11TRACKER950 CHARTPLOTTER Installation and Operation ManualNAVMAN2-4 Turning on and off / Auto PowerAuto PowerIf the TRACKER950 is wired for Auto Power (seesection 10-3), then the TRACKER950automatically turns on and off with the boat power;you can not turn the TRACKER950 on or offmanually.To turn the unit on manually1 Hold the Esc key down until it beeps, thenrelease the key. It displays a title screen for afew seconds, then beeps again and displaysa navigation warning.2 If you can not read the display then thescreen backlight may be set too low. Pressthe BackLt key (the softkey furthermost tothe right) to turn the backlight on full (seesection 9-1).If the display is in the wrong language, selectthe right language (see section 9-1).Read the warning and press the Confirmkey.3 It displays the Satellite Status screen. Waitfor the GPS or DGPS receiver to start up,which should take less than three minutes.4 It is then ready to use. It displays theUnderway screen, the first of the mainscreens (see section 2-6).To turn the unit off manuallyHold down the Esc key. The unit beeps anddisplays a countdown window. Continue to holddown the Esc key until the unit turns off.2-3 AlarmsWhen the TRACKER950 detects a conditionoutside the alarm parameters, it gives an alarm. Itbeeps continually and displays a warning messagein a window.To clear the alarm, press the Esc key.The MOB feature saves the boat’s position andthen navigates back to this point. To do this:1 Either:hold down the two softkeys labelled MOBat the same time for about a secondor press an external MOB button forabout a second (if one is installed)It beeps 4 times and boat’s position is storedas the waypoint ‘MOB’.2 The display changes to the Underwayscreen, with a scale of 0.1 miles, with theMOB waypoint situated in the centre of thescreen. It goes to plotter mode, with a whitescreen with crosshatching, rather thandisplaying a chart (see section 9-4).2-5 Man overboard (MOB)3 If the NMEA output is on, you are asked: “IsAutopilot Active?” This gives you theopportunity to disengage the autopilot nowbefore going to the MOB waypoint.Then press the Yes or No key.Warning: If the autopilot is active and youpress the Yes key then this might result ina sudden and dangerous turn.4 Navigate back to the place where MOB waspressed.To clear MOB.1 Press the two MOB keys again.2 A window appears asking if you want tocancel the MOB. Press Yes.The following alarms can be enabled or disabled:Arrival Radius, Anchor Alarm, XTE Alarm and LowFuel (see section 9-3).