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: 35.626278
Longitude: -120.712833

Site Elevation:
417.19 meters

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

Height Above Average Terrain:
102 meters, based on 8 radials.
(rounded from 102.31 m)

HAAT Along Each Radial:

Azimuth HAAT
0183.46
45189.28
90139.82
135131.39
180146.12
22563.94
270-37.83
3152.32