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: 38.492306
Longitude: -121.255222

Site Elevation:
33.8 meters

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

Height Above Average Terrain:
97 meters, based on 8 radials.
(rounded from 96.56 m)

HAAT Along Each Radial:

Azimuth HAAT
089.4
4563.88
9087.67
13591.34
180107.09
225110.85
270113.55
315108.66