Title: Satellite-to-ground radiowave propagation
Subjects: Artificial satellites in telecommunication, Radio wave propagation, Radio waves, Ionospheric radio wave propagation, Optical communications, Telecommunication, Equipment and supplies, Ondes radioélectriques, Propagation, Satellites artificiels dans les télécommunications, Propagation dans l'ionosphère, Télécommunications optiques, Télécommunications, Équipement, Communications satellites, TECHNOLOGY & ENGINEERING, Mobile & Wireless Communications, Radio, Satellitenfunk, Ionospheric electromagnetic wave propagation, Optical communication, Radiowave propagation, Satellite communication