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Any reference to Raytheon or RTN in this manual should be interpreted as Raymarine. The names Raytheon and RTN are owned by the Raytheon Company.
SL70 PLUS Series Pathfinder Radar Display Owners Handbook
Document number: 81205_1 Date:March 2002

March 2002 INTENDED USE

The display units detailed in this handbook may form part of navigational radar systems intended for light marine use. These displays and radar systems are only an aid to navigation.

SAFETY NOTICES

This radar equipment must be installed and operated in accordance with the instructions contained in this manual. Failure to do so can result in personal injury and/or navigational inaccuracies. In particular: 1. HIGH VOLTAGE. The LCD display unit and scanner unit contain high voltages. Adjustments require specialized service procedures and tools only available to qualified service technicians there are no user serviceable parts or adjustments. The operator should never remove the display unit cover or attempt to service the equipment. 2. ELECTROMAGNETIC ENERGY. The radar scanner transmits electromagnetic energy. It is important that the radar is turned off whenever personnel are required to come close to the scanner to perform work on the scanner assembly or associated equipment. It is recommended that the radar scanner is mounted out of range of personnel (above head height). Avoid looking directly at the antenna as your eyes are the most sensitive part of the body to electromagnetic energy. When properly installed and operated, the use of this radar will conform to the requirements of ANSI/IEEE C95.1-1992 Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3Hz to 300 GHz and NRPB, Board Statement on Restrictions on Human Exposure to Static and Time Varying Electromagnetic Fields and Radiation. Doc NRPB, N0. 5 (1993). 4. NAVIGATION AID. This unit is only an aid to navigation. Its accuracy can be affected by many factors, including equipment failure or defects, environmental conditions, and improper handling or use. It is the users responsibility to exercise common prudence and navigational judgements. This radar unit should not be relied upon as a substitute for such prudence and judgement.
SL70M & SL70C PLUS Pathfinder Radar Displays
Raymarine products are supported by a network of Authorized Service Representatives. For information on our products and services, contact either of the following: UNITED STATES Raymarine Inc. 22 Cotton Road, Unit D Nashua, NH 03063-4219 Telephone: ++Fax: +EUROPE Raymarine Limited Anchorage Park Portsmouth Hampshire PO3 5TD England Telephone: +44 (0) 3611 Fax: +44 (0) 4642
Copyright Raymarine Ltd. 2002 The technical and graphical information contained in this handbook, to the best of our knowledge, was correct as it went to press. However, our policy of continuous improvement and updating may change product specifications without prior notice. As a result, unavoidable differences between the product and handbook may occur from time to time, for which liability cannot be accepted by Raymarine. Raymarine is a registered trademark of Raymarine Limited. SeaTalk is a registered trademark of Raymarine Limited. Pathfinder Plus is a trademark of Raymarine Limited. This product contains technology provided under license by Acorn Group plc. The copyright of this intellectual property is acknowledged by Raymarine Ltd., as are Acorns trademarks and patents. Acorns world wide web address is http://www.acorn.com.

Preface

This handbook describes the following PLUS series displays from Raymarine:

Full functionality of the radar is achieved when it is part of an integrated system with other equipment connected via SeaTalk or NMEA 0183. Data from this equipment including position and heading is shown on the display and is used in calculations. Details on connecting other equipment are given in Chapter 6.
Providing Heading Data for MARPA
The performance of MARPA is dependent on the quality of your heading sensor. It is important that both the heading sensor and the radar scanner (bearing alignment) are correctly calibrated. Refer to the appropriate heading sensor and radar scanner handbooks for calibration details. The better the accuracy of your heading data, the better the performance of MARPA. A gyro compass provides the best performance in all conditions. Alternatively you could use a fluxgate compass with rate gyro stabilization. MARPA requires heading data to be frequently updated (we recommend a data output rate of greater than 8 Hz); heading data must therefore be provided to the display on NMEA. We recommend the Pathfinder Smart Heading System (which includes the Gyro Plus 2 unit). Good results are also obtained with a Raymarine autopilot system incorporating a 150G or 400G Course Computer with internal rate gyro. Other heading sensors connected on NMEA may provide satisfactory results in reasonable sea states. However, in unsettled conditions a rate gyro compass is advisable. Contact Raymarine Customer Services or your authorized Raymarine dealer for additional information. For specific configuration details with the Raymarine course computer refer to Appendix C. If you are using a suitable third party heading sensor, refer to its documentation for installation and calibration details.
Heading and Position Data
1.2 The Pathfinder Radar PLUS Display
When a scanner is connected and the radar is in Transmit mode, the radar picture provides a map-like representation of the area in which the radar is operating. Typically, your ships position is at the centre of the display, and its dead ahead bearing is indicated by a vertical heading line, known as the Ships Heading Marker (SHM). The radar picture can be viewed with a variety of fixed or customised range scales. On color displays, the color of the radar returns (echoes) indicates their intensity: the strongest returns are shown in yellow and the weaker are shown in shades of blue. A status bar at the top of the radar image displays range, current heading and mode indicators for the various options you can set. An example radar picture is shown on the next page, with example radar returns (echoes) and default Pathfinder Radar information. The Status Bar is also illustrated. The radar display can show additional information, depending on your currently selected options, set up selections and the data available from other equipment. The example displays on the following pages show some of these features. Functions are available to control the display as follows: Zoom the Display Offset your vessel from the centre of the radar picture Operation of these functions is described in Chapter 2.

AUTO WKS EX GZ GST FTC RC IR
Heading mode Rain Normally Head Up (H-UP); Clutter Course Up (C-UP) or North Up (N-UP) can be selected if heading data available Interference FTC (Remote rain) Rejection

D3993-2

Figure 1-1:

Radar Display Features

Radar Functions
RR AUTO FTC 1/2 H-UP G S T FTC TIME CURSOR POSITION BRG 063 R 5049^13N RNG 1.65 nm 00112^09W

EX RC IR

13:48:06

6.3kts

5.7kts
Data boxes, showing data (if available) in the selected units
Mark, symbol selected using setup options Mark, default symbol Active waypoint - from Chartplotter Offset centre Long target wake (short, medium or long wakes can be selected) Waypoint data box, showing range, bearing and time to go

D3601-2

WPT 203T 1.20nm 01h:30m

Figure 1-2:

Typical Radar Picture
The Pathfinder Radar includes the following functions: Choice of range scales from / nm to 72nm (dependent on scanner type).
Automatic and manual control of tuning, gain and sea clutter. Two Variable Range Markers (VRMs) and Electronic Bearing Lines (EBLs), allowing target range and bearing measurements. VRM/EBLs can be floated. Target wakes and target expansion mode. Two guard zones with alarms. Add marks to record important or dangerous locations. Man Overboard (MOB) to navigate back to a person or object. 10 Target MARPA Operation of these radar functions is described in Chapter 3 and Chapter 4.
You operate the radar using a variety of controls: A trackpad providing up, down, left, right and diagonal control of an onscreen cursor. Eleven dedicated (labeled) control keys. Four soft keys with labels displayed on the screen. Pop-up menus, displayed on-screen, from which you select options. Database lists, displayed on-screen, which enable you to edit items. Note: The cursor is the cross-hair symbol (+) visible on the display. You move the cursor using the trackpad and use it to select a position or item on the chart. The control keys are shown in Figure 1-3. They are back-lit for night-time use. When you use a control, a help message is displayed at the top of the screen (unless you switch help off as described in Chapter 5). The following paragraphs describe the controls and on-screen facilities.

