Adding Navionics Platinum Support to E-Series High Performance Multifunction Navigation Displays (Instructions for Users with Mac Computers)
Welcome to the next dimension in marine navigation.Raymarine E-Series with Navionics Platinum multi-dimensional charts. This guide will take you step-by-step through the process of downloading the E-Series software from Raymarine.com, unpacking them, transferring the upgrade to a CompactFlash memory card, and then installing the update in your display. Before you get started, there are 2 pieces of hardware that are necessary to complete this process: A blank CompactFlash (CF) memory cartridge of 8 Megabytes capacity or larger. Raymarine recommends using San Disk brand CF cards with E-Series. Other brands may work for this process but San Disk cards offer the best performance with E-Series. A CF reader/writer device for your PC or Mac. This device will be used to copy the files downloaded from Raymarine.com to the CF card. The CF reader/writer could be an external device (e.g. connected by USB to your computer), or could be internal/built in. The CF reader should be installed according to the manufacturers instructions. If you need assistance choosing a CF card or reader/writer, please take a look at Answer ID 1042, Choosing Compact Flash Cards and Reader/Writers, in the Raymarine Knowledgebase. Point your browser to http://www.raymarine.com/support. Choose the Find Answers link, then enter 1042 into the search box and search by Answer ID.
Downloading the E-Series Update from Raymarine.com 1. Point your web browser to http://www.raymarine.com/platinum/. This will take you to the E-Series update page. 2. Click the link to download the software upgrade. The file you are downloading is named ESeries_v230.zip. Please save it to your desktop, or somewhere else where you can easily find it. Unpacking the Upgrade Files and Preparing the Upgrade Card 3. Use Stuffit Expander to decompress the ZIP package. Again, unpack it to somewhere you will easily be able to find the contents. 4. Inside the folder you will find 2 files, and a PDF version of these instructions. These 2 must be copied to the root of your upgrade CompactFlash memory card: i. Autorun.dob ii. E_App_Upg_230.pkg 5. Eject your CompactFlash memory card from your CF reader/writer according to the manufacturers instructions. The card is now ready for upgrading your E-Series display.

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Backing Up Existing Waypoint, Route and Track Data. NOTE: While this software upgrade is not intended to erase data stored in the ESeries internal memory, it is strongly recommended to perform a backup before upgrading software should anything interrupt the upgrade process. You can utilize the same CompactFlash memory card used to perform the software upgrade for backup, or you can use a different card if you wish.
6. Turn on your E-Series display. At the navigation disclaimer, press the OK key. 7. Insert the backup CompactFlash memory card into the E-Series card slot. 8. If not already in chartplotter mode, press the PAGE key, and select a page containing a chartplotter application. 9. Press the DATA key.

10. From the soft keys along the bottom of the screen press ARCHIVE AND TRANSFER. 11. Press the SAVE TO CARD soft key. 12. Press SAVE ALL to copy all of the units stored data to the Compact Flash card. 13. The data has now been backed up, and you may proceed with the software upgrade. Installing the Software Update into the E-Series Display 14. Turn off the power to your E-Series display unit, and remove any installed map cards. 15. Insert the Compact Flash Card containing the software update into the E-Series card slot.
If your data backup card and upgrade card are the same, it will already be in the slot from the previous backup procedure.
16. Turn on the power to the E-Series display unit. 17. The display will power up to a Software Update Utility screen like the one pictured below.

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18. In the left hand column the file named E80/120_App v2.30 should be highlighted. In the event it is not, please use the directional track pad to highlight it. 19. Press the soft key labeled UPGRADE THIS UNIT
20. You will see a progress meter appear as the upgrade is first transferred from the CF card to the E-series RAM memory, then a double line progress indicator as the update is flashed to the E-Series internal memory.
21. The upgrade process takes about 70 seconds. When the progress indicator disappears the update is complete. 22. Remove the update card from the card reader slot. 23. Press the REBOOT soft key. The display will restart automatically.
The E-Series display is now ready for normal operation. You can insert your Navionics Platinum or Gold chart card into the E-Series chart slot at any time. Be sure to read the Navionics Platinum Chart Card Users Guide, available for download on Raymarine.com, which explains how to access and use all of the new Platinum content. Restoring Waypoint, Route and Track Data

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In the unlikely event it is necessary to restore your data backup from your CompactFlash backup card, the following procedure will restore it to the E-Series memory. 24. Insert the backup CompactFlash card into the E-Series card slot. 25. Press the DATA key.
26. From the soft keys along the bottom of the screen press ARCHIVE AND TRANSFER. 27. Press the RETRIEVE FROM CARD soft key. 28. Press RETRIEVE ALL to copy all of the backup data to the E-Series memory. 29. The data has now been restored to the E-Series memory. You may remove the card by pressing MENU then REMOVE CF CARD. 30. You can then reinstall your map card and resume normal operation.

