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: 46.728472
Longitude: -117.007083

Site Elevation:
780.96 meters

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

Height Above Average Terrain:
-844 meters, based on 8 radials.
(rounded from -844.29 m)

HAAT Along Each Radial:

Azimuth HAAT
0-868
45-977.08
90-835.42
135-869.12
180-844.11
225-797.15
270-773.27
315-790.17