Dedicated keys

Trackpad

Soft keys Dedicated keys

D3596-3

Figure 1-3:

LCD Display Control Keys

Trackpad and Cursor

The trackpad has several functions: To move the cursor around the screen To select an item from a pop-up menu To adjust a variable soft key control

Soft Key Labels: Change when you press a key. Default soft key labels are shown.
VRM/EBL Used to measure range and bearing to/between targets. - Press to place VRM/EBL if one not already placed. Adjust position using trackpad, and press ENTER to finish. - Press to display soft keys if VRM/EBL already placed.
VRM/EBL1 OFF ON VRM/EBL2 OFF ON FLOAT VRM/EBL DATABOX OFF ON
Press soft key to toggle window on/off, or return to full screen. Zoom: Press ZOOM key to display zoom window options. Move Zoom box using trackpad, press ENTER to finish.
MARKS / MOB Controls placing marks, and Man Overboard function. - Press to place mark at cursor position, and use trackpad to move mark. Press ENTER to finish. - Press and hold for 2 seconds to activate or cancel MOB. Soft keys Press to select option, or highlight option or slider. Labels change when you press soft/dedicated key. Elipses (.) after the text indicate that pressing soft key leads to a further display of soft key options. ENTER Confirms selection and (if appropriate) clears current soft key labels. It either performs the selected task, accepts changes, or leads to display of more options. When cursor text is displayed, takes cursor control of the object. When arrow-head cursor symbol is displayed, drops the object under cursor control. CLEAR Cancels operation in progress and returns to the previous display. Deletes an object/function under cursor control. Trackpad Controls cursor position on the screen, and also the sliders and setup options. Hold the trackpad down to move the cursor faster. POWER Press and hold until unit beeps to turn on display. Press to toggle between Standby and Transmit. Press for 3 seconds to turn off display.
Use soft key to toggle VRM/EBL on or off. Press FLOAT to access float options for existing VRM/EBL. Press VRM/EBL DATABOX to toggle data box display off/on.
MULTI Controls guard zone alarm sensitivity, and tuning the receiver. Also controls display lighting and contrast (monochrome) or brightness (color). - Press to display sliders. Monochrome
RANGE Controls range scale. Range scale and range rings are shown in the Status Bar. - Press top of key to increase the range scale. - Press bottom of key to decrease the range scale. - Press and hold to change the scale faster.
ALARMS Used to control guard zones.
- Press to display soft keys.
GUARD 1 OFF ON GUARD 2 OFF ON
Use soft key to toggle zone on or off. Adjust size/shape using trackpad, press ENTER to finish.
Color - Press and hold MULTI key for brightness to 100%.

ON 75% 25%

MENU Provides access to setup options.
SYSTEM SET UP RADAR SET UP MARPA SET UP
Select a slider using the soft key or trackpad. Toggle between Auto/Man or off/on by pressing key again. Adjust slider using trackpad, and press ENTER to finish.

3.2 Range Control

The radar picture can be viewed at various scales. The shortest range scale gives a maximum range of / nautical miles, measured from the default centre to the top of the radar picture. The longest range scale gives a maximum range of between 24 and 72 nautical miles depending on your scanner.
The long range scales provide the best overview of your vessels relationship to land masses, weather fronts and large ship targets in or beyond view. The short range scales provide greater detail of the radar echoes close to your vessel, and should be used as you approach the coastline, harbour or other vessels in the area. The Pathfinder Plus Radar display includes concentric range rings, which you can use to help you to judge distances on the radar picture. Their number and spacing are adjusted automatically if you change the range scale. They can be turned off (see You can use the context sensitive cursor to select and move the cursor data box (the label BOX is displayed). See Moving and deleting items with the context-sensitive cursor on page 1-10 on page 2-10).

Range Control

The Standard Range Scale
Details of the standard ranges that can be selected are shown in the table below. If you wish, you can customize the range scales by specifying different ranges, as described in Section 5.4, Radar Set Up Parameters.
Table 3-1: Radar Range Scales

Number of Range Rings

Maximum Range (nm)
0.125 0.25 0.5 0.75 1.24* 48* 72*

Range Ring Interval (nm)

0.0625 0.125 0.125 0.25 0.25 0.8 12
* The maximum range depends on your scanner type, as detailed in the Pathfinder Plus Radar Scanner Owners Handbook.
The number of range rings shown in the table is the number to the selected range. Additional range rings are displayed to the edge of the radar picture, at the standard ring interval for the current range, and are visible when the centre is offset.

Changing the Range

Increases the range scale

Selected range scale

Range ring spacing RR 1nm
Decreases the range scale

D3939_1

Figure 3-1:

RANGE AUTO MAN

Changing the Radar Range
Each time you press the RANGE key, the range changes to the next available setting. The system will beep three times if no further range scale is available. To change the range quickly, press and hold the required arrow on the RANGE key.
The range scale and range ring interval indicators, at the left-hand end of the status bar, are updated whenever you change the range.
Determining Actual Radar Range
The actual maximum radar range is essentially line-of-sight, and is limited by the height of the scanner and the height of the target as shown in Figure 3-1. Table 3-2 lists some range examples:
Earth Radar Rmax h H Rmax = 2.23 ( h + H )

4.2 Changing the Heading Mode
The radar picture is normally shown with your vessels dead ahead bearing straight up, as indicated by the Ships Heading Marker at 0 relative bearing. This is the Head Up orientation. If heading information is available via a SeaTalk or NMEA connection, you can choose a different heading mode. In Course Up and North Up mode you can also select relative or true motion.

True and Relative Motion

Changing the Heading Mode
Relative motion is the default for the radar display. In relative motion your own ships position remains fixed on the radar screen and all radar targets move relative to your own ship. In true motion, fixed radar targets maintain a constant position on the screen, whilst your own ship moves across the radar image at the appropriate speed and heading. A map-like image is thus displayed, with all moving vessels travelling in true perspective to each other and to fixed land masses. As your ships position approaches the edge of the screen, the radar display is automatically reset to reveal the area ahead of your ship. You can manually reset your ships position at any time by pressing the TRUE REL soft key twice.

Heading Modes

The heading modes are as follows:
Head Up North Up Course Up

D3988-1

Figure 4-1:

Radar Heading Modes

Head Up: The radar picture is displayed with the vessels current heading upwards. As the heading changes the picture will rotate. North Up: The radar picture is stabilized and displayed with north upwards. As you change heading, the ships heading marker moves. Course Up: The radar picture is stabilized and displayed with the currently selected course upwards. As you change heading, the ships heading marker moves. If you select a new course, the picture resets to display the new course upwards.
The reference used for the Course Up depends on the information available. The first available in the following list is used: 1. A locked heading (i.e. the heading being used by an autopilot) over a SeaTalk connection 2. The heading at the time Course Up was selected If 1. is in use and a new course (locked heading) is selected, the picture automatically rotates to the new Course Up. If 2. is in use, press the HDG MODE soft key then COURSE UP to manually reset the Course Up to the new course.
Selecting the Heading and Motion Mode
Press the HDG MODE default soft key to obtain the following display, when heading information is available:

NORTH UP

COURSE UP

HEAD UP

TRUE REL

D3641-3

The currently selected mode is highlighted, and is indicated in the radar status bar (N-UP, C-UP or H-UP and TM or RM).
To change the heading and motion mode:
1. Press the HDG MODE default soft key. 2. Press the soft key corresponding to the mode you require. The radar picture changes to the selected mode. 3. Press ENTER to clear the heading mode soft keys. The current orientation is indicated in the status bar. Note: True Motion is only available in Course Up and North up mode. If you re-select Course Up when this is already the current mode, the Course Up reference is reassessed according to the current data.

