Explorer 660 Chartplotter and Fishfinder Installation and Operation Manual www.northstarnav.
IMPORTANT SAFETY INFORMATION Please read carefully before installation and use. DANGER This is the safety alert symbol. It is used to alert you to potential personal injury hazards, Obey all safety messages that follow this symbol to avoid possible injury or death.
Contents Important ................................................................................................................................................6 1 Introduction .........................................................................................................................................7 1-1 Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1-2 Plug-in cards . . . . . . . . . . . . . . . . .
8 Sonar fishfinding: Introduction ........................................................................................................... 31 8-1 Using the Explorer 660 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 8-2 Interpreting the display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 8-3 Single and Dual frequency fishfinding . . . . . . . . . . . . . . . . .
16 Installation ....................................................................................................................................... 61 16-1 What comes with this product? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 16-2 Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 16-3 Mounting the display unit . . . . . . . . . . . . . . . . . . . . . . . . .
Important It is the owner’s sole responsibility to install and use the instrument in a manner that will not cause accidents, personal injury or property damage. The user of this product is solely responsible for observing safe boating practices. Global Positioning System: The Global Positioning System (GPS) is operated by the US Government which is solely responsible for its operation, accuracy and maintenance.
1 Introduction The Northstar Explorer 660 is a compact, rugged, highly integrated GPS navigation chartplotter and sonar fishfinder. It is designed to be easy to use and has a large, easy to read color display. Complex navigation or fishfinding functions can be performed with a few key presses, taking the hard work out of boating. This manual describes how to install and operate the Explorer 660 and gives troubleshooting and operating tips.
1-2 Plug-in cards The Explorer 660 can use two kinds of plug-in card: C-MAP™ chart cards have chart details required for navigating in a particular region. When a chart card is plugged in, the extra details automatically appear on the Explorer 660 chart display. C-MAP™ user cards are used to store navigation data. Each user card expands the Explorer 660 memory and allows the data to be transferred to another Explorer 660 easily (see section 13). Note: The older 5 volt user cards are not supported.
1-3 Removing and replacing the display unit If the display unit is bracket mounted then the display unit can easily be removed and replaced for security or protection. Removing the display unit: 1 Adjust tilt, then tighten knobs Turn the Explorer 660 off (see section 2-1) 2 Push the dust cover over the display unit. 3 Hold the display unit and remove the knobs from the mounting bracket.
2 Basic Operation Overview of the keys Go back to an earlier menu or display. Any changes are ignored. In chart mode centers chart at boat's position. Show a menu of the main Explorer 660 displays. To go to a display, select it from the menu (see section 2-6). , , , Cursor keys, to move the cursor or the selection highlight. Show a menu of the options for the current display. Press MENU again to display the Setup menu (see section 15). Start an action or accept a change.
2-1 Turning on and off / auto power Auto power If the Explorer 660 is wired for auto power (see section 16-5), then the Explorer 660 automatically turns on and off with the boat power, and can not be turned on or off manually. Turning off manually If the Explorer 660 is not wired for auto power, turn the unit off by holding down until the display turns off. Turning on manually If the Explorer 660 is not wired for auto power, turn the unit on by pressing .
2-4 Alarms When the Explorer 660 detects an alarm condition, it displays a warning message on the display, the internal beeper sounds and any external beepers or lights operate. Press ESC to clear the alarm. The alarm will sound again if the alarm condition occurs again. The Explorer 660 has twelve user settable alarms (see section 15-8). In addition, the Explorer 660 has a fixed alarm for loss of GPS fix. 2-5 Simulate mode Simulate mode allows a user to become familiar with the Explorer 660 off the water.
2-6 The main displays To show a display, press or to DISPLAY, press select the type of display to show (Chart, Sonar or Other), press or to select the display from the list, then press ENTER. To return to the chart display, press ESC.
