Premium Content Subscriber only A team of marine rescue volunteers and two nbn Disaster Satellite Service units have been added to Mackay's emergency toolkit. Mackay Mayor Greg Williamson said the council had worked with NBN Co to install the satellite technology at the Mackay Entertainment and Convention Centre and at Sarina. "After the Tropical Cyclone Debbie, one of the biggest issues that we had in our valley, was communication," Cr Williamson said. "The (nbn) service provides a back-up communications connection using satellite technology and will be switched on to 'disaster mode' during an emergency event, providing free full satellite broadband functionality, including Wi-Fi and video streaming," Mackay Regional Council documents stated.