User manual GARMIN GMR 40

[. . . ] Marine Radar GMR 20/40 Owner's Manual © Copyright 2005 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U. S. A. 913/397. 8200 or 800/800. 1020 Fax 913/397. 8282 Garmin (Europe) Ltd. [. . . ] Using the ARROW KEYPAD, highlight Move and press the ENTER key. Using the ARROW KEYPAD, move the center point of the VRM to the desired location. Press the ENTER key to set the new location. To move the center location of the VRM: Acquiring Target Target is Safe To use the VRM/EBL, expand the diameter of the VRM so that the outer edge touches the target. Rotate the EBL until it intersects the VRM at the target location. The measured range and bearing are displayed in the lower left corner of the screen. The Mini Automatic Radar Plotting Aid or MARPA function is used to aid in collision avoidance. MARPA can track up to ten designated targets. Detailed information including Bearing, Range, Course, Speed, Closest Point of Approach, and Time to Closest Point of Approach for each target is displayed in the MARPA list. Note: The MARPA function requires the use of a heading sensor. The heading sensor must output the NMEA sentence HDM or HDG at format 0183, v2. 30 or higher. Target is Dangerous MARPA Lost Target For each target, a number and Vector Line is displayed with the symbol. The Vector Line is a visual reference of the target's course and speed. Using the ARROW KEYPAD, highlight Acquire Target and press the ENTER key. On the Radar page, using the ARROW KEYPAD, move the pointer to the desired target and press the ENTER key. MARPA relies on a Heading Sensor to provide accurate own vessel heading information. Accurate heading data enhances MARPA's performance. Each target being tracked by MARPA is represented by a symbol. The symbols indicate the current state of the target. GMR 20/40 Owner's Manual continued 11 GMR 20/40 OPERATION > THE RADAR ADJUSTMENT MENU While a target is being designated, a box is placed around the target. When MARPA begins tracking the target, the box is replaced with the appropriate symbol. To display the MARPA List: Using the ARROW KEYPAD, highlight MARPA List and press the ENTER key. Acquiring Target Tracking Target MARPA List MARPA Setup The MARPA Setup Menu contains settings for Vector Length, Target History, Own Vessel Safe Zone, Tine To Safe Zone, Safe Ring Zone, and Velocity Reference. To display the MARPA Setup Menu: Using the ARROW KEYPAD, highlight MARPA Setup and press the ENTER key. 12 GMR 20/40 Owner's GMR 20/40 OPERATION > THE RADAR ADJUSTMENT MENU Own Vessel Safe Zone--is a circular area defined by a range setting that is centered on your own vessel. If a target enters the defined area an alarm is sounded. The Safe Zone can be set to a distance between . 01 and 2 nautical miles. Time To Safe Zone--sounds an alarm if MARPA determines that a target will intersect the Own Vessel Safe Zone within the defined time interval. The time interval settings range from 3 to 24 minutes. MARPA Setup Menu Safe Zone Ring--displays a ring on the Radar page depicting the Own Vessel Safe Zone. Velocity Reference--has two settings, Absolute and Relative. [. . . ] To obtain warranty service, an original or copy of the sales receipt from the original retailer is required. Garmin will not replace missing components from any package purchased through an online auction. Note: The GMR 20/40 does not contain any user-serviceable parts. Repairs should only be made by an authorized Garmin service center. Unauthorized repairs or modifications could result in permanent damage to the equipment, and void your warranty. Garmin International, Inc. [. . . ]