Highway Fuel Data Waypoints Routes Satellite Tides User card About 14 Northstar Explorer 660 Installation and Operation Manual
2-6-1 Dual displays The active display has a yellow border. The Explorer 660 can show two displays at once, for example Chart + sonar or Sonar + highway (see section 2-6). When two displays are shown at once, one of the displays, called the active display, is controlled by the user. For example: To change the active display, press DISPLAY twice: For example, if Chart + sonar is shown: If Chart is the active window, then press DISPLAY twice to make Sonar the active display.
2-6-3 Data header and compass The chart, sonar and highway displays can show data and a compass at the top of the display. A typical display with data and compass Data header Compass The data header 1 Press MENU and select Data header. 2 To turn the data header off or on: 3 i Select Data. ii Select Off or On. To choose the size of the numbers: i ii 4 Select Size. Select: Small: displays three fields per line and up to four lines. Medium: displays two fields per line and up to six lines.
3 Navigation: Chart The chart display shows the chart, the boat’s position course and navigation data. To show the Chart display, press ESC until the chart is displayed. 3-1 Introduction to navigating The Explorer 660 has two ways of navigating, going straight to a point or following a route. Enter waypoints at points of interest before starting to navigate (see section 5-2-1). Tip: Create a waypoint at the start of the trip to navigate back to.
3-2 Chart display A typical chart display shows: Data header. To turn the data off or on or to change what data is displayed, see section 2-6-3. A compass (see section 2-6-3). The chart. To change the types of information displayed, (see section 15-2). Typical waypoint (see section 5). Boat position (see section 3-2-1). Boat track (see section 3-6). The cursor (see section 3-2-1). Boat course and CDI lines (see Appendix C, CDI). Boat is going to the waypoint called FISH06.
3-2-2 Latitude and longitude 3-2-5 Find nearby places Latitude and longitude can be displayed in the data header. Normally the position is the boat’s position, and the latitude and longitude has a boat symbol to show this: 36° 29.637' S 1 Latitude To see places near the boat’s position, press ESC to switch to centre on boat mode. To see places near a different point, move the cursor to that point on the chart. Longitude 2 Press MENU and select Find.
3-3 Distance and bearing calculator The distance and bearing calculator can plot a course of one or several legs and to show the bearing and length of each leg, as well as the total distance along the course. The completed course can be converted into a route. To use the distance and bearing calculator: 1 Press ESC until the chart display is displayed. Press MENU and select Distance. 2 Move the cursor to the start of the first leg. It does not matter if this point is a waypoint or not. Press ENTER.
3-5 Projected course If Projected course is turned on, then the Explorer 660 will display the projected position based on the course over ground (COG), speed and a specified time. To turn Projected course on and off and to set the time, see section 15-2. Projected position Boat’s projected course Boat position 3-6 Tracks and tracking Tracking records the boat’s position to memory at regular intervals, which can be: Time intervals. Or distance intervals.
4 Navigation: Highway display The highway display has a bird’s eye view of the boat’s course to a destination: To show the Highway display, press DISPLAY, select Other, then select Highway. ! The highway display shows: Optional data header (see section 2-6-3) Optional compass (see section 2-6-3) Destination waypoint Boat’s plotted course to destination CDI lines, parallel to the boat’s plotted course (see Appendix C, CDI). The CDI lines are like a highway over the water where the boat will move.
5 Navigation: Waypoints A waypoint is a position of interest that is saved by the Explorer 660, for example a fishing spot or a point on a route. The Explorer 660 can have up to 3000 waypoints. A waypoint can be created, changed or deleted. A waypoint has: A name (up to eight characters). An icon showing what kind of waypoint it is. A type: Normal: A normal waypoint can be navigated to or included in a route. Danger: A danger waypoint is a point to avoid.
