Abstract

John Costa has retired from this Journal’s Board of Editors, after 35 years of active contribution. From 1990 to 1992, he was Executive Editor (and Editor-in-Chief), producing eight issues of the Telecommunication Journal of Australia (TJA), the name of this Journal up until 2013. Just as significant were the many subsequent issues of the Journal for which he was Guest Editor, from 1994 onwards. TJA evolved first into the Australian Journal of Telecommunications and the Digital Economy (AJTDE: 2013–2018) and subsequently the more deliberately international Journal of Telecommunications and the Digital Economy (JTDE: 2019– ). As an ongoing and popular member of the Editorial Advisory Board, John was noted for his skill in commissioning new papers from distinguished overseas authors, as well as the impetus he gave the Journal in its coverage of new forms of satellite and terrestrial radio communications.