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: 34.097861
Longitude: -77.971444

Site Elevation:
7.34 meters

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

Height Above Average Terrain:
-5 meters, based on 8 radials.
(rounded from -5.25 m)

HAAT Along Each Radial:

Azimuth HAAT
0-1.52
45-5.34
90-1.64
135-1.09
180-4.9
225-9.75
270-12.71
315-5.02