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: 39.467361
Longitude: -123.760556

Site Elevation:
223.71 meters

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

Height Above Average Terrain:
-101 meters, based on 8 radials.
(rounded from -101.47 m)

HAAT Along Each Radial:

Azimuth HAAT
0-79.21
45-163.22
90-272.62
135-150.24
180-136.3
225-7.32
270-1.42
315-1.4