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: 40.120139
Longitude: -123.693083

Site Elevation:
1183.48 meters

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

Height Above Average Terrain:
-437 meters, based on 8 radials.
(rounded from -437.31 m)

HAAT Along Each Radial:

Azimuth HAAT
0-579.04
45-333.3
90-465.68
135-522.85
180-498.11
225-347.61
270-333.54
315-418.32