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Contents. at a known position... 55 Placing a man overboard marker.. 57 Changing a waypoint symbol... 57 Navigating to a waypoint.. 58.using the WAYPT button.. 58.using the cursor... 58.using the waypoints list... 58 Moving a waypoint... 58 Edit waypoint details... 59 Organizing waypoints.. 59 Deleting a waypoint or waypoint folder?.. 60 Waypoint recycle bin... 60 Transferring route and waypoint data.. 61 Working with routes..65 Introduction... 65 What is a route?... 65 Creating a route... 65 Add a waypoint to a route... 66.... 67 Deleting a waypoint.. 67.... 68 Choosing a route.... 68.... 68 Following route... 68 Monitoring the course.. 68 Using tides and currents..73 Introduction... 73 Setting the region... 73 Tides.... 74 Open nearest tides... 74
3 Currents.... 75 Open nearest currents... 75 Working with radar..77 Introduction... 77 Displaying radar in a new page... 77 The radar picture... 77 Changing how the radar picture is shown.. 78 Head - up (H-UP)... 78 North - up (N-UP).... 78 Course - up (C-UP)... 78 Getting the best radar picture.. 78 Gain... 78 FTC.... 79 Sea mode.... 79 Gain mode.... 79 Tune.... 79 Making targets clearer?... 80 Interference rejection... 80 Expansion... 80 Wakes.... 80 Setting up the radar display... 80 Short range scales... 80 Long range scales... 80 Changing the displayed range.. 81 Marking a position on-screen... 81 Using radar to help avoid a collision.. 81 Range rings... 81 VRMs/EBLs.... 82 Guard zones... 83 Placing a guard zone... 83
4 MARPA.... 84 Safety Notices.... 84 What is MARPA?... 84 Target and vector history... 85 Target history... 86 MARPA targets... 86 Working with sonar...89 Introduction... 89 The sonar screen... 89 Displaying sonar in a new page.. 89 Changing the screen view.. 89 Background color.... 89 Scrolling speed... 90 Target depth ID... 91 Improving the underwater view... 91 Changing the range... 91 Selecting the operating frequency.. 92 Making the picture clearer... 92 Gain mode... 92 Color gain mode... 93 TVG... 93 Getting a clear picture of the bottom.. 95 Getting a live image from below the boat.. 95 Isolating objects near the bottom.. 99 Getting a closer view... 99 Marking an on-screen position... 99 Measuring an objects depth and distance.. 101 Sonar alarms... 102 Shallow water alarm... 102 Deep water alarm... 102

The technical information contained within this manual, to the best of our knowledge, was correct at the time of printing. However, Raymarine cannot accept liability for any inaccuracies or omissions it may contain. In addition Raymarines policy of continuous product improvement may change specifications without notice. As a result Raymarine cannot accept liability for any differences between the product and the manual.

Product use

You may not use this product unless you agree to the terms and conditions of the license agreement. In accepting these terms and conditions, you agree to be bound by the terms of the license agreement and to release and hold Raymarine harmless from and against any and all claims, obligations and liabilities with respect to the product, except those specifically reserved in the license agreement. If you do not agree to the terms and conditions of the license agreement, you may return the program within thirty (30) days of the date of purchase by following the instructions contained within the license agreement.

Copyright

Under copyright laws use of this manual is intended for the original licensee. No portion of this manual may be reproduced or transmitted in any form by any means, electronic or mechanical, including photocopying, recording, or information storage and retrieval systems, for any purpose other than the licensees use, without the express written permission of Raymarine, and provided in the licensing agreement between you and Raymarine.
RayTech RNS V6.0 - Users Guide
Chapter 1: System overview and features

1.1 Introduction

This chapter introduces RayTech and covers the following: Whats in the box. System overview. Accessories The following accessories are available for RayTech: Component Navionics CF Chart Reader C-Map USB C-Card Reader SeaTalk to PC Interface

Part No.

