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: 38.336000
Longitude: -122.536361

Site Elevation:
270.19 meters

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

Height Above Average Terrain:
-204 meters, based on 8 radials.
(rounded from -204.15 m)

HAAT Along Each Radial:

Azimuth HAAT
0-287.25
45-284.55
90-248.33
135-23.21
180-158.22
225-161.03
270-211.92
315-258.66