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: 29.623278
Longitude: -95.552222

Site Elevation:
23.64 meters

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

Height Above Average Terrain:
-21 meters, based on 8 radials.
(rounded from -20.99 m)

HAAT Along Each Radial:

Azimuth HAAT
0-21.58
45-17.2
90-16.86
135-22.46
180-18.95
225-21.28
270-23.99
315-25.6