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):
2290 meters

Height Above Average Terrain:
772 meters, based on 8 radials.
(rounded from 771.92 m)

HAAT Along Each Radial:

Azimuth HAAT
0692.52
45693.4
90609.54
135972.18
180756.02
225811.61
270903.98
315736.1