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: 33.906528
Longitude: -98.681556

Site Elevation:
301.76 meters

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

Height Above Average Terrain:
109 meters, based on 8 radials.
(rounded from 109.4 m)

HAAT Along Each Radial:

Azimuth HAAT
095.72
45113.32
90126.3
135112.59
180105.59
225108.5
270111.87
315101.29