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: 38.641556
Longitude: -121.091333

Site Elevation:
238.72 meters

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

Height Above Average Terrain:
109 meters, based on 8 radials.
(rounded from 108.67 m)

HAAT Along Each Radial:

Azimuth HAAT
081.54
45-84.81
90-49.03
13583.41
180198.77
225214.79
270232.88
315191.78