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: 39.556194
Longitude: -76.279667

Site Elevation:
117.05 meters

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

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

HAAT Along Each Radial:

Azimuth HAAT
054.68
4587.78
9054.73
135102.19
180110.03
22559.3
27024.15
31530.84