When the Soft Keys option is set to ON, the default soft keys are displayed if no other operation is in progress. When the Soft Keys option is set to OFF, the default soft keys are only displayed when a soft key is pressed, and they disappear if no operation is performed for 10 seconds.

Key Beep

This option controls whether or not the keys make a noise when you press them.

MOB Data

This option controls whether MOB data is based on position data, or on dead reckoning (DR). Dead reckoning normally provides a better indication of the course to an object in the water, on the assumption that your vessel and the object are both subject to the same tide and wind effects.

Menu Timeout Period

With no timeout set, menus and soft key labels remain displayed until you clear them by pressing ENTER, CLEAR or the appropriate dedicated key. If you set a value here, the menus and soft key labels will be cleared if a key has not been pressed for the specified number of seconds. This setting does not affect the default soft key labels, which are controlled by the Soft Keys option (see above).
You can set the units for speed, depth and temperature. The units you set will be used to display all data, including information received from other instruments on the system. However, the distance units do not affect the instrumented range of the radar, which is always in nautical miles.

Variation Source

The variation value is the difference between True and Magnetic direction data for heading or bearing values. The Variation Source option provides soft keys for selecting Auto or Manual variation mode, displays the current variation value for each and highlights the currently selected mode.

Auto Mode

If you select Auto mode, the display obtains the value of variation automatically, normally from received data. The variation value that is used depends on the data available, and is selected in the following order of priority: 1. Variation value from the same source as the heading data: If heading data is being taken from NMEA, then variation is also taken from NMEA If heading is taken from SeaTalk, then SeaTalk variation is used 2. Variation value from a different source: If heading data is being taken from NMEA, but no NMEA variation is available, then variation is taken from SeaTalk If heading is taken from SeaTalk, but no SeaTalk variation is available, then variation is taken from NMEA 3. A calculated variation value, using position data, if no SeaTalk or NMEA value is available 4. The current manual variation value, if no SeaTalk or NMEA value and no position data is available

Table 5-2:

Parameter EBL DISPLAY TIMED TRANSMIT TRANSMIT PERIOD STANDBY PERIOD DEFAULT MARK SYMBOL MARK DISPLAY CLEAR MARKS CUSTOM SCALE BEARING ALIGNMENT ANTENNA SIZE SEND ON HSB

Radar Set Up Parameters

Options MAG/TRUE, RELATIVE OFF, ON 10 scans, 20 scans, 30 scans 3, 5, 10 or 15 mins , OFF, ON Press soft key to clear marks database OFF, ON,SET RANGES. Slider value 4 ft., 6ft (only if an open array scanner is connected) Not valid for SL70 PLUS Series , , ON N/A OFF ft. Factory Default RELATIVE OFF 20 scans 10 minutes New Default

EBL Display

The mode of the bearing data displayed for Electronic Bearing Lines (EBLs). The bearing information can be displayed in either of two forms: Relative: The bearing relative to your vessels heading. Mag/True: The actual bearing in either degrees magnetic or degrees true. This option is only available if you are obtaining data from a compass. If you choose this mode, the selection you made for Bearing Mode determines whether M or T is displayed in the EBL data boxes. The current units are shown for the heading value in the status bar at the top of the screen.
Timed Transmission Option
The TIMED TRANSMIT parameter, together with the TX PERIOD and STANDBY PERIOD parameters, controls the radars timed transmission power-saving mode. When TIMED TRANSMIT is set to ON, the scanner performs the number of scans specified by TX PERIOD and then shuts down for the number of minutes specified by STANDBY PERIOD. While it is shut down, the scanner does not rotate, and the display is in stand-by. Set the TIMED TX parameter to OFF for normal operation. In this case, the TX PERIOD and STANDBY PERIOD values are ignored. Note: Timed Transmission is not available on a Repeater Display.

Marks Options

You can select the mark symbol that will be used when you place a mark (see Section 4.3). If you turn the MARK DISPLAY option OFF, any marks you have placed are hidden on the display, but retained in the marks database. You can turn the option on again to display them at any time. To clear all stored marks from the marks database, press the CLEAR MARKS soft key, and the YES soft key to confirm the deletion.

Custom Scale

You can set up your own range scale. When switched ON, this is used instead of the Pathfinder Plus Radar default range scale (see Section 3.2). To set up a scale, press the SET RANGES soft key. The Custom Range Setup Menu is displayed, which allows you to change the maximum range for each range selection. The following table lists the ranges, shows the factory default setting, and provides a space for you to make a note of your new setting.

Display Timing Adjustment
The display timing can be affected by the length of the cable used to connect the scanner to the display unit. This in turn affects the short range accuracy shown on the display. If you have extended (or reduced) your inter-unit cable, you will need to check the display timing before using the system for navigation.
Incorrect timing is most noticeable on the / nm or nm range scales. Targets such as bridges or piers appear bent or bowed.
Note: Under normal circumstances you do not need to adjust these settings, as they are set automatically at the factory. If these parameters are set incorrectly the performance of the radar will be adversely affected. Access to this menu is therefore via a hidden key press.
To adjust for correct timing:
1. Select the / nm range.
2. On the radar locate a straight dock, seawall or bridge that is facing your ship. If the image is bent or bowed, as shown in the following diagram, then you need to adjust the timing.

Own ship

Timing early

Timing late

Normal

D4009-2

Figure 6-11: Radar Display Timing
3. Press the MENU key to display the set up soft keys.
4. Press and hold the blank soft key directly to the right of the RADAR SET UP soft key for 5 seconds. The Advanced Set Up menu is then displayed. 5. Use the trackpad to move the selection bar down to the Display Timing option. 6. Use the soft keys to adjust the Display Timing slider. As soon as you start the adjustment, the menu page is cleared so that you can see the effects of the adjustment on the radar picture, and the radar is set to / nm range.
7. When the displayed image appears straight, press ENTER to return to the Advanced Set Up soft keys. 8. Press CLEAR to return to the set up soft keys, and CLEAR again to return to the normal radar screen. Alternatively, you can use a VRM in conjunction with a target at a known distance and adjust the picture so the target co-incides with the VRM.
Always check the installation before going to sea to make sure that it is not affected by radio transmissions, engine starting etc.

6.8 Integrated Systems

The displays can be linked to other equipment to transfer data as follows: Data can be received via SeaTalk or NMEA, some of which will increase the functionality of the display. Other data can be viewed on the display. Data can be transmitted via SeaTalk and NMEA to enhance other equipment. Some incoming data can be converted across the communication link and re-transmitted - see Data Conversion on page 6-27.
External equipment cannot be powered from the displays SeaTalk interface. It must be powered from the ships supply or via a SeaTalk bus. Ensure correct polarity of the SeaTalk connection. For systems where the ships power source is 24 V only, you may need to install a 24 V to 12 V DC converter. This is only necessary if the products being connected to the display are: SeaTalk compatible (for example, compass, GPS and instruments), and there is no existing SeaTalk bus

Integrated Systems

NMEA compatible, but operate only from 12 V (for example, compass, GPS and some navigators) The DC~DC converter must conform to the following specification:

Table 6-2:

Input Output Load
DC-DC Converter for External Equipment
21 to 32 V DC 13.6 V DC, isolated Continuous current rating, in excess of required load

SeaTalk and NMEA In

The display can receive a comprehensive range of data. The primary data is described below:

Table 6-3:

