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: 42.832861
Longitude: -71.728667

Site Elevation:
200.83 meters

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

Height Above Average Terrain:
9 meters, based on 8 radials.
(rounded from 9.23 m)

HAAT Along Each Radial:

Azimuth HAAT
03
4565.35
90124.58
13561.16
18014.62
225-52.01
270-124.13
315-18.74