2.7.0 spase://HamSCI/Observatory/HamSCI HamSCI HamSCI 2025-04-16T23:40:52 The Ham Radio Science Citizen Investigation (HamSCI) functions as a volunteer-based distributed observatory network composed of individually operated radio stations worldwide. It supports ionospheric research by providing observations of radio signal propagation. spase://SMWG/Person/Nathaniel.Frissell PrincipalInvestigator spase://SMWG/Person/William.Engelke TechnicalContact spase://SMWG/Person/Kornyanat.Hozumi MetadataContact Earth.NearSurface.Ionosphere