Route Alarm
You can setup TZ iBoat to warm you when a route is activated and when your vessel position strays over the route XTE (Cross Track Error):
You can enable or disable this alarm from the Alarms settings. The alarm distance is link to the route XTE value that can be adjusted from the Routes settings under "XTE Value".
When the vessel goes outside the route XTE, a red status bar will appear at the top of the screen, and if the alarms sound are enabled (refer to the Alarm Sound chapter), a siren will play through your device speakers.