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: 39.342028
Longitude: -76.586611

Site Elevation:
79.89 meters

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

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

HAAT Along Each Radial:

Azimuth HAAT
041.39
4555.68
90113.35
135130.57
180130.22
22595.89
27022.48
31519.36