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: 38.562667
Longitude: -121.542167

Site Elevation:
3.85 meters

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

Height Above Average Terrain:
52 meters, based on 8 radials.
(rounded from 52.16 m)

HAAT Along Each Radial:

Azimuth HAAT
052.74
4548.54
9048.3
13552.04
18056.21
22553.99
27051.77
31553.66