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: 40.011917
Longitude: -105.188333

Site Elevation:
1624.6 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1655 meters

Height Above Average Terrain:
-27 meters, based on 8 radials.
(rounded from -27.46 m)

HAAT Along Each Radial:

Azimuth HAAT
091.29
45107.51
9066.17
13514.59
180-95.27
225-209.37
270-122.75
315-71.82