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: 38.535167
Longitude: -121.751056

Site Elevation:
15.72 meters

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

Height Above Average Terrain:
41.67 meters, based on 8 radials.

HAAT Along Each Radial:

Azimuth HAAT
041.82
4549.14
9050.15
13549.35
18044.31
22535.85
27029.17
31533.59