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: 45.457556
Longitude: -122.869833

Site Elevation:
212.91 meters

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

Height Above Average Terrain:
-97 meters, based on 8 radials.
(rounded from -96.5 m)

HAAT Along Each Radial:

Azimuth HAAT
0-67.12
45-127.47
90-105.75
135-88.17
180-96.61
225-137.12
270-94.5
315-55.23