How does the government decide 'how far radio waves travel'?—Radio wave propagation, interference prediction, and the nature of administrative technical judgment

When you are involved in radio, strange things happen from time to time.Stations you usually cannot hear become audible. Signals from beyond the mountains suddenly become strong. Radio waves arrive ...
Military

STR to develop new modeling and simulation for HF radio waves to help improve communications and sensing

ARLINGTON, Va. – U.S. military researchers needed a company to develop new ways to model the ionosphere in real time to help predict the propagation of high-frequency (HF) radio waves for improved ...
Electronic Design

Fraunhofer HHI updates open-source radio propagation model for 5G

Berlin, Germany. At the beginning of August, Fraunhofer Heinrich Hertz Institute HHI released QuaDRiGa 2.0, which is a major update of its well-established open-source radio propagation model.