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: 38.710444
Longitude: -121.482722

Site Elevation:
9.14 meters

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

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

HAAT Along Each Radial:

Azimuth HAAT
0141.28
45129.25
90120.94
135135.25
180148.12
225149.02
270148.11
315148.6