Function of SeaTalk and NMEA Data
Primary Uses Heading Modes MOB (if Speed data also available) MARPA (radar) MOB (also requires speed and HDG data) Position data in data box and Nav Window Waypoints & Marks Own vessel position (chart) Data Log (chart) Chart: Waypoint transfer Suggested Source Autopilot, Compass connected to SeaTalk bus NMEA Compass* SeaTalk GPS connected via Auxiliary JB Existing GPS Navigator via SeaTalk bus Existing GPS (or Loran-C) navigator with NMEA output

Position

Waypoint
Existing GPS Navigator via SeaTalk bus Existing GPS (or Loran-C) navigator with NMEA output
*Accurate heading data is required for MARPA, and it must be provided on NMEA. We recommend the Pathfinder Smart Heading System (which includes the Gyro Plus 2 unit) or a Raymarine autopilot system incorporating a 150G or 400G Course Computer with internal rate gyro. Heading data should ideally contain both magnetic and true heading. If only one is available then variation needs to be provided either manually or automatically - see Variation Source on page 5-8. Some other radars and chartplotters can exchange their cursors via SeaTalk. Locked heading should be used for Course Up if available via SeaTalk. Other data connected via a SeaTalk bus or via NMEA is generally displayed in data boxes, e.g. depth, apparent wind angle and speed, time. Note: The Raymarine Fishfinder uses its own depth data, rather than any other depth data on SeaTalk. If there is no other depth data on SeaTalk, Fishfinder depth is transmitted. If speed and temperature data are available on SeaTalk the Fishfinder uses this data; if this data is not on SeaTalk from other instruments, it is transmitted by the Fishfinder. For details of received data refer to the table in Appendix B:SeaTalk and NMEA Data Received and Transmitted.

7.2 Resetting the System

There are three types of reset available for the display: Factory Reset: This resets all values back to their original factory settings.
CAUTION: The factory reset clears the Marks database.
Power-On Reset: When you turn the display off and on again, the screen reverts to the radar picture with all windows cleared. Picture Reset: Press and hold the DISPLAY key for two seconds to return the screen to the full-screen picture of the top window with all windows cleared.
At power-on, the last-used values are retained for all the options, except for those listed in the following table which are reset to the factory default each time.

Table 7-1:

Item Heading Mode Rain FTC Alarm Zoom Windows Lighting & contrast (mono display) Brightness (Color Display)
Power On Default Settings
Power-on setting Head Up OFF (but value stored) radar only OFF (but value stored) radar only ON, with last-used value OFF OFF Lighting 40%, contrast 50% ON at 100%.
To perform a factory reset:
1. Press MENU. 2. Press the SYSTEM SET UP soft key to display the System Set Up page (see Section 5.3 for details). 3. Press and hold MENU for 5 seconds. A countdown timer is displayed. If you release the MENU key before the timer reaches zero, the reset is not performed. When the reset request has been accepted, the system restarts.

Resetting the System

The factory default settings are listed in Section 5.3

7.3 Problem Solving

All Raymarine products are, prior to packing and shipping, subjected to comprehensive test and quality assurance programs. However, if this unit should develop a fault, please refer to the following table to identify the most likely cause and the corrective action required to restore normal operation. If you still have a problem after referring to the table below, contact your local dealer, national distributor or Raymarine Technical Services Department for further advice. Always quote the product serial numbers. The display unit serial number is printed on the back of the unit.
Common Problems and Their Solutions

Table 7-2:

Problem Display does not function

Common Problems

Correction 1. Make sure that the power supply cable is sound and that all connections are tight and free from corrosion. 2. Check the system fuse. Check that the cable connecting the scanner to the radar display unit is firmly attached and undamaged. Perform the bearing alignment procedure described in Section 6.7, Radar System Tests and Installation Alignment
Scanner not responding message The bearing displayed on the radar display is not the same as the actual bearing.

Accessories and Parts

Raymarine accessory items and parts are available through your authorized Raymarine dealer. Please refer to the lists of component part numbers and optional accessories in the Installation chapter of this manual, and have the Raymarine part number ready when speaking with your dealer. If you are uncertain about what item to choose for your Raymarine unit, please contact our Customer Services Department prior to placing your order.

Worldwide Support

Please contact the authorized distributor in the country. A list of worldwide distributors is supplied with your system.
Appendix A: Specification
7" SL70 PLUS Series Displays
Approvals: CE - conform to FCC - conforms to Size: Weight Mounting Power 7"mono 7 color Environmental: Op/Storage Temp. Range -mono - color Humidity limit Controls Cursor Display Type: - mono - color Resolution: Display Size 7"mono 7"color Mono LCD Contrast Languages 7" diagonal - 143 mm x 111 mm 136 mm x 100 mm 100 levels, selectable via soft keys. UK English, US English, Danish, French, German, Dutch, Italian, Icelandic, Norwegian, Portuguese, Spanish, Swedish, Finnish 13 pin scanner 3 pin SeaTalk input/output 4 pin NMEA output 7 pin power including 2 NMEA input channels 1 x SeaTalk, receive and transmit 1 x NMEA 0183, transmit 2 x NMEA 0183, receive Cursor Echo between radar and chart on separate displays connected via SeaTalk. 7mono 7 color
1999/5/EC, EN60945:1997 Part 80 (47CFR) and Part 2 (47CFR) 223 x 204 x 75mm (8.8" x 8" x 3"), excluding bracket 223 x 205 x 152 mm (8.8" x 8.1" x 6"), excluding bracket 1.2 kg(2.6lbs) Bracket with panel mount option External 10.7 - 44 V DC required Floating earth/fully isolated 10 W consumption with full backlighting 20 Wmax. consumption with full brightness Waterproof to CFR46; suitable for external mounting -10C to +70C -10C to +50C up to 95% at 35C non-condensing 11 defined keys, 4 soft keys and trackpad Context sensitive, provides range/bearing or lat/lon 7" Film Super Twist Neumatic (FSTN) LCD, monochrome with 4 gray scales color TFT LCD

