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: 37.329139
Longitude: -121.717528

Site Elevation:
506.63 meters

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

Height Above Average Terrain:
49 meters, based on 8 radials.
(rounded from 49.12 m)

HAAT Along Each Radial:

Azimuth HAAT
0-172.35
45-264.02
90-325.39
135-31.54
180200.2
225422.35
270460.53
315103.18