User manual RAYMARINE RAYTECH 4.0

[. . . ] Distributed by 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. USER'S GUIDE Documentt No. . 81207_1 Documen No 81207_1 Febrruarry 2002 Feb ua y 2002 RayTech Navigator 4. 0 Raymariine, , Inc. . Lauderdallle Engiiineeriiing Diiiviiisiiion Ft. [. . . ] You can select long, medium or short wakes, which retain information from previous scans at a reduced video level. You can clear existing wakes from the display by clicking the Clear Wakes Functionbar button. When wakes are switched off, no new wakes are displayed and existing wakes are cleared. Measuring Range and Bearing Using VRM/EBL The Pathfinder Plus Radar display allows you to specify up to two Electronic Bearing Lines (EBL)s each with an associated Variable Range Marker (VRM), using the VRM/EBL button on the Pathfinder Panel. A standard VRM is displayed as a circle with its center on your vessel's position, and its EBL is displayed as a line from the origin to the edge of the radar picture display (Figure 5-8). Figure 5-8. Radar VRM/EBL Display 5-21 RayTech Navigator User's Guide Note: When using VRM/EBL, you may want to turn off the range rings to make the VRMs clearer. To do this, use the Color control in the Control Panel to change the color of the range rings to the same color as the background. When a VRM/EBL pair is active, its bearing and range are displayed in its associated data box, which can be moved, deleted or reinstated. VRMs move if you change the range scale, so that the actual range you have marked is maintained. VRM/EBLs also move if you offset the center. The bearing information is displayed as either the bearing relative to your vessels heading or (if heading data is available from a position fixer or compass) the actual bearing in degrees magnetic or degrees true. These are controlled by the setup parameters. The VRM/EBL functions allow you to perform the following tasks: · Measure the range of a target or point from your vessel's position, using a VRM. · Measure the bearing of a target or point from your vessel's position, using an EBL. Note: Range and bearing measurements are displayed in the Data box. You can determine the range and bearing by moving the cur-sor over the target and checking the Data Box readings. You can also estimate the range to a target by reference to the range rings. 5-22 Advanced Navigator Functions Measuring Range and Bearing to Target from Vessel To measure the range and/or bearing of a target or point from your vessels position, you need to place a VRM/EBL and move it so that it crosses the target or point for which you require the bearing or range. When you turn on a VRM/EBL, it is displayed in its last-used position. Note: If the VRMs last-used position is outside the radar picture at the current range setting, it is placed at its default position instead. This is one third of the range for VRM1, and two-thirds for VRM2. Using VRM/EBL To access VRM/EBLs: 1. Click the VRM/EBL button on the Pathfinder Panel. Click the button that corresponds with the action you want: Click: VRM/EBL On/Off 2. To: Display VRM/EBL in its last-used position/Remove the VRM/EBL from the radar display. Modify the selected VRM/EBL combination. Display/Remove Databox. Edit VRM/EBL Edit VRM Edit EBL Databox On/Off 3. Click Databox On/Off to display range and bearing. 5-23 RayTech Navigator User's Guide Moving a VRM/EBL You can control VRM/EBL separately or together. Click the VRM/EBL button on the Pathfinder Panel. Click the button that corresponds to what you want to modify: VRM/EBL 1 or VRM/EBL 2. [. . . ] Standard intervals range between 1 and 24 hours. In the Boat name field, enter the name, call sign, or other identification for your vessel. Send a position report immediately by clicking the Send Now button. For the automated position (and weather) functions to operate, you leave the Internet Weather application and your e-mail client open. [. . . ]