Access the status of the Cortex® system in the status bar at the top of the Handset screen. It also provides easy access for Stealth Mode to be toggled on and off.
At a glance, if all the status items presented are green you know your VHF, DSC and AIS systems are fully operational and AIS position reports are being transmitted automatically. If any are yellow, then the AIS transponder is either not fully configured, is in Stealth mode, or is currently joining the AIS network. A red or yellow status typically means that there is a problem that requires attention; e.g. if the antenna goes open circuit the VHF antenna check will display red.