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: 36.355778
Longitude: -120.462361

Site Elevation:
673.95 meters

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

Height Above Average Terrain:
104 meters, based on 8 radials.
(rounded from 103.79 m)

HAAT Along Each Radial:

Azimuth HAAT
0379.86
45503.54
90444.47
135-37.8
180-12.78
225-167.12
270-415.5
315135.64