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: 44.817722
Longitude: -107.903139

Site Elevation:
3021.76 meters

Radiation Center Above Mean Sea Level (RCAMSL):
3031 meters

Height Above Average Terrain:
724 meters, based on 8 radials.
(rounded from 724.48 m)

HAAT Along Each Radial:

Azimuth HAAT
0472.18
45357.16
90305.55
135348.29
1801147.46
2251341.53
2701171.1
315652.57