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: 35.171750
Longitude: -85.316361

Site Elevation:
606.26 meters

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

Height Above Average Terrain:
-405 meters, based on 8 radials.
(rounded from -405.07 m)

HAAT Along Each Radial:

Azimuth HAAT
0-547.82
45-508.69
90-229.06
135-230.11
180-261.68
225-446.1
270-501.77
315-515.32