It's probably a safe bet that many readers of this "Propagation" forum are familiar with the HFTA program by N6BV which is on the CD of
The ARRL Antenna Book. As such you may be interested in a thread recently started over on qrz.com:
https://forums.qrz.com/index.php?threads/seeing-the-effects-of-local-terrain-on-radiation-patterns.733041/That thread covers use of the free k6tu.net "Terrain Profile Request" service, how to "see" the terrain via a 3D viewer, and how to "see" how the local terrain changes the azimuth/elevation pattern for a given antenna.
Dan, AC6LA
Author
Topic: Seeing the Effects of Local Terrain on Radiation Patterns (Read 96 times)