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: 45.524722
Longitude: -122.294333

Site Elevation:
211.81 meters

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

Height Above Average Terrain:
12 meters, based on 8 radials.
(rounded from 11.63 m)

HAAT Along Each Radial:

Azimuth HAAT
043.82
45-10.58
90-309.08
135-88.83
18044.49
22567.08
270140.71
315205.42