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: 42.865639
Longitude: -70.937528

Site Elevation:
98.53 meters

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

Height Above Average Terrain:
100 meters, based on 8 radials.
(rounded from 99.67 m)

HAAT Along Each Radial:

Azimuth HAAT
098.64
45106.48
90115.58
135119.59
180107.66
22590.89
27075.81
31582.72