1.2 What do I get in the box?
When you open the box containing RayTech, you will find various components, depending on which package you have purchased. RayTech V6.0 - Part No.E83040

Component

Raymarine Part No. E86026 E86008 E85001 E86023 E85005 E86001 81260-1
hsb2 PC (PCMCIA) Kit V6.0 hsb2 PC (USB) Kit V6.0 Serial data cable, DB-9 RayTech V6.0 Manual
RayTech CD-ROM with license key decal RayTech accessory list RayTech Users Manual Serial data cable, DB-9 Navionics CF Chart Reader
47001-2 47015-1 81260-1 E86001 E86026
If any of the components are missing, you should contact, in the first instance, the Raymarine dealer where you purchased your package, or Raymarine Customer Support, the details of which can be found in the Technical Support section of this handbook, on page 149.
RayTech RNS V6.0 - Users Guide finding performance making it an ideal choice for the serious sailor or fisherman.
The Navionics CF card reader has been designed and tested for home and dockside planning use only and has not been tested to marine standards for ruggedness or interference with other devices on board the vessel. Raymarine cannot accept responsibility or liability for any damage to the card reader, associated systems and equipment or compatibility issues arising from its use while underway. Subscription services Technical Support, comprehensive weather reporting and fishing updates require online registration and subscription at www.raymarine.com.

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Running RayTech for the first time
To run RayTech for the first time: 1. Select Start/Programs/Raymarine RayTech Navigator from the Windows task bar. RayTech will load and the RNS Startup Wizard is displayed. See Figure 3-1on page 16 2. Click the button next to the type of license key you want to enter. 3. Click Next. The on-screen keyboard appears. See Figure 3-2on page 16 For details of license key types refer to License keys on page 16. 4. Enter your license key using the on-screen keyboard by moving the cursor over the required number and clicking. 5. Click Finish. The dialog box closes, and the RayTech splashscreen appears. The splashscreen closes and the RayTech mode dialog box appears RayTech mode dialog box on page 17. You now have a choice of which mode RayTech opens in: Planning - Instrument connection is not required - see Click the soft key for the mode you want RayTech to open. on page 19. Onboard - enables you to configure your network settings.
Figure 3-3: RayTech mode dialog box
Figure 3-4: RNS Network Set up Wizard
RayTech RNS V6.0 - Users Guide 4. Click the button corresponding to whether the PC is currently connected to your onboard instruments. 5. Click Next. The following screen appears:
Configure network settings
IMPORTANT: If you do not choose SeaTalkhs, make sure you have the PC on which RayTech is running conected to your boats instruments the first time you run RayTech in Onboard mode. The instruments must alsobe switched ON.
Note: The following section shows how to configure a initializationinitializationSeaTalkhs network. To configure other types of network click the button next to the network type and follow the on-screen instructions.
To configure the network settings: 1. Follow Steps 1 through 6 of Starting to use RayTech on page 16. 2. Click Onboard. The RNS Network Setup Wizard appears - Figure 3-4on page 17. 3. Click the button next toSeaTalkhs (E-Series). The following screen appears:
6. Click the button next to the network card description youwish to use with RayTech. This card will be configured to talk to your E-Series display. 7. Click Finish. The RNSNetSetup dialog box appears.
19 original RayTech V3.0/V4.x/ or V5.0 license key. This should be entered in the same way as before using the on-screen keyboard that appears. Make sure the license key type is set to the correct version number. To display the license keyboard: 1. Select File/Setup. The Setup dialog box is displayed. 2. Double-click the License icon. The on-screen license entry keyboard is displayed. 3. Enter your license key as described inTo run RayTech for the first time: on page 17, Steps 7 through 9.

The RayTech chart installer is used for installing BSB formatted, raster, MapTech PCX, photo and topographic charts. It will search and locate charts that are installed on your system or a CD-ROM. To install charts using RayTech chart installer: 1. Insert the relevant chart CD into the CD-ROM drive. The New Charts dialog box is displayed.
3. Click Install. The progress of the installation of each chart will be shown. 4. The chart installer updates the chart list. 5. Click OK. The chart installer selection dialog box closes.
Title bar Drop-down menus Toolbars

Pathfinder panel

Databoxes

Application display area

Page selection tabs PC taskbar Power soft key

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Soft keys

RayTech default screen

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Chapter 4: The User Interface and controls

4.1 Introduction

This chapter introduces the RayTech User Interface and its features and covers: The User Interface. The Interface controls. This chapter gives only a brief overview of the interface and its controls, experiment, try pointing the cursor at different objects on the screen and click to see what will happen.
Application display - area of the screen in which an application is

displayed.

