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: 42.294250
Longitude: -73.217028

Site Elevation:
400.35 meters

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

Height Above Average Terrain:
13 meters, based on 8 radials.
(rounded from 13.47 m)

HAAT Along Each Radial:

Azimuth HAAT
0-16.81
45-99.48
90-56.02
135-47.55
18031.19
22574.59
270138.83
31582.99