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: 30.648528
Longitude: -96.389972

Site Elevation:
104.2 meters

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

Height Above Average Terrain:
-89 meters, based on 8 radials.
(rounded from -89.36 m)

HAAT Along Each Radial:

Azimuth HAAT
0-105.91
45-96.17
90-88.25
135-97.24
180-81.33
225-74.24
270-77.26
315-94.49