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: 40.402500
Longitude: -94.888028

Site Elevation:
355.96 meters

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

Height Above Average Terrain:
188.29 meters, based on 8 radials.

HAAT Along Each Radial:

Azimuth HAAT
0166.03
45192.71
90188.54
135200.27
180181.84
225187.35
270190.78
315198.8