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: 40.719583
Longitude: -122.980556

Site Elevation:
1203.86 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1210 meters

Height Above Average Terrain:
282.67 meters, based on 8 radials.

HAAT Along Each Radial:

Azimuth HAAT
0-343.63
45368.34
90504.7
135404.29
180437.63
225264.37
270220.87
315404.81