5-2 Managing waypoints ! WARNING Do not create a navigation waypoint on land or in dangerous water. 5-2-1 Creating a new waypoint Creating a new waypoint from any display Press . A new waypoint is created at the boat position with the default name and data. To change the default data, see section 5-2-3. 5-2-3 Editing a waypoint Editing a waypoint from the chart display 1 2 Press MENU and select Edit. 3 Change the waypoint data (see section 5-2-7). Select Save.
Deleting a waypoint from the waypoints display 1 2 or to In the waypoints display, press highlight the waypoint to delete. Press MENU and select Delete. 5-2-8 Sort Waypoints To change how the waypoints list is displayed: 1 Press MENU and select Sort by. 2 Select how to display the list: Name: In alphabetical order by name. Select Yes to confirm. Icon: Grouped by icon type. 5-2-6 Deleting all waypoints 1 In the waypoints display and press MENU and select Delete all. 2 Select Yes to confirm.
6 Navigation: Routes A route is a list of waypoints that the boat can navigate along. Routes can be created, changed and deleted. The Explorer 660 can navigate along a route in either direction. Waypoints on the route can be skipped. The Explorer 660 can have up to 25 routes. Each route can have up to 50 waypoints. Routes are a powerful feature when the Explorer 660 is connected to an autopilot, allowing the vessel to be automatically guided along the route.
5 To insert a waypoint in the route: i Move the cursor to the chosen leg to insert the waypoint. ii Press MENU and select Insert. 4 To insert a waypoint in the route: i To insert the first waypoint in a new route, select Leg 1. To insert a waypoint at the end of the route, select the unused leg at the end of the list of waypoints. iii Move the cursor to where the new route waypoint will be. iv Press ENTER. 6 Otherwise, select the waypoint to insert the new waypoint in front of.
6-2-3 Displaying a route on the chart To view the selected route at the centre of the display: 1 In the routes display, press or to highlight the route to display. Press MENU and select Display. Or, in the Chart display, press MENU, select Find, then select Route. Select a route from the list. 2 The Explorer 660 displays the selected route on the chart. 6-2-4 Deleting a route 1 In the routes display, press or to highlight the route to delete. Press MENU and select Delete. 2 Select Yes to confirm.
7 Satellites GPS worldwide navigation GPS antennas The US Government operates the GPS system. Twenty-four satellites orbit the earth and broadcast position and time signals. The positions of these satellites are constantly changing. The GPS receiver analyses the signals from the closest satellites and calculates exactly where it is on earth. This is called the GPS position. The Explorer 660 must be used with an external GPS antenna: • Normally, use the GPS antenna supplied.
7-1 Satellite display The satellite display has information about the GPS satellites and GPS position. To go to the satellite display, press DISPLAY, select Other, then select Satellite. The satellite display shows: Time and date from GPS satellites. Time is local time (UTC [GMT] plus local offset, see section 15-12) Status of GPS antenna, for example Acquiring, GPS fix, No GPS.
8 Sonar fishfinding: Introduction This section explains how to interpret the sonar displays, when and why to use the different frequencies and how fish are detected and displayed. It also describes Gain and Range and shows examples of some of the different sonar displays. 8-1 Using the Explorer 660 The Explorer 660 uses a sonar transducer attached to the hull.
8-2 Interpreting the display The sonar displays do not show a fixed distance travelled by the boat; rather, they display a history, showing what has passed below the boat during a certain period of time. The history of the sonar signal displayed depends the depth of the water and the scroll speed setting. In shallow water, the echoes have a short distance to travel between the bottom and the boat.
Frequency and cone width The sonar pulse generated by the Explorer 660 transducer travels down through the water, spreading outwards in a cone shape. The cone width is dependent upon the frequency of the pulse; at 50 kHz it is approximately 45°, and at 200 kHz it is approximately 11°. The differences in the cone width affect what is displayed. See section 8-3.
8-3 Single and Dual frequency fishfinding Sonar frequencies When to use Mixed The Explorer 660 has two sonar frequencies, 200 kHz and 50 kHz. To select the sonar frequency to use, set Frequency (see section 15-3). When to use 200 kHz The Mixed frequency combines the 200 kHz and the 50 kHz echoes on one sonar display, filling in detailed echoes in the centre of the sonar cone.
