The most promising change on the horizon, certainly the topic that incited the most interest at a recent Rohde & Schwarz seminar, is the journey to ubiquitous global coverage by combining terrestrial (TN) and non-terrestrial networks (NTN). This change in the topology of the global network, to include a 3D perspective of land and space, requires the highly complex integration of wireless telecommunications in space and for now, leaves the wireless community doing some guesswork to predict how best to fit the pieces together. The land-based telecommunications network covers 80% of the global population, but only 40% of global landmass, which means that land networks are failing to connect to 20% of the global population and any area of the…