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: 44.046778
Longitude: -121.531694

Site Elevation:
1784.85 meters

Radiation Center Above Mean Sea Level (RCAMSL):
1827 meters

Height Above Average Terrain:
261 meters, based on 8 radials.
(rounded from 261.35 m)

HAAT Along Each Radial:

Azimuth HAAT
0423.21
45594.28
90564.56
135461.88
180187.79
22522.88
270-81.25
315-82.55