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: 42.270556
Longitude: -91.539444

Site Elevation:
295.99 meters

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

Height Above Average Terrain:
-289 meters, based on 8 radials.
(rounded from -289 m)

HAAT Along Each Radial:

Azimuth HAAT
0-307.07
45-298.72
90-292.22
135-285.91
180-274.14
225-272.04
270-276.71
315-305.16