Displaying a Waypoint 2.11 Bearing Data (EBLs) 5.11
EBL (Electronic Bearing Lines) 3.1, 3.13 Display 5.11 Echoes 3.4 False 3.5 Indirect 3.6 Multiple 3.6 Electromagnetic Energy 1.iii EMC Conformance 1.vi, 6.20 Servicing and Safety Guidelines 7.2 ENTER Key 1.11 Expansion (Radar Targets) 3.4, 3.11, 3.12
Factory Reset 7.2 False Echoes 3.4, 3.5 Features Display 1.3 Radar 1.6, A.2 Floating VRM/EBLs 3.14, 3.16 FTC Control 3.4, 3.7, 3.10 Functions Radar 1.8
Gain Adjusting 3.7 Control 3.4 Recommendations 3.8 GAIN Key 1.11, 3.4, 3.7 GPS SOG/COG Filter 5.5, 5.10 G-Series Course Computer C.1 Guard Zones 3.1, 3.19 Controlling Alarms 3.19, 3.21 Deleting 3.19, 3.21 Moving 3.19, 3.21 Placing 3.19, 3.20 Reshaping 3.19, 3.21
Half Screen Windows 1.4 Selecting 2.7 Head Up 4.2 Heading 5.5, 5.8, 6.27 Heading Data 1.4, 3.23, 4.1, 4.5, 5.8, C.1 Heading Data Box 5.4 Heading Mode 4.2 Changing 4.1 Course Up 4.2 Effect on VRM/EBLs 4.3 Head Up 4.2 North Up 4.2 Selecting 4.3
Help 5.4, 5.7 Help from Raytheon Europe 7.6 US 7.5 High Voltage 1.iii MARPA 1.8, 3.23 Database List 3.26, 3.27 Heading Data 1.5 Set Up 5.2, 5.14 Target Data Box 3.27 Master Display Definition 1.2 Measuring Range and Bearing 3.1, 3.14 Floats 3.14, 3.16 MENU Key 1.11, 2.4, 5.1, 5.2 Menu Timeout 5.4, 5.7 MOB 4.1 Alarm 4.5 Cancel 4.6 Data Box 4.5 Data Selection 5.4, 5.7 Symbol 4.5 Waypoint 4.5 Mounting the Display Unit 6.10 Console Mounting 6.10 Moving a Data Box 1.10, 2.11 a Floating EBL 3.17 a Guard Zone 3.19, 3.21 a Mark 4.5 a VRM/EBL 3.16 the Cursor 1.10 MULTI Key 1.11, 2.6, 3.4, 3.7, 3.22 Multiple Echoes 3.4, 3.6
Identifying False Echoes 3.5 Identifying Objects 3.1 with Cursor Echo 4.6 Indirect Echoes 3.6 Installation Cable Runs 6.2, 6.8 EMC Conformance 6.20 EMC Guidelines 6.2 Integrated System 6.21 Location 6.2, 6.5 Integrated System 1.4 Definition 1.2 Installation 6.21 Installation Checks 6.28 Interference Rejection 3.4, 3.11, 3.12 Interpreting and Adjusting the Radar Picture 3.1, 3.4 Inter-Unit Cable 6.9 Items On-Screen 1.10
Junction Box for External Instruments 6.25
Key Beep 5.4, 5.7 Keys Dedicated 1.3, 1.9, 1.11 Lighting 2.5, 2.6 Soft 1.3, 1.9, 1.11, 5.4, 5.7
Nav Data from other Equipment 4.1 Window Options 1.4 Navigation Aid 1.iii Navigational Echoes 3.4 NMEA 1.4 Cable 6.8 Data 4.1, 4.4, 6.24 Heading 5.5, 5.8, 6.27 Input Connection 6.13, 6.22, 6.24 Output Connection 6.13, 6.26, 6.28 NMEA Out Set Up 5.5, 5.9 North Up 4.2

Pop-Up Menus

Pop-up menus usually provide set up options. When a pop-up menu is onscreen, a set of associated soft keys is also displayed as shown in Figure 1-6.

RADAR SET UP MENU

EBL DISPLAY TIMED TRANSMIT TRANSMIT PERIOD STANDBY PERIOD DEFAULT MARK SYMBOL MARK DISPLAY CLEAR MARKS CUSTOM SCALE BEARING ALIGNMENT OFF RELATIVE OFF 20 SCANS 10 MINS x OFF

D3649-2

Figure 1-6:

Typical Pop-up Menu

You use the trackpad to select an option from the menu, then use the appropriate soft key to set the option. For example, you can toggle TIMED TRANSMIT on/off.

Database Lists

The waypoints, routes and tracks that you create on the SL72RC PLUS chartplotter are stored in database lists. You can view these lists and select items for editing.

WAYPOINT LIST

SYMBOL NAME WAYPOINT 001 WAYPOINT 002 WAYPOINT 003 WAYPOINT 004 WAYPOINT 005

POSITION BRG _186

TEMP DATE

5021^966N 00120^368W

BRG _21.0nm

DEPTH TIME

--/--/--

--:--:--

GOTO WAYPOINT

EDIT WAYPOINT

MAKE NEW WAYPOINT

WAYPOINT TRANSFER

D4262-1

Figure 1-7:

Typical Database List
As with pop-up menus, when a database list is on-screen, a set of associated soft keys is also displayed; you use the trackpad to select an item from the list, then use the appropriate soft key to edit the item. For example, you can erase a waypoint or a route.
Chapter 2: Getting Started & Adjusting the Display
This chapter provides information and instructions to get you started using the SL72 or SL72RC PLUS display. It will help you to become familiar with the display and the functions of the controls before you start using the unit. More detailed information on operating the radar display is provided in Chapter 3 and Chapter 4. Chartplotter operating details are given in Chapter 5 and Chapter 6.

2.1 Introduction

Conventions Used

Zoom Box, indicating the enlarged area. You can move this using the context-sensitive cursor, to change the image in the Zoom Window

Zoom Box cursor text

RADAR ZOOM ( x2 )
Zoom Window, providing a times 2 enlargement of the area shown in the Zoom Box
CURSOR BRG 033 R RNG 1.78nm

D3972-1

To return to the normal display, press DISPLAY and then press the ZOOM soft key to set the function OFF.
Alternatively, you can press and hold DISPLAY for 2 seconds. This also removes any grouped data boxes.

Offsetting the Center

The radar picture is normally shown with your vessel at the center of the display. However, you can move the center, so that your vessel is offset by up to 66% of the radius, anywhere on the screen. Note: You cannot offset the center when the radar display is set to the longest range scale.

To change the center:

1. Move the cursor over the center of the radar picture, until the letters CTR are displayed. 2. Press ENTER to take cursor control of the center point. The cursor changes to a four-headed arrow. 3. Move the cursor to the required off-center position. 4. Press ENTER again to set the position and return to normal cursor control.
Hiding the Ships Heading Marker (SHM)
Bearing scale markers adjusted to point towards the offset centre position

Offset centre

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Figure 2-8:

Radar Display with an Offset Center
To return the center of the radar picture to the center of the screen, repeat step 1 and then press the CLEAR key. The center is always reset to the center of the display when you turn on the Radar display.
Note: When the center is offset, additional range rings are displayed to the edge of the radar picture, at the standard ring interval for the current range. If you have selected the longest range scale, you cannot offset the center.
The radar picture includes the ships heading marker, which is a line from your vessels position to the edge of the picture at the vessels current heading. In the standard Head Up mode, the heading marker is always a vertical line. If you wish to check for small targets that may be hidden under the heading marker, you can hide it momentarily using the context-sensitive cursor.
To hide the heading marker:
1. Position the cursor over the heading marker, so that the text SHM is displayed. 2. Press and hold CLEAR. The heading marker is hidden until you release the CLEAR key.

2.5 Chart Display Control Functions (SL72RC PLUS only)

Moving Around the Chart

You will normally operate the chartplotter with the chart showing your vessels current location. The default orientation is North-Up, and the vessel moves across the screen. You will need to move the chart if your vessel moves out of the area currently displayed, or if you wish to examine or place waypoints in another area. Alternatively, you can home the cursor onto the vessel using FIND SHIP. There are four ways in which you can move the chart: Use the trackpad to move the cursor to the edge of the chart. The chart will pan across. This method is useful if the area you wish to see is only just off the screen. Use the context-sensitive cursor to change the chart center. Automatically re-center the vessel using the FIND SHIP soft key. Change the chart scale to zoom out and in to a new area centered on the cursor position. This method is useful if the area you wish to see is a long distance away.
Chart Display Control Functions (SL72RC PLUS only)
Changing the Chart Center
You can move the area of the chart displayed on the screen using the contextsensitive cursor. This allows you to center your vessel in the middle of the screen, or to move the chart so that your vessel is displayed off-center anywhere on the screen.

To center the chart:

1. Use the trackpad to move the cursor to the vessels position. The cursor text POS is displayed. 2. Press CLEAR. The chart is moved so that your vessels position is in the center of the screen.
To move your vessels position off-center:
1. Move the cursor over your vessels position until the letters POS are displayed. 2. Press ENTER to take control of the chart position. The letters POS are now in inverse video, and the cursor symbol has changed to a four-way arrow. This indicates that the cursor can be used to move the chart in any direction.

