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: 36.396611
Longitude: -121.874667

Site Elevation:
366.11 meters

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

Height Above Average Terrain:
92 meters, based on 8 radials.
(rounded from 91.82 m)

HAAT Along Each Radial:

Azimuth HAAT
0-19.65
45-66.67
90-444.85
135-159.81
180259.04
225391.1
270399
315376.38