HAPS maker Stratospheric Systems successfully tested 5G beamed to earth from 45,000 feet U.K. telecoms tech developer Stratospheric Platforms announced this week a successful demonstration of 5G broadband connectivity using an airborne antenna. The company said it maintained a 5G signal for five hours from a “stratospheric 5G mast” operating at 45,000 feet (ca. 14 km), with… Reade More "5G broadband goes to the stratosphere"