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: 41.352861
Longitude: -74.795417

Site Elevation:
303.07 meters

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

Height Above Average Terrain:
-40 meters, based on 8 radials.
(rounded from -39.98 m)

HAAT Along Each Radial:

Azimuth HAAT
0-72.95
45-63.43
9025.43
135-21.91
18073.57
225-42.53
270-113.86
315-104.14