Rosewater was also the site of the AdelaideRadio (VIA) maritime radio station system, the sixth built in Australia and one of 19 around the country. Opened 1 October 1912 it operated from 8am to midnight every day of the week, and was one of the first points of contact for ships sailing south from Hong Kong and Japan. Apart from its major function of listening for ships' messages, Adelaide also handled traffic to and from the State telegraph system, and broadcast time signals to shipping. By 1963 the rapid industrialisation of the Rosewater area had increased electrical interference to the point where a move to a new site became necessary and the operation was moved to McLaren Vale where it operated until 1993 when it was shut down.