D4278-1

Figure 2-9:
3. Use the trackpad to move the cursor to the required position. 4. Press ENTER to select the position and return to normal cursor control. The chart is redrawn with the vessel position at the cursor. Alternatively, you can press CLEAR to abandon the move and leave the chart (and vessel) in its former position.

3.2 Range Control

The radar picture can be viewed at various scales. The shortest range scale gives a maximum range of / nautical miles, measured from the default centre to the top of the radar picture. The longest range scale gives a maximum range of 24 nautical miles.
The long range scales provide the best overview of your vessels relationship to land masses, weather fronts and large ship targets in or beyond view. The short range scales provide greater detail of the radar echoes close to your vessel, and should be used as you approach the coastline, harbour or other vessels in the area. The Pathfinder Plus Radar display includes concentric range rings, which you can use to help you to judge distances on the radar picture. Their number and spacing are adjusted automatically if you change the range scale. They can be turned off (see Switching Radar Range Rings or Chart Grid On and Off on page 2-13).

Range Control

RANGE AUTO MAN

Changing the Range

Increases the range scale

Selected range scale

Range ring spacing RR 1nm
Decreases the range scale

D3939_1

Figure 3-1:

Changing the Radar Range

Each time you press the RANGE key, the range changes to the next available setting. The system will beep three times if no further range scale is available. To change the range quickly, press and hold the required arrow on the RANGE key.
The range scale and range ring interval indicators, at the left-hand end of the status bar, are updated whenever you change the range.

The Standard Range Scale

Details of the standard ranges that can be selected are shown in the table below. If you wish, you can customize the range scales by specifying different ranges, as described in Section 7.4, Radar Set Up Parameters.

Table 3-1:

Radar Range Scales

Number of Range Rings

Maximum Range (nm)

0.125 0.25 0.5 0.75 1.24

Range Ring Interval (nm)
0.0625 0.125 0.125 0.25 0.25 0.2 4
The number of range rings shown in the table is the number to the selected range. Additional range rings are displayed to the edge of the radar picture, at the standard ring interval for the current range, and are visible when the centre is offset.
Determining Actual Radar Range
The actual maximum radar range is essentially line-of-sight, and is limited by the height of the scanner and the height of the target as shown in Figure 3-1. Table 3-2 lists some range examples:
Earth Radar Rmax h H Rmax = 2.23 ( h + H )
Cliff in nautical miles in metres in metres

D1643-2

maximum radar range radar antenna height target height
Rmax = radar horizon of antenna (a1) + radar horizon of target (a2)

Figure 3-2: Table 3-2:

Determining Radar Range Radar Range
Target Height (m) Maximum Range (nm) 7.8 10.9 8.9 12.0

Antenna Height (m) 5 5

Note: The ranges shown in the table are theoretical maximum ranges. The radar horizon is greater than the optical horizon, but the radar can only detect targets if a large enough target is above the radar horizon.
3.3 Interpreting and Adjusting the Radar Picture
Navigational echoes may be large, small, bright or faint, depending not only on the size of the object but also on its orientation and surface. Different objects reflect the radar signals in different ways. For example, vertical objects such as cliffs reflect signals better than sloping ones such as sandbanks. High coastlines and mountainous coastal regions can be observed at the longest radar range. However, the first sight of land may be a mountain several miles inland from the coastline. The actual coastline may not appear on the radar until the vessel is close to the line of sight distance. The radar indication may not be similar to your visual observation; a nearby small object may appear to be the same size as a distant large object on the radar. However, with experience the approximate size of different objects can be determined by the relative size and brightness of the echoes. Some targets, such as buoys and small boats, can be difficult to differentiate, since they bob and toss about in the waves and do not present a consistent reflecting surface. Consequently, these echoes have a tendency to fade and brighten and, at times, to disappear momentarily. Buoys and small boats often resemble each other, but boats can usually be distinguished by their motion. Not all radar echoes are produced by hard navigational items. Some echoes may be received from irregularities on the surface of the water, particularly at close range (sea clutter), or from rain or snow either around the vessel or in the distance. In addition, some echoes may be indirect returns to the radar scanner, providing false echoes or multiple echoes. The effects of many false echoes can be minimized, and the target presentation clarified using the controls summarized below. This section explains how to interpret the radar picture and how the controls affect the display. It provides instructions for adjusting the settings, describes the circumstances in which they should be adjusted, and how they interact with each other.

True and Relative Motion

Changing the Heading Mode
Relative motion is the default for the radar display. In relative motion your own ships position remains fixed on the radar screen and all radar targets move relative to your own ship. In true motion, fixed radar targets maintain a constant position on the screen, whilst your own ship moves across the radar image at the appropriate speed and heading. A map-like image is thus displayed, with all moving vessels travelling in true perspective to each other and to fixed land masses. As your ships position approaches the edge of the screen, the radar display is automatically reset to reveal the area ahead of your ship. You can manually reset your ships position at any time by pressing the TRUE REL soft key twice.

Heading Modes

The heading modes are as follows:
Head Up North Up Course Up

D3988-1

Figure 4-1:

Radar Heading Modes

Head Up: The radar picture is displayed with the vessels current heading upwards. As the heading changes the picture will rotate. North Up: The radar picture is stabilized and displayed with north upwards. As you change heading, the ships heading marker moves. Course Up: The radar picture is stabilized and displayed with the currently selected course upwards. As you change heading, the ships heading marker moves. If you select a new course, the picture resets to display the new course upwards.
The reference used for the Course Up depends on the information available. The first available in the following list is used: 1. A locked heading (i.e. the heading being used by an autopilot) over a SeaTalk connection 2. The heading at the time Course Up was selected If 1. is in use and a new course (locked heading) is selected, the picture automatically rotates to the new Course Up. If 2. is in use, press the HDG MODE soft key then COURSE UP to manually reset the Course Up to the new course.
Selecting the Heading and Motion Mode
Press the HDG MODE default soft key to obtain the following display, when heading information is available:

NORTH UP

COURSE UP

HEAD UP

TRUE REL

D3641-3

The currently selected mode is highlighted, and is indicated in the radar status bar (N-UP, C-UP or H-UP and TM or RM).
To change the heading and motion mode:
1. Press the HDG MODE default soft key. 2. Press the soft key corresponding to the mode you require. The radar picture changes to the selected mode. 3. Press ENTER to clear the heading mode soft keys. The current orientation is indicated in the status bar. Note: True Motion is only available in Course Up and North up mode. If you re-select Course Up when this is already the current mode, the Course Up reference is reassessed according to the current data.

While the cursor is over the waypoint, the waypoint soft keys are displayed.
To remove the waypoint data box and soft keys either:
Move the cursor away from the waypoint, or press CLEAR.
To display the waypoint details from the waypoint list:
Select the waypoint in the list as described above. The details for the selected waypoint are displayed in the lower half of the window. Temperature, depth, date and time are included (if available) for waypoints placed at the vessel position. To remove the Waypoint List and return to the default soft key display, press CLEAR twice.
Editing the Waypoint Details
You can change the name, symbol and position of any waypoint.

