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: 20.702083
Longitude: -156.362194

Site Elevation:
735 meters

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

Height Above Average Terrain:
148 meters, based on 8 radials.
(rounded from 148.26 m)

HAAT Along Each Radial:

Azimuth HAAT
0506.37
45-228.12
90-1413.61
135-214.27
180282.14
225681.25
270809.76
315762.57