Every vessel that carries an AIS transponder is transmitting information. Parts of this information are automatically sent while other parts are manually set by the crew. Using this type of notifications you can get immediately informed regarding updates on the transmitted information made by the vessel's crew:
AIS Name Changed: Get notified in case the name of the subject vessel changes to another by the vessel's crew.
AIS Flag Changed: Get notified in case the vessel's flag has changed. There is no dedicated info on the vessel's flag on AIS transmissions. However, a change to a vessel's MMSI number (as reported via AIS) is a very strong indication that the subject vessel has changed flags.
AIS Destination Changed: Get notified when the destination input on AIS changes to another by the vessel's crew.
AIS Draught Changed: Get notified when the subject vessel's draught changes by at least certain centimetres. Centimetres is a parameterised variable which you can define according to your wish. For example, if you set the draught change to 50cm you will receive a notification when the selected vessel reports draught that is different by at least 50cm compared to her previous one. The minimum accepted value is 10cm.
AIS ETA Changed: Receive notifications whenever the subject vessel's ETA (Estimated Time of Arrival) changes by certain minutes. In this case, the user-defined variable is "minutes". For example, if you set the minutes to 60, you will receive a notification in case the vessel's crew that you are interested in, changes her ETA by 60 minutes or more. The minimum accepted value is 30 minutes.
AIS Status Changed: Every vessel transmits her navigational status via AIS. With this notification, you will be immediately informed about any such changes.
Tie notifications of this type to your vessels of choice and get direct information whenever the vessel's crew provides its AIS transponders with new data.