials.
(rounded from 146.41 m)

HAAT Along Each Radial:

Azimuth HAAT
0145.35
45143.29
90147.89
135148.1
180148.05
225149
270148.89
315140.72