Comparison of the same fish scenario displayed at different frequencies: Now 30 seconds ago 1 minute ago 50 kHz display 200 kHz display Note the smaller, defined fish arches and more bottom detail.
8-4 Fish detection and display Where to find fish Underwater features like reefs, wrecks and rocky outcrops attract fish. Use the 50 kHz or 50/200 kHz frequency display to find these features, then look for fish by passing over the feature slowly several times using the Zoom display (see section 9-2). If there is a current, the fish will often be found downstream of the feature. When fishing with the Explorer 660 with the Fish symbols Off, a weak fuzzy band may appear between the bottom trace and surface.
8-5 Gain, threshold and range The Explorer has three settings that affect the sonar display: • • Gain: The gain of the sonar receiver. The gain should be high to display good detail, but if the gain is too high then information from the strong bottom signal is lost and false echoes might be displayed. There is a separate gain setting for each sonar frequency, 50 kHz and 200 kHz. Threshold: Return echoes less than the threshold are ignored.
Manual range is useful in areas of rapidly changing bottom depth, such as around pinnacles, to prevent the display from redrawing often to always show the bottom. To revert to automatic range, with the bottom always displayed: • Either press GOTO/AUTO and select Cruise or Fishing. • Or press MENU, select Range and select Auto. If gain and threshold are manual, they will stay manual. 5 Set threshold to zero. 6 Adjust Gain so the peak of the strong signal from the bottom just touches the gain line.
9 Sonar fishfinding: Displays To show the Sonar display, press DISPLAY, select Chart or Sonar, then select a sonar display. There are five kinds of sonar display. To use a display: 1 Press MENU and select Sonar splits.
9-2 Sonar Zoom display The display shows the sonar history on the right and the zoomed section on the left. Depth line marks the centre of the zoomed area The zoom bar on the far right shows the area of the history that is magnified in the zoom section: • Press or to adjust the zoom range (the range of depths included in the zoom section). • If Bottom lock is on, the zoom depth (the depth of the zoom section) is adjusted automatically so that the bottom is always displayed in the zoom section.
9-4 Sonar 50/200 display The display shows the 50 kHz sonar history on the left and the 200 kHz sonar history on the right. Gain can be set independently for each frequency (see section 8-5). Range applies to both frequencies (see section 8-6). 50 kHz sonar 200 kHz sonar history history 9-5 Sonar A-Scope display Threshold line Unwanted noise signal Peak of bottom signal Gain line Sonar history A-scope display The display shows the sonar history on the left and the A-Scope display on the right.
10 Data display The data display has eight large numeric data fields, four lines with two fields per line, plus a graph of the water temperature and depth over the last 20 minutes. To show the data display, press DISPLAY, select Other, then select Data. To select what data is displayed: 1 2 Press MENU and select Data setup. Change a data field: i Press the cursor keys to highlight the field. ii Press ENTER to display a menu of the data that can be shown in the field.
11 Fuel display Used shows total fuel used since this was last reset with the Clear Used command. Remaining shows the amount of fuel remaining in the tank(s). Flow shows the fuel consumption per hour. For twin engine installations, the fuel flow for each engine is shown separately. This is useful for checking that both engines are under the same load. To show the Fuel display, press DISPLAY, select Other, then select Fuel.
12 Tides display The tides display shows tide information at a tide station for the selected date. Choosing the date of the tide chart 1 Press MENU. To show the tides display for the tide station nearest to the boat, press DISPLAY, select Other, then select Tides. 2 Select Today, Next day or Prev day. To go to the tides display for any tide station: 1 From the chart display, press MENU and select Find. 2 Select Tide stations. 3 A list of tide stations are displayed.
