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: 40.726806
Longitude: -123.973944

Site Elevation:
811.93 meters

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

Height Above Average Terrain:
452 meters, based on 8 radials.
(rounded from 452.2 m)

HAAT Along Each Radial:

Azimuth HAAT
0534.67
45472.83
90210.01
135122
180426.38
225494.32
270678.33
315679.06