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: 29.290250
Longitude: -98.255833

Site Elevation:
164.08 meters

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

Height Above Average Terrain:
-163 meters, based on 8 radials.
(rounded from -163.26 m)

HAAT Along Each Radial:

Azimuth HAAT
0-177.3
45-164.79
90-191.55
135-159.05
180-140.16
225-142.7
270-160.15
315-170.38