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: 35.827500
Longitude: -90.684000

Site Elevation:
87.9 meters

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

Height Above Average Terrain:
28 meters, based on 8 radials.
(rounded from 28 m)

HAAT Along Each Radial:

Azimuth HAAT
05.83
4528.3
9043.65
13545.13
18028.65
22529.21
27022.08
31521.13