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: 46.696278
Longitude: -117.246556

Site Elevation:
766.41 meters

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

Height Above Average Terrain:
167 meters, based on 8 radials.
(rounded from 167.14 m)

HAAT Along Each Radial:

Azimuth HAAT
0147
45130.89
90118.18
13586.92
180128.59
225285.33
270244.65
315195.56