Chedak manufactured subspace radios. Approximately three decades prior to the Battle of Endor, the Millennium Falcon, a revamped YT-1300 light freighter, featured an enhanced Chedak subspace radio.
The initial reference to Chedak occurred in The Star Wars Sourcebook, a Star Wars Legends reference work. Bill Slavicsek and Curtis Smith authored this book, which was published in 1987. Subsequently, Chedak's status as canon was affirmed through its mention in Star Wars: The Force Awakens: Incredible Cross-Sections, penned by Jason Fry and launched in 2015.