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: 34.635611
Longitude: -77.928667

Site Elevation:
17.65 meters

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

Height Above Average Terrain:
-12 meters, based on 8 radials.
(rounded from -11.8 m)

HAAT Along Each Radial:

Azimuth HAAT
0-7.88
45-8.86
90-5.95
135-6.63
180-15.46
225-14.8
270-19.42
315-15.4