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: 34.113889
Longitude: -117.998111

Site Elevation:
108.53 meters

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

Height Above Average Terrain:
-100 meters, based on 8 radials.
(rounded from -99.58 m)

HAAT Along Each Radial:

Azimuth HAAT
0-568.01
45-304.52
9023.69
13564.39
18043.91
225122.2
27054.88
315-233.22