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: 37.511306
Longitude: -120.839361

Site Elevation:
32.95 meters

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

Height Above Average Terrain:
24 meters, based on 8 radials.
(rounded from 23.54 m)

HAAT Along Each Radial:

Azimuth HAAT
020.98
4512.62
905.2
13521.16
18029.23
22535.13
27035.31
31528.71