Page selection tabs - Click a tab to display the required page from

4.2 The screen

You may discover features of RayTech that you didnt know existed. Experimenting in this way will also help you to find your preferred way of using RayTech. To help you get started, left mouse clicks are used to select or initiate actions. Right mouse clicks display drop-down menus. Holding down the left mouse button and dragging the mouse diagonally will bound a chart area. Rotating the mouse wheel will make small setting adjustments or perform small range changes. When you open RayTech the default screen - see page 35- will appear containing:
those that are open. PC taskbar - accesses PC controls. Power key - press to turn radar transmit on or off. Press and hold to exit RayTech. Softkeys - used to select function identified by the on-screen label. The default screen and controls can be customized to your personal preferences. RayTech will retain these preferences and show them each time you open it. They can be changed at anytime without closing the program. With the exception of radar and sonar pages, each page and pane can be independently configured to suit your working practices.

You can show more than one application on a page. RayTech contains preset page options for displaying up to three applications on a page, each in a separate pane. There is also a custom option that allows you to split a page either horizontally or vertically and display a different application in each pane:
To open a pre-set page: 1. Select File/Open New Page. The Open New Page dialog box is displayed. 2. Click on the pre-set page layout required. 3. Click OK. The new page will open in the selected layout. To open new custom page: 1. Select File/Open New Page. The Open New Page dialog box is displayed. 2. Click Custom. 3. Click OK. A new blank page will open with the application icons displayed. 4. Double click the icon for the application you want to open. The application will open in a full page format. 5. Right click on the page status bar and select Split Horizontally/ Split Vertically. 6. Click the split style you require.
34 7. The open application will move to the bottom pane (horizontal split), or to the right hand pane (vertical split). The application icons will appear in the new pane. 8. Double click the required application icon to open it in the pane.
Moving around a split page
When you open a page that has been split you need to be able to activate a different pane within the page. The pane that you are working in is known as the active pane, and has a blue border around the edge of it. The softkeys displayed in the function bar are the top level softkeys for that application. To make another pane active within a page, click the ACTIVE button on the Pathfinder panel. The blue border will move to the next pane and the softkeys will change to the top level for that application. To change the active pane, just click the ACTIVE button until the application you want to work in is highlighted.

Boat icon

Cursor

Status bar

Cartographic information available Navigational object

Depth contour

Page tab

Default chart screen

Chapter 5: Using charts

5.1 Introduction

RayTech utilizes chart layering technology, which permits you to simultaneously view different types of charts and maps, including navigational charts, live radar, aerial photographs and weather data. For full information on installing charts refer to Chapter 2 - Getting Started. When connected to a heading data source you can also overlay the radar image on to the chart.

5.3 Opening a chart

To open a chart for the first time: 1. Click File/Open New Page. The open new page dialog box is displayed.

Use your charts safely

CAUTION: RayTech should not be used as a substitute for good navigational practice nor for official government charts. Until you are familiar with interpreting the chart display, you should take every opportunity to compare displayed objects with visual targets, such as buoys and coastal structures. You should practice harbor and coastal navigation during daylight and in clear weather conditions. RayTech simulator mode will also help you gain experience.

The aerial photograph covers navigable waters and up to 3 miles inland from the coast.

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Chapter 6: Using Platinum cartography The availability of these photos is shown by a camera symbol on the chart.
The symbol is placed where the photo was taken and the angle of the shot is shown by the angle of the camera symbol.To view a panoramic photo: 1. Right click on the camera icon and select Navionics Object Properties. The information dialog box appears. 2. Click Show Photo.The photo is shown in the dialog box.

Pilot book

The pilot book is an on-screen version of a nautical almanac and contains navigational information about ports and marinas.
To view the pilot book: 1. On a Navionics chart page, right-click the port services icon. The rightmouse menu is displayed. 2. Select Navionics Object Properties. The information dialog box is displayed.
Business services information
The updated business services information enables you to view information such as name, address, telephone number of selected businesses and information on places of interest by selecting an on-screen icon.
Service station Boat dealership Restaurant Hairdressers Bank

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3. Highlight the pilot book page reference. The Show Pilot Book soft key is displayed. 4. Click Show Pilot Book. The pilot book opens in a new page. Use the scroll bar at the right to scroll through the available information.