13 User card display A C-MAP™ user card is an optional plug-in card that can store data files (see section 1-2). There are three types of files: waypoints, routes or a track. To go to the user card display, press DISPLAY, select Other, then select User card. Note: The older 5 volt cards are not supported. The user card display has: File list A list of the files on any user card in the Explorer 660. If there are more files than will fit on the display, press or to scroll up or down a page at a time.
A routes file: The new routes are added to any existing routes in the Explorer 660. If a new route has the same name as an existing route but has different data then the Explorer 660 asks which route to keep. This reads the file names from the user card and displays them. Reading does not load any file data into the Explorer 660. A track file: The new track will replace the existing track in the Explorer 660. 1 Press MENU and select Card. 2 Select Read.
15 Setting up the Explorer 660 The Explorer 660 has a number of advanced features which are set up through the setup menu. We recommend that you become familiar with the operation of the unit using the default settings before making any changes to the data in these menus. The Setup menu and options are summarized on the next page. The factory default settings are shown where applicable. Each Setup menu option is explained in the following sections.
Setup menu and options Factory default settings are shown where applicable.
15-2 Setup > Chart Press MENU once or more until the Setup menu is displayed, then select Chart: Projected course The Explorer 660 can estimate the course after a given time, based on the current speed and heading (see section 3-5). The options are 2 minutes, 10 minutes, 30 minutes, 1 hour, 2 hours or Off. CDI Scale The CDI Scale is described in Appendix C, CDI. The options are 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 4.0 and 10.0 distance units.
Map datum Map shift Explorer 660 GPS positions are based on a worldwide reference (datum) known as WGS 84. Most paper charts are based on WGS 84. However, some paper charts are based on other datums In these cases, the latitude and longitude coordinates of objects on the Explorer 660 chart display are different to the latitude and longitude coordinates of these objects on the paper chart.
Bathymetric Lines and soundings Chart cards contain a large amount of spot sounding and depth contour data. This can be selectively displayed by turning Bathymetric Lines and Spot Soundings on, then selecting the range to display with Bath and Sndgs Min and Max. Note: In some early chart cards the information icons are inactive. Depth area limits The depth area limits control the chart water colors for different depths.
Color bar Interference filter This shows the range of colors used for the selected color palette. This filters the echo signal to reduce high-level, spiky interference, such as engine noise. It can be switched On or Off. If switched On, it is displayed down the left hand side of all the sonar displays. Pulse length Zoom bar This shows the vertical range that is enlarged in the Zoom section. It can be switched On or Off.
15-4 Setup > GPS Press MENU once or more until the Setup menu is displayed, then select System: Static Navigation When the boat stops or moves very slowly, the calculated GPS speed and course become erratic. Static navigation is a number, and the options are: • 0.01 to 99.9: If the boat speed is slower than this, the speed is displayed as zero and the course stays unchanged. • 0 (Off): The calculated speed and course are always used.
15-5 Setup > Fuel These features can be used only when the optional single or twin engine fuel kit has been installed. Press MENU once or more until the Setup menu is displayed, then select Fuel: Clear Used Select Clear used to set Used (the amount of fuel used) to zero. Do this to start measuring the amount of fuel used over a certain time or distance. When asked Are you sure? select Yes. Tank size Enter the capacity of the fuel tank. Num. engines Set the number of engines to 0, 1 or 2.
15-6 Setup > Track Press MENU one or more times until the Setup menu is displayed, then select Track: Plotting Interval The options are Distance or Time. Distance Select the distance plotting interval: 0.01, 0.05, 0.1, 0.5, 1.0, 2.0, 5.0 or 10.0 distance units. Time Select the time plotting interval: 1, 5, 10 or 30 seconds or 1 minute. Memory used The percentage of memory used in the track being recorded. Tracking records and displays the boat’s course on the chart (see section 3-6).
