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: 44.458611
Longitude: -71.173583

Site Elevation:
445.56 meters

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

Height Above Average Terrain:
1 meters, based on 8 radials.
(rounded from 1.32 m)

HAAT Along Each Radial:

Azimuth HAAT
094.82
4521.23
90-195.6
13598.32
180-3.46
22524.52
270-122.29
31593.02