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: 40.617472
Longitude: -105.328028

Site Elevation:
2530.28 meters

Radiation Center Above Mean Sea Level (RCAMSL):
2565 meters

Height Above Average Terrain:
379 meters, based on 8 radials.
(rounded from 378.65 m)

HAAT Along Each Radial:

Azimuth HAAT
0497.21
45611.47
90686.34
135535.35
180368.9
225-17.95
270-62.77
315410.65