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: 40.239306
Longitude: -121.032722

Site Elevation:
2275.37 meters

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

Height Above Average Terrain:
-1518 meters, based on 8 radials.
(rounded from -1518.08 m)

HAAT Along Each Radial:

Azimuth HAAT
0-1597.48
45-1596.6
90-1680.46
135-1317.82
180-1533.98
225-1478.39
270-1386.02
315-1553.9