15-8 Setup > Alarms Press MENU one or more times until the Setup menu is displayed, then select Alarms: The Explorer 660 has thirteen alarms. All except Loss of GPS fix can be turned on (enabled) or off (disabled). Symbol 56 The Fish and Loss of DGPS fix alarms can be set to on or off. For the other alarms, enter a trigger value to turn the alarm on. The alarm will sound each time the alarm value equals the trigger value.
15-9 Setup > Units Press MENU one or more times until the Setup menu is displayed, then select Units: The default units are shown in this example.
15-11 Setup > Calibrate Press MENU once or more until the Setup menu is displayed, then select Calibrate: Temperature The factory settings should be sufficiently accurate for normal usage. To calibrate the temperature readout, first measure the water temperature with a thermometer known to be accurate. Use the cursor keys to display the temperature readout box, then increase or decrease the value to match the measured temperature. The temperature can be set from 32° to 99.9°F (0° to 37.
4. Check the actual amount of fuel used per engine by refilling the portable tank(s) to the original level and noting the reading(s) from the fuel dispenser’s gauge. Keel offset is a depth correction representing the vertical distance between the depth transducer and the location from which the depth is to be measured. 5. Select Fuel. Use the cursor keys to change the reading for each engine to match that on the fuel dispenser’s gauge.
15-13 Setup > Favorites Press MENU once or more until the Setup menu is displayed, then select Favorites. The favorites are used by the PAGES key (see section 2-6-2). The first three favorites are preset to Chart, Sonar and Chart + sonar, and can not be altered. To select a display for Favorite 4, 5 or 6: 1 Select the favorite to set. 2 A list of choices is displayed. Select one. 15-14 Setup > Simulate Simulate mode is a way of becoming familiar with the Explorer 660 (see section 2-5).
16 Installation Correct installation is critical to the performance of the unit. There are three components to install, the Explorer 660 display unit, the sonar transducer and the GPS antenna. In addition, install the optional fuel kit to use the Explorer 660 as a fuel computer. The Explorer 660 can be wired for auto power so that it automatically turns on and off with the boat power and can not be turned on or off manually.
16-2 Options and Accessories • Through hull dual frequency sonar transducer • Through hull speed/temperature transducer • Fuel kit for single or twin petrol/ gasoline engines. If a fuel kit is installed, wire auto power on so that the Explorer 660 is on all the time the engine is on and no fuel consumption is missed (see section 15-3). If the NMEA input on the fuel sensor cable is used, then a Northstar special fuel cable is required (see section 16-6).
16-3 Mounting the display unit There are two mounting arrangements: • • Flush mounting requires a solid panel with access behind for wiring and mounting screws. After flush mounting, the Explorer 660 cannot be tilted or moved after installation to reduce any unwanted glare or reflections. Carefully select the best viewing position before installation. This would generally be in a shaded area. Bracket mounting requires a panel for mounting the bracket.
16-4 Mounting the GPS antenna and transducers GPS antenna Optional fuel kit Fit the GPS antenna (see section 7) and install the antenna cable back to the Explorer 660. Follow the instructions in the manual supplied with the antenna. Connect the antenna to the Explorer 660: The cable on the GPS antenna supplied has a plug with a yellow collar. Plug this into the connector on the back of the Explorer 660 with a yellow nut. Tighten the locking collar.
Connections GPS antenna Power/data cable Blue connector Black connector Yellow conWhite nector connector Optional fuel sensor Transom mount dual frequency sonar transducer Power/data cable Pin Wire Function 1 Black Ground: power negative, NMEA ground Note: The cable has two wires with black coverings, the black wire (pin 1) and the shield (covered with heatshrink). These wires are connected within the cable and therefore it does not matter which black wire you use.
16-5 Wiring the power/data cable 1 Wire the power: • • Basic wiring Either Basic wiring: When the main switch is on, the Explorer 660 must be powered on manually with the key. The engine hours counter and fuel counter are disabled. Or Auto power wiring: The Explorer 660 turns on and off automatically when the ignition is turned on and off. The engine hours counter and fuel counter are enabled. Choose auto power when the optional fuel kit is fitted.
