24 RAYDATA Installation and Operation Handbook3.8 Man Overboard (MOB)If your RayData is connected via SeaTalk to other instruments with thefacility to handle “man overboard” (MOB) calculations, you can sendand cancel MOB warnings. Note that no waypoint data will be sent bythe RayData.Sending an MOB WarningTo send an MOB warning, press the DEPTH and SPEED keystogether, as indicated by the MOB label on the RayData front panel. Anaudible alarm sounds (unless this has been disabled using the Setupoption, as described in Chapter 4).If there is no MOB Master instrument on your SeaTalk system, theRayData screen will display the message “MOB NOT AVAILABLE”.If an MOB Master on the SeaTalk system responds, the audible alarmstops and an MOB page such as the following is displayed:D3071-1This shows the location and distance of the MOB point you need tosteer towards, together with a steering bargraph. It is a special versionof the Waypoint/Bearing/Distance page (see page 56).The MOB page is also displayed if a SeaTalk MOB message isreceived from other instruments.Note: Certain models of Raymarine chart plotters will respond to anMOB warning from the RayData, and track to the MOB location, but willnot return the data for the RayData to display. In this case, you can turnoff the audible alarm by pressing any key. The message “MOB NOTAVAILABLE” will be displayed until you cancel the MOB.