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: 39.992472
Longitude: -105.154972

Site Elevation:
1706.37 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1732 meters

Height Above Average Terrain:
65 meters, based on 8 radials.
(rounded from 64.69 m)

HAAT Along Each Radial:

Azimuth HAAT
0152.33
45185.51
90141.49
135107.77
18030.42
225-116.17
270-89.4
315105.54