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: 38.273528
Longitude: -121.504111

Site Elevation:
0.87 meters

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

Height Above Average Terrain:
150 meters, based on 8 radials.
(rounded from 149.8 m)

HAAT Along Each Radial:

Azimuth HAAT
0150.11
45144.95
90146.38
135149.34
180152.39
225153.24
270151.85
315150.11