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: 37.793333
Longitude: -122.414167

Site Elevation:
105.98 meters

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

Height Above Average Terrain:
148 meters, based on 8 radials.
(rounded from 147.5 m)

HAAT Along Each Radial:

Azimuth HAAT
0171
45166.63
90166.86
135170.8
180111.46
225109.27
270154.08
315129.88