Doctors

To display business services: Select the appropriate symbol on the chart and right click. The information will be displayed in a dialog box.

Find nearest

The Find Nearest feature provides information to enable you to find the nearest:
6.3 2D chart enhancements
The enhancements to 2D charts include the following: Additional business services information. Additional wrecks data. Major coastal roads. US inland waterways.
Waypoint. Port or Port Services. Tides and currents station. Wrecks and obstructions. Business services.
To use the find nearest feature: In an area that is covered by a Navionics chart:
Chapter 6: Using Platinum cartography 1. Right-click anywhere on a Navionics chart page. The right-mouse menu is displayed. 2. Select Navionics Object properties. The Information dialog box is displayed. 3. Click Find Nearest. The find nearest selection box is displayed.
47 2. Select Navionics Object properties. The Information dialog box is displayed. 3. Click Search by Name. The on-screen keyboard is displayed. 4. Enter the name of the port you want to locate. 5. Click OK. The on-screen keyboard closes and the result(s) are displayed in the information dialog box.

10.4 Changing how the radar picture is shown
The radar picture can be shown in one of three modes:
10.5 Getting the best radar picture
You can get a clearer radar picture by minimizing the effects of false or multiple echoes and clarifying target presentation by using the softkeys/ controls accessed using the radar softkeys. The softkeys are: Gain. Targets. VRM/EBL. Presentation. Target Tracking.

Head - up (H-UP)

Head -up is the default mode. The radar picture is shown with the boats current heading upwards. As the heading changes the picture will rotate.

North - up (N-UP)

In this mode, the radar picture is stabilized and shown with North at the top of the picture. As your boat changes its heading, the SHM will move accordingly.This mode requires heading data input.

Course - up (C-UP)

In this mode the radar picture is stabilized and shown with your current course upwards. As your boats heading changes, the SHM moves accordingly.This mode requires heading data input. If you select a new course, the picture will reset to display the new course upwards. The reference used for Course-up depends upon the information available from the following: Bearing from origin to destination, i.e. intended course. Used if a FOLLOW or GOTO is active. Locked heading from an autopilot. Used if autopilot is engaged, but no FOLLOW or GOTO is active. Instantaneous heading. Used if neither of the above is valid, the system now reassesses the course every 5o.
The effects of false echoes and clutter can be reduced by using the GAIN soft key and its associated controls to make the overall picture clearer. The AUTO settings usually give the best results although you can adjust these settings if required. If you use manual settings they are retained when the radar is set to standby or if you exit RayTech. The gain functions are: FTC Mode. Rain Mode. Sea Mode. Gain Mode. Tune.
To change the way in which the picture is shown: 1. Click Presentation on the soft key bar. 2. Click Radar Heading until the desired mode has been selected.

VRMs/EBLs.

A variable range marker (VRM) and its associated electronic bearing line (EBL) is used to determine the range and bearing (respectively) of objects detected by the radar. A standard VRM is displayed as a circle with its center on your boats position, and its EBL is displayed as a line from the origin, to the edge of the radar screen. Both are shown as dotted lines. If you range in or out, or offset the center of the display, the original setting of the VRM/EBL remains unchanged. RayTech allows two VRMs/EBLs to be displayed at the same time. When a VRM/EBL pair is active, their bearing and range can be displayed in an associated databox. This is displayed by clicking the VRM/EBL Box soft key to ON.

Using VRM/EBLs

To measure the range and/or bearing of a target or point from your boats position, you need to display a VRM/EBL and edit (move) it on- screen so that it intersects the desired target or point.

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The first VRM/EBL will be placed at a location 1/3 of the current range and 0300 relative to your boats head. If this setting is adjusted, the display will retain the adjustments and use them when the VRM/EBL is next turned on.
To use a VRM/EBL to tell you how far away a target is and in what direction it is traveling: 1. Click the VRM/EBL soft key. The soft key options for VRM/EBL 1 will be displayed. 2. Click the VRM/EBL 1 soft key to ON. The VRM/EBL will be shown on the radar picture with your boat at its center. 3. Click the Adjust VRM 1 soft key. The on-screen VRM will change from a dotted to a solid line. 4. Use the cursor to adjust the VRM to its required size. 5. Click to return the VRM to a dotted line and retain the adjustment. 6. Click the Adjust EBL 1 soft key. The on-screen EBL will change from a dotted to a solid line. 7. Use the cursor to place the EBL over the required target.

