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: 33.999556
Longitude: -118.466194

Site Elevation:
7.51 meters

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

Height Above Average Terrain:
-39 meters, based on 8 radials.
(rounded from -38.72 m)

HAAT Along Each Radial:

Azimuth HAAT
0-194.16
45-31.63
90-24.52
1355.6
18031
22531
27031
315-158.07