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: 35.446083
Longitude: -120.881556

Site Elevation:
163.14 meters

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

Height Above Average Terrain:
23 meters, based on 8 radials.
(rounded from 22.77 m)

HAAT Along Each Radial:

Azimuth HAAT
0-200.72
45-125.39
90-176.64
13568.35
180183
225183
270183
31567.54