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: 35.068500
Longitude: -78.902250

Site Elevation:
42.11 meters

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

Height Above Average Terrain:
94 meters, based on 8 radials.
(rounded from 93.51 m)

HAAT Along Each Radial:

Azimuth HAAT
077.61
45111.12
90108.16
135117.46
18095.3
22588.75
27074.52
31575.18