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: 42.764056
Longitude: -90.405583

Site Elevation:
430.69 meters

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

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

HAAT Along Each Radial:

Azimuth HAAT
0109.02
45123.97
90116.46
135117.78
180138.2
225153.59
270147.61
315132.18