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: 30.323278
Longitude: -97.799861

Site Elevation:
239.77 meters

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

Height Above Average Terrain:
391 meters, based on 8 radials.
(rounded from 390.78 m)

HAAT Along Each Radial:

Azimuth HAAT
0353.43
45381.86
90420.45
135460.22
180407.3
225338.72
270377.87
315386.35