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: 47.933111
Longitude: -124.396028

Site Elevation:
151.99 meters

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

Height Above Average Terrain:
-3 meters, based on 8 radials.
(rounded from -2.6 m)

HAAT Along Each Radial:

Azimuth HAAT
016.48
45-101.53
90-155.83
1357.68
180-14.77
22535.3
270114.33
31577.52