To edit a waypoint:

1. Select the waypoint, using the cursor or the waypoint list, as previously described. The waypoint soft keys are displayed.
2. Press the EDIT WAYPOINT soft key. The Edit Waypoint soft keys are displayed:

SYMBOL NAME POSITION

D4166-1
3. To edit the symbol, press the SYMBOL soft key. Use the soft keys, shown in the following illustration, to highlight the required symbol, then press ENTER to confirm the selection. Press ENTER or CLEAR to return to the default soft keys.

SELECT SYMBOL

D4178-1
4. To edit the waypoint name, press the NAME soft key. The NAME WAYPOINT window is displayed. Use the trackpad to enter or edit the name: Use the left or right side of the trackpad to move the cursor to the character you wish to change. Use the top or bottom of the trackpad to scroll through the characters. When you have finished editing the name, to remove the window, press ENTER to save the name or CLEAR to cancel the operation. The waypoint name replaces the waypoint number. Press ENTER or CLEAR to return to the default soft keys.
5. To edit the waypoint position, press the EDIT WAYPOINT soft key, followed by POSITION. The Waypoint Position pop-up is displayed. Use the soft keys to select LAT, LON, BRG or RNG. Use the trackpad to edit the value: Use the left or right side of the trackpad to move the cursor to the character you wish to change. Use the top or bottom of the trackpad to scroll through the characters. Adjust each parameter until the waypoint position is correct. When you have finished editing the position, press ENTER to save the position or CLEAR to cancel the operation. Press ENTER or CLEAR again, the Waypoint Position window is removed from the screen and the default soft keys are displayed.

2. Use the ins key like the displays ENTER key, to close the Waypoint List. The del key and left and right arrow keys do not function in select mode.
Editing Entries in the Waypoint, Route, or Track Lists
You can also use the Navigator Keypad to edit an existing item or to name a new item in the Waypoint List, Route List, or Track List. You first must enter the edit mode for the list you want to modify. Methods for editing each list are described in the respective sections of this chapter.
To edit an item in a list using the Navigator Keypad:
1. If necessary, use the right and left arrow keys to move the cursor to the desired character position. 2. Press an alphanumeric key until the desired character is displayed. Each time you press one of these keys in succession, the next character on that key is input. 1. Use the up and down arrow keys to scroll through the list of alpha, numeric, and special characters until the desired character is displayed (just as you would with the ). Note that you must use this method to input special characters; they are not available using the alphanumeric keys. Use the del key to insert a space, if required. 2. Use the arrow keys and alphanumeric keys to input the remainder of the characters required to complete the editing. 3. When done, press the ins key to enter your changes.

5.4 Working with Routes

A route is made up of a series of waypoints (maximum 50). To make a route you place a series of waypoints on the chart, or you can select waypoints from the Waypoint List. You can also save your vessels track as you navigate, then convert the track to a route - this function is described in Section 5.7. When a route is created it becomes the current route and is displayed onscreen. The current route is maintained when you power-off. Only one route can be current and is displayed (if it is in the field-of-view) as solid lines connecting waypoints. If you are following the route, the current leg is shown as a dotted line and previous legs are removed from the screen (although the waypoints remain displayed). The current route (and its waypoints) is transferred via SeaTalk to a repeater chart display and other instruments. You can also use the Waypoint Transfer functions to transfer the route database to a repeater display. Once you have created a route you can use the GOTO soft keys to follow the route. In addition, the GOTO default soft key provides various options as described in Section 5.5. Up to 20 routes can be saved in the route database. You can then select a route from the database list as the current route. The current route can be edited by adding and moving waypoints. The current route is always placed in the database list as route number 0, so you can edit the current route without affecting the original route in the database. Once a route has been saved, options are also provided to name a route, erase a route and to display route details. You can use the route information to review your passage plan by adjusting the planned Speed Over Ground (SOG). Note: It is possible for the current route to be overwritten by a route from another unit on an integrated system, so it is advisable to save all routes. This section explains how to perform the following tasks: Creating a new route. Saving the current route in the database list. Clearing the current route. Retrieving a route from the database list as the current route. Displaying route information, including the route leg data and waypoint details. Use the waypoint details to review your passage plans for different speeds. Using the database list to erase and name existing routes. Editing a route by adding, removing and moving waypoints.

Retrieve a Route From the Database
You can select a route as the current route from the database list. The list is accessed from the second set of ROUTE soft keys.
To select a route as the current route:

SHOW ROUTE

1. Press the ROUTE soft key, followed by MORE, then press ROUTE LIST. The route list is displayed as illustrated in Figure 5-7. The selection bar indicates the selected route. 2. Use the trackpad to select the required route then press the SHOW ROUTE soft key. The chart is re-drawn at a scale suitable to display the whole route.
1. Press the ROUTE default soft key or place the cursor over a route leg until the text RTE is displayed. Press the CLEAR ROUTE soft key.
CURRENT EMPTY EMPTY EMPTY EMPTY

ERASE ROUTE

ROUTE INFO

NAME ROUTE

Displaying Route Information

RTE WPT

D4263-1

Figure 5-7:

Route List Window
You can display the following information that relates to your route: Route leg or waypoint information, using the context-sensitive cursor. Details of waypoints in the route, using the soft keys. You can use this information to review your passage plan.
Route Leg and Waypoint Information
To display information about a route leg, move the cursor over the leg until the letters RTE are displayed. A Route Leg data box such as the following is displayed.
ROUTE NO. ROUTE NAME LEG 02 - 03 0T 5.5nm

D4259-2

To remove the data box, move the cursor away from the route or press CLEAR.
To display information about a route waypoint, move the cursor over the waypoint until the letters WPT are displayed. The waypoint data box is displayed, this box includes the route and waypoint number. To remove the data box, move the cursor away from the route or press CLEAR.
Using Route Information to Review Your Passage Plan
You can view data for all the waypoints in the current route, or any saved route. You select the route from the database list and the information is displayed in a Route Information pop-up; the following details are provided for each waypoint: Position Bearing (from previous waypoint) Length of leg (from previous waypoint) Total Length Time (ETA or Elapsed) Soft keys are provided to toggle the time between ETA or elapsed and to change the Speed Over Ground (SOG) value; the ETA for each waypoint is calculated using the selected SOG, so you can change the SOG to determine its effect on your ETA. The chart scenario Review Your Passage Plan on page 2-28 provides a simple example of how to use the route information.

You should always check the target waypoint before initiating a follow route.
To follow the current route:
1. Press the GOTO default soft key. The Goto/Follow soft keys are displayed. 2. Press the FOLLOW ROUTE soft key. Alternatively, to follow a route:
1. Place the cursor over a route leg until the letters RTE and the route soft keys are displayed then press FOLLOW ROUTE. Your vessels current position becomes the origin, and the target waypoint in the current route becomes the active target. The soft keys change as follows:
STOP FOLLOW EDIT ROUTE CLEAR ROUTE REVERSE ROUTE

D4251_1

These options are described in the following sections.
To follow the current route in reverse:
1. Press the ROUTE default soft key, followed by MORE. The route soft keys are displayed. 2. Press the REVERSE ROUTE soft key. The current route is reversed on the screen. Press ENTER or CLEAR. 3. Press the GOTO default soft key. The Goto/Follow soft keys are displayed. 4. Press the FOLLOW ROUTE soft key. The soft keys change as follows:
STOP FOLLOW GOTO CURSOR RESTART XTE WAYPOINT ADVANCE

D4172-1

These options are described in the following sections. Alternatively:
1. Place the cursor over the route leg until the letters RTE and the route soft keys are displayed. Press REVERSE ROUTE then FOLLOW ROUTE. Your vessels current position becomes the origin, and the target waypoint in the current route becomes the active target.

