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: 34.912222
Longitude: -117.028333

Site Elevation:
641.78 meters

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

Height Above Average Terrain:
-51 meters, based on 8 radials.
(rounded from -50.83 m)

HAAT Along Each Radial:

Azimuth HAAT
0-220.56
45-100.34
9062.59
135-35.03
180-127.82
225-22.42
27036.01
3150.93