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: 42.710056
Longitude: -73.202861

Site Elevation:
201.66 meters

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

Height Above Average Terrain:
-252 meters, based on 8 radials.
(rounded from -251.87 m)

HAAT Along Each Radial:

Azimuth HAAT
0-119.14
45-424.12
90-247.14
135-226.42
180-335.93
225-268.15
270-211.88
315-182.16