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: 37.237639
Longitude: -77.414972

Site Elevation:
30.24 meters

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

Height Above Average Terrain:
-40 meters, based on 8 radials.
(rounded from -40.42 m)

HAAT Along Each Radial:

Azimuth HAAT
0-31.5
45-13.73
90-33.32
135-40.61
180-49.73
225-51.54
270-55.79
315-47.14