Target Point Arrival

The arrival alarm is used to alert you when the vessel is approaching the target point. The arrival alarm is defined as a circle (not visible on the screen) around the target. You can specify radius of the arrival alarm (see Section 6.3). The alarm is triggered when either of the following conditions is met: The distance to the target point is less than that specified for the arrival alarm. Your vessel reaches the closest point of approach to the target (defined by a line passing through the waypoint and perpendicular to the route leg).
To cancel the arrival alarm and go towards the next waypoint in the route, either press any key or wait for 10 seconds.

FOLLOW FROM HERE

The target becomes the origin, the next waypoint becomes the target point, and the two are connected by a dotted line indicating the current leg. Any previous route leg is removed from the screen, but waypoints remain. Note: When following a route using a SeaTalk autopilot, the autopilot will not turn to the new waypoint until it is accepted at the autopilot control unit.
Other Follow Route Options
You can use the soft keys to follow a route from a selected waypoint (join a route), or if already following, you can advance to the next waypoint. You can also restart the cross track error, setting the current vessel position as the new origin. In addition, you can move a selected waypoint as described in Section 5.3, or remove a waypoint from the route as described in Section 5.4.

5.7 Using Tracks

The Track function is used to mark on-screen the trail that your vessel has followed, as if it had left a visible fixed wake. While the track is switched on it is recorded in the display units memory. You specify the interval at which track points are made and a line is drawn onscreen between each point. Up to 4500 track points can be saved in total, in up to 5 track files (each a maximum of 750 points). The current track remains onscreen, even following a power off/on, until you clear the track. Breaks in the track will be caused when any of the following occur for longer than the specified track interval: the track is switched off then on; the position fix is lost; the display unit is switched off. To enable you to follow this track on your return voyage, the SmartRoute function converts the track (or the last segment of a track with breaks) into a route which is automatically reversed, see SmartRoute on page 5-42. A track can be saved and retrieved for display at a later date. You can only display one track at a time; you must clear a current track from the screen if you want to display a saved track. This section describes: Setting up a track, including how to specify the interval. Clearing the current track. Managing tracks, using the track list, including Saving, Naming, Erasing and Showing a track. Making a Track into a Route
To access the track controls:

Using Tracks

1. From the chart display, press the MENU key to display the chart set up soft keys.

D4162-1

2. Press the TRACK SETUP soft key to display the Track soft keys:
TRACKS OFF ON CLEAR TRACK

MAKE INTO ROUTE

D5674-1
The following instructions assume you have the track soft keys displayed.

Setting Up a Track

You use the track soft keys to switch the track on and to specify the interval, as time or distance, at which track points are saved. The time interval between track points can be set to 1s, 5s, 10s, 30s, 1min, 3min, 5min, 10min or 30minutes. The distance spacing between track points can be set to 0.1nm, 0.5nm or 1.0nm. The interval default is a distance of 0.1nm. The maximum track length is 750 points. When the track has reached this length, the first points are overwritten. The track is saved until you switch it off. When the unit is powered off, the current track (thus far) is retained in memory. Setting a short time interval between track points is best suited to navigation within a close or complex environment, e.g. an estuary or marina whereas, in contrast, a greater distance interval is best suited to a long haul voyage. Refer to the setting guide shown in Figure 5-9 to determine the best setting for your planned voyage; this is particularly important if you wish to use SmartRoute to convert your track to a route.

Naming, Erasing and Showing a Track
To name an existing track, erase a track or show a track, you select the track from the track list, then press the appropriate soft key as follows:
1. Press the TRACK LIST soft key. The Track List is displayed. The selection bar indicates the selected track. Select the required track then press the appropriate soft key. 2. If you NAME a track, use the trackpad to move the cursor right or left to the character you wish to edit. Then use the top or bottom of the trackpad to edit the letter or number. Press ENTER finish the operation or CLEAR to cancel the name, then ENTER to remove the track list. 3. If you ERASE a track you are prompted to confirm. Press NO to cancel the operation, then ENTER to remove the track list. Press YES to erase the track from the list, then ENTER to remove the track list. 4. If you SHOW a track, and you have a current track on screen, you are prompted to save the track. Proceed as previously described in Clearing the Current Track. Alternatively, press the NO soft key to cancel the SHOW TRACK operation. The track list is removed and the selected track is displayed. 5. Press ENTER or CLEAR to return to the default display.

NAME TRACK

ERASE TRACK

SHOW TRACK

4. If you do not wish to name or rename the track, press the NO soft key (or CLEAR) to clear the list. The track is saved and is listed as Track Not Named. If you wish to name the track press the YES soft key. Use the trackpad to move the cursor right or left to the character you wish to edit. Then use the top or bottom of the trackpadto increase or decrease the letter or number.

SmartRoute

SmartRoute enables the current track, or the last segment of a track with breaks, to be converted to a route (the track could have been retrieved from the track list). SmartRoute places a waypoint at the last track point, then considers each point in turn and determines the closest route through the recorded track. The number of waypoints created is minimized, whilst maintaining optimum correlation to the recorded track. On completion, the maximum deviation of the route from the recorded track is displayed.
To convert the current track into a route:
1. Select MAKE INTO ROUTE and press ENTER. The current track is converted to a new route and becomes the current route, with the most recently placed track point as the start of the route, i.e. the track is reversed. If there is an unsaved current route on screen, the option to save the route is given, see Section 5.4, Working with Routes. 2. Check the calculated route and, in particular, that the route deviation from the original, given in the warning box, is within navigable limits.

7. Connect the 8-way plug (4) to the connector (5). The correct fitting is with the small arrow marked on the body of the plug facing upwards and to the left hand side. The grey wire will then be at the left hand side and the white wire will be at the right hand side. 8. Connect the red +and black - power cores (6). Connect the red cable lead to one of the terminal sockets marked +, and the black cable lead to one of the sockets marked -. The terminal clamps (7) are operated using a screwdriver (8), as shown in the inset diagram on Figure 8-9. 9. Secure the nut (1) on the watertight gland, making sure that it grips the cables outer sheath. 10.Secure the cable with the top clamp (10), using the two screws (11) provided. Ensure that the clamp goes around the exposed wire braid, and that the wire braid makes contact with the earthing clamp. Tighten the screws until the top clamp deforms just enough to contact the lower earthing clamp (see inset).
CAUTION: It is essential that the drain tube is fitted and that the nut on the watertight gland is adequately tightened. If this is not done, water could become trapped in the scanner and cause irreparable damage.
11. Tighten the securing nut (1) again to ensure a waterproof seal. 12.Untie the cord from the scanner cover, and coil it up in the base of the scanner unit so that it cannot foul the rotating antenna. 13.Replace the scanner cover, aligning the mark on the cover with the mark on the scanner base above the cable gland, and tighten the 4 captive screws. Do not over-tighten these screws.
8.8 Mounting the Display Unit
The SL70 and SL70RC PLUS LCD display units are waterproof to CFR46 and can be installed either above or below deck. The display unit can be mounted using the mounting bracket supplied, or console mounted using the optional flush-mounting kit (see Section 8.2).

Mounting Bracket

The display unit can be mounted on a dash, chart table, bulkhead or deckhead.
Mounting the Display Unit
Figure 8-10: LCD Display Mounting
1. Loosen the knobs and remove the mounting bracket from the display unit. 2. Mark the locations of the mounting bracket screw holes on the mounting surface. 3. Use the screws supplied to attach the mounting bracket at the marked locations. 4. Attach the display unit to the mounting bracket, adjust the display angle and tighten the knobs.