16-6 Systems of several instruments Several Northstar instruments can be connected together to share data. There are two ways of connecting instruments together, NavBus or NMEA. NavBus and the Explorer 660 The Explorer 660 can: Display wind speed and direction from an optional Wind instrument, such as a Northstar W310 or W315. NavBus Receive data from an optional GPS or GPS/DGPS source.
Appendix A - Specifications Dual frequency: 50 kHz and 200 kHz GENERAL Size: 201 mm H x 190 mm W x 72 mm D (7.9" x 7.5" x 2.8"). Transom transducer cable length: Weight: display unit 115 g (2.2 lB). Depth acquisition time from startup: Display: 6.4" diagonal, TFT color, 800 x 480 pixels. Backlight: Display and keys Supply voltage: 10.5 to 30.5 V DC. Supply current: at 13.8 V 350 mA min - no backlighting. 1 mA max - full backlighting.
6.1" (156.0 mm) 9.3" (236.0 mm) 7 .2 " (1 84. 0m 9.3" (236.0 mm) m) 7.5" (190.0 mm) 4.3" (110.0 mm) List of datums Adindan American Samoa 1962 ARC 1950 Astro Beacon 'E' 1945 Astro Tern Island (Frig) 1961 Ayabelle Lighthouse Bissau Camp Area Astro Cape Chatham Island Astro 1971 Corrego Alegre Djakarta (Batavia) European 1950 Gan 1970 Guam 1963 Herat North Hong Kong 1963 Indian 1954 Indonesian 1974 ISTS 073 Astro 1969 Kerguelen Island 1949 L. C.
Appendix B - Troubleshooting This troubleshooting guide is written with the assumption that the user has read and understood the relevant sections in this manual. to ensure that the display unit is reassembled correctly and is waterproof. Users who service the product themselves will void the warranty. It is possible in many cases to solve difficulties without having to send the display unit back to the manufacturer for repair.
B-2 GPS navigation problems 2-1 No GPS fix or long time to get fix at startup: 2-5 The time or date on satellite display is wrong or off: a May occur occasionally if the antenna does not have a clear view of the sky. The satellite positions are constantly changing. a No GPS fix. b In simulate mode. Turn simulate mode off (see section 15-14). Antenna cable not connected to display unit. c Local time offset is wrong (see section 15-12).
g Inspect the power cable from end to end for damage such as cuts, breaks, squashed or trapped sections. h Ensure there is not another fishfinder or depth sounder turned on, which may interfere with this Explorer 660. i Electrical noise from the boat’s engine or an accessory may be interfering with the transducer(s) and/or the Explorer 660. This may cause the Explorer 660 to automatically decrease the Gain unless using Manual Gain.
B-4 Fuel consumption problems Note: For the Explorer 660 to measure fuel consumption, the optional fuel flow kit must be fitted. d Inspect the fuel cable from end to end for damage such as cuts, breaks, trapped or squashed sections. 4-1 Fuel used or remaining seem inaccurate: e Check that the fuel filter is clean.
Appendix C - Glossary and navigation data Glossary Attention Area - An important area on a chart, such as a restricted anchorage or a shallow area (see section 15-2). Bathymetric line - A depth contour line on the chart. MOB - Man overboard. MOB function - Starts navigating back to the place where someone fell overboard (see section 2-4). Chart card - A plug-in card that stores chart data for a region (see section 1-2).
Navigation data The boat is sailing from the start to the destination and has moved off the plotted course from the start to the destination. BRG Bearing to Destination: Bearing to the destination from the boat. +BRG Bearing to cursor: Bearing to cursor from boat (cursor mode, see section 3-2) CDI Course Deviation Indicator: When the boat is navigating to a point, the chart and highway displays show a parallel line on either side of the plotted course.
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