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Chapter 10: Working with radar 8. Click to return the EBL to a dotted line and retain the adjustment.
83 Guard zones enable you to set up one or two sector or 360o zones around your boat. Any target entering this zoned area will cause a guard alarm to sound. Guard zones are fixed with respect to the ships heading marker (SHM, moving as the SHM moves. They also move if you offset the center, or if you change the range scale, so that the area you have marked is maintained. However, a guard zone only operates when the whole zone is displayed on the screen, or could be displayed by off-setting the center. In addition, a guard zone is inactive for 10 seconds after it is placed or resized, to avoid inappropriate alarms during positioning.

Figure 13-1: Internet weather dialog box
Figure 13-2: Select region dialog box
4. Scroll down and highlight the required region. 5. Click OK. The region list closes. 6. In the region dialog box, click Get Weather. The download information box is displayed.

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113 2. Click the Advanced action box. The Advanced weather dialog box is displayed. 3. Click the action boxes to set your required preferences.
7. The download completes and the GRIB received information box is displayed.

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8. Click OK. The weather information is displayed on the chart
Getting weather information using e-mail
To get weather information using e-mail: 1. Select File/Get Weather from Internet. The Get Weather dialog box is displayed.
4. Click the Position report send to action box. The on-screen keyboard is displayed. 5. Enter the e-mail address that you want the weather reports sent to for access into RayTech. 6. Click OK. The keyboard closes. 7. Click Position Rpt Boat Name. The on-screen keyboard is displayed. 8. Enter your boats name. 9. Click OK. The keyboard closes.
114 When the requested weather file is received into your inbox, the Weather update information box is displayed.

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10. Click Send Now. The RayGetGRIB information box is displayed.

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Animating weather files
To animate a weather file: 1. Select View/Animation Toolbar. The animation toolbar is displayed.

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11. Click OK. The weather information is displayed on the chart.

Start time

Finish time

Viewing a weather file

To view a downloaded weather file: 1. Select View/Weather Toolbar. The weather toolbar will be displayed. 2. Click on the features that you want to display. These are displayed on screen as you select them. 3. Adjust the chart range as necessary to see the weather in the required area.
a - Rewind b - Play C - Fast forward d - Next track e - Pause

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2. Click the arrow at the right of the Start time box. A drop-down menu is displayed. 3. Select the time you want the animation to start, this is typically the start of the GRIB file. 4. Click the arrow at the right of the Finish time box. A drop-down menu is displayed, this is typically the end of the GRIB file. 5. Select the time you want the animation to end. 6. Click to set the speed you want the animation played. The further to the right you move the selector, the faster the animation is played. 7. Click the arrow at the right of the Date box. A drop-down menu is displayed. 8. Select the date of the animation to be played.

Data collection

The accuracy of any analysis presented by the polars tool is dependent on the volume and accuracy of the data collected. There are two primary areas within the polars application where you can enter and modify data: The Polar tab - this displays the polar parameters screen, which contains variables/ values used to plot the polar graph.

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RayTech RNS V6.0 - Users Guide The definitions for the cells in the table are: Tws Bsp00 TwaUp BspUp Twa1 Bsp1 Twa2 Bsp2

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True wind speed - in knots Boat speed in knots at zero degrees (sailing directly into the wind) True wind angle Upwind - in degrees Boat speed Upwind - in knots True wind angle - in degrees (first variable) Boat speed - in knots (first variable) True wind angle -in degrees (second variable) Boat speed - in knots (second variable) True wind angle Downwind - in degrees Boat speed Downwind - in knots Boat speed - in knots - at 180 degrees (sailing directly with the wind).

TwaDn BspDn Bsp180

To load an existing polar parameters file: i. Click Open in the polar parameters box. The open file dialog box is displayed. ii. Choose the polar parameters file (.rpl extension) that you want to open. iii. Click Open. The selected file will be displayed. 3. To edit individual values: i. Click on the cell that you want to modify. The value is highlighted. ii. Enter a new value, click outside of the cell. The new value will be accepted. iii. Repeat Steps i and ii for each value you want to change.
4. If you want to view data without saving it, go to Step 5. If you want to save the data that has been entered either: 5. Click Save. The file will be saved under the current file name, or, 6. Click Save As, if you want to create and name a new polar variables file. 7. Click Apply to use the new variables in the polar plot. 8. Click the Polar Plot tab to view the new data graph.

