K6TU.NET uses elevation data from the USGS (NED) and the Global Ensemble Digital Terrain Model (GEDTM).

You can generate a terrain profile for any location between longitude 83S and 82N within 2 minutes. Use the terrain profile with K6TU.NET TERA (online terrain analysis) or the ARRL HFTA program to model horizontal antennas over actual terrain.

K6TU TERA is a state of the art terrain analyzer using the Method of Moments (MoM) to provide a full-wave solution of your antenna over your terrain.

K6TU.NET provides the terrain profile data and K6TU TERA online. No files to download, no applications to install. All in your broswer!

TERASweep uses K6TU TERA to generate a full azimuth/elevation model of your horizontal antennas over the terrain at your QTH.

TERASweep runs on the K6TU.NET server using the Terrain Profile service and K6TU TERA full-wave analyzer.

In combination with the propagation prediction engine, this gives you the best predictions available - anywhere!