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: 40.492917
Longitude: -123.200278

Site Elevation:
1337.88 meters

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

Height Above Average Terrain:
-1030 meters, based on 8 radials.
(rounded from -1030.42 m)

HAAT Along Each Radial:

Azimuth HAAT
0-987.62
45-856.4
90-943.85
135-956.12
180-1145.65
225-1176.59
270-1188.05
315-989.11