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: 40.799500
Longitude: -77.869444

Site Elevation:
373.48 meters

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

Height Above Average Terrain:
26 meters, based on 8 radials.
(rounded from 26.24 m)

HAAT Along Each Radial:

Azimuth HAAT
068.06
45102.7
9050.13
135-67.8
18022.62
22535.19
270-1.31
3150.33