Index 77IndexSymbols3-Line Page 49Ú and Ù keys 25AAlarms 35–42Handling 41Setting 36Turning on and off 37Anchor Alarm 47Adjusting 40Average Speed 52BBearing 56Boat Heading 58BRG/DTW/COG/SOG 56CCalibration 31COG (Course Over Ground) 56Configuration 1, 70Connections 13Contrast 22DData displayedPart of larger system 3Stand-alone unit 2Data loss 62Data sent 4Data sources 69Dead Reckoning 55Deep Alarm 47Adjusting 39DepthMain 44Minimum 46DEPTH (LIGHTS) key 25Depth Chapter 44–49Depth offset 30Disabling alarms 37Display components 19Display Pages 43–60Distance 56Down key 25DTW 56EETA 57FFault finding 62HHandling alarms 41Heading 58Locked 59IIllumination 22Installation 5–15KKeysFunctions 67Illumination 22Using 18LLighting and contrast 22Locked Heading 59using 23Log 53MMain Depth 44Maintenance 64Man Overboard (MOB) 24Master mode 31, 70Maximum Speed 51Minimum Depth 46MOB (Man Overboard) 24Mounting the RayData 11