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: 40.622778
Longitude: -96.967250

Site Elevation:
411.91 meters

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

Height Above Average Terrain:
-3 meters, based on 8 radials.
(rounded from -2.5 m)

HAAT Along Each Radial:

Azimuth HAAT
0-8.87
4512.17
90-2.44
135-11.1
18017.28
225-7.08
270-14.16
315-5.84