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: 35.122194
Longitude: -118.207861

Site Elevation:
1043.17 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1113 meters

Height Above Average Terrain:
-31 meters, based on 8 radials.
(rounded from -31.42 m)

HAAT Along Each Radial:

Azimuth HAAT
0-312.52
4542.17
90270.04
135267.89
180210.83
225-39.49
270-226.57
315-463.68