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: 64.879833
Longitude: -148.054667

Site Elevation:
550 meters

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

Height Above Average Terrain:
501 meters, based on 8 radials.
(rounded from 501.42 m)

HAAT Along Each Radial:

Azimuth HAAT
0450.53
45467.55
90595.39
135601.69
180536.82
225408.82
270515.53
315435