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: 34.737028
Longitude: -86.529167

Site Elevation:
483.51 meters

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

Height Above Average Terrain:
319.8 meters, based on 8 radials.

HAAT Along Each Radial:

Azimuth HAAT
0330.67
45305.61
90312.35
135311.65
180273.85
225363.29
270351.16
315309.84