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: 42.254778
Longitude: -77.786639

Site Elevation:
559.96 meters

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

Height Above Average Terrain:
-7 meters, based on 8 radials.
(rounded from -7.46 m)

HAAT Along Each Radial:

Azimuth HAAT
033.66
4590.09
9056.77
135-59.9
180-39.95
225-87.9
270-16.72
315-35.7