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: 44.007000
Longitude: -73.177333

Site Elevation:
125.38 meters

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

Height Above Average Terrain:
-11 meters, based on 8 radials.
(rounded from -11.22 m)

HAAT Along Each Radial:

Azimuth HAAT
055.08
45-111.67
90-210.97
135-96.27
18054.94
22561.9
27083.95
31573.27