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: 30.111306
Longitude: -94.052944

Site Elevation:
0.47 meters

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

Height Above Average Terrain:
136 meters, based on 8 radials.
(rounded from 136.32 m)

HAAT Along Each Radial:

Azimuth HAAT
0135.66
45133.89
90136.37
135139.34
180137.47
225136.55
270133.03
315138.27