Data test

To edit the data test parameters: 1. Click Data tab in the Polar Plot dialog box. The Data test screen will be displayed. This screen will initially contain a single row of test data; however, you can store and edit as many different test data rows as you need, each row represents a unique run and its associated performance statistics. Test Date Quality Notes Mainsail Headsail Awa Aws Twa Twd CorTwa CorTws CorTwd

< = Quality Displays only those tests having a quality factor less than or Factor equal to the value entered. From/To Displays only those tests corresponding to dates entered.
6. After completing data entries, Click OK. ReTurns to the data test screen.
Graphing and reading a polar plot
The polar plot screen graphs the theoretical headings your boat should take towards specified targets (both upwind and down wind) when encountering various wind conditions. The accuracy of these graphs depends primarily on the volume and accuracy of the boat and weather specific information that you have entered into the polar parameters and data test screens. Information that has been entered will be displayed as a polar graph in the polar plot screen. Placing the cursor in any position along the polar plot opens a small pop-up pane that displays the wind angle/boat speed correlation at that point.

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To graph a polar plot: 1. Enter all the requisite detail into the polar parameters and data test screens as described in the previous sections. 2. Click Polar tab. The Polar Plot screen is displayed. 3. Select the required boat speed scale by clicking on the up/down arrows, or entering the numbers direct. 4. Select the range of True Wind Speed to be plotted by clicking on the up/down arrows, or entering the numbers direct.
RayTech RNS V6.0 - Users Guide entered in the polar parameters screen. These lines are displayed in blue. The lines that diverge between 30o and 50o, and 130o and 160o, represent the Target Twa upwind (5) and downwind (6). These lines are displayed in blue. The line that scribes a semi-circle, plots the optimum heading (7) and resultant speed relative to the Tws range you enter at the bottom of the screen. As the Tws range is increased, additional lines are plotted onto the graph, showing the heading you should take to make optimum progress as wind speed increases. These lines are displayed in black. The co-ordinate pop-up (8) shows the current boat speed and heading, as entered into the data test screen.
Upwind, downwind and Vmc plot screens
The upwind, downwind and Velocity Made good on Course (Vmc) screens enable you to directly analyze those aspects of the polar plot by reducing the displayed information to only those elements. Upwind plot The upwind plot screen calculates the best angle and boat speed when sailing upwind and displays: Velocity Made Good (VMG) relative to Twa. Click Vmg to view, then select Tws range to plot by clicking on the Tws (kts)) up/down arrows or entering the numbers direct. Boat speed relative to Tws. Click Bsp to view. True wind angle relative to Tws. Click Twa to view.

Identifying false echo returns
Not all echoes are direct reTurns to the radar antenna. Occasionally signals appear at positions where there is no actual target. These are called false echoes, and may be caused by side lobes, ghost images, indirect echoes or multiple echoes. This section briefly describes the echo patterns that can be produced by false echoes and the likely cause. It should be noted that the radar operator, through observation, practice, and experience, can generally detect these conditions very quickly. These effects can usually be minimized using the radar controls.
Side lobes Indirect echoes

Main lobe

Side lobe
There are several types of indirect echoes or ghost images. These sometimes have the appearance of true echoes, but in general they are intermittent and poorly defined.

True echo True echo

Antenna

False echo

Passing ship
Arc True echo Side echoes

D7051_1

Mast or funnel

Multiple echoes

Multiple echoes are not very common but can occur if there is a large target with a wide vertical surface at a comparatively short range. The transmitted signal will be reflected back and forth between the target and your own boat, resulting in multiple echoes, displayed beyond the range of the true target echo, but on the same bearing.
Side lobe patterns are produced by small amounts of energy from the transmitted pulses that are radiated outside the narrow main beam. The effects of side lobes are most noticeable with targets at short ranges (normally below 3nm), and in particular with larger objects. Side lobe echoes form either arcs on the radar screen similar to range rings, or a series of echoes forming a broken arc.

D7052_1

Sea clutter

True echo

D1642-1
Blind sectors or shadow effect
Obstructions such as funnels and masts near the radar antenna may obstruct the radar beam and cause radar shadows or blind sectors. If the obstruction is relatively narrow, there will be a reduction of the beam intensity, though not necessarily a complete cut-off. However, for wider obstructions there may be a total loss of signal in the shadow area. There may also be multiple echoes which extend beyond the obstruction. Blind sector effects can normally be minimized by careful selection of the scanner site prior to installation.