User manual MAGELLAN SPORTRAK COLOR 2

[. . . ] Reference Waypoints / Database Accessing Waypoints in the Database -- All stored waypoints, whether user-input or preloaded, can be found in the Waypoint Database. You will need to access waypoints in the database whenever you are editing waypoints, activating a GOTO route or creating a multileg route. From Any Screen Highlight Database Use up/down arrows to select category Use left/right arrows to select "Find By" Selecting Waypoints from the Nearest List. If Near Position, N ear C ity or Near C ursor is selected as the "Find By" option for the database or if User was selected as the category, you will be presented with a list of waypoints that you can choose from. The information at the bottom of the screen indicates the bearing and distance to the highlighted waypoint from your present position. Use up/down arrows to highlight waypoint Selecting Waypoints from the Alphabetical List. [. . . ] Ho w muc h it mo ves depends on t he speed of t he boat and t he f orce of t he curr ent. In this e xam ple, t he r esulting C OG or dir ection of tr avel is 1 5°. nt rre Cu Heading COG 0° 15° 68 SporTrak Color GPS M apping R eceiver Appendix People hiking or w alking w ould normall y see t he heading and C OG being t he same wit h the SporT rak Color pointing dir ectl y ahead. Ho we ver , wit h the r eceiv er held at a slight angle, lef t or r ight, y ou can see t hat t he heading displa yed will dif fer fr om t he displa yed COG. The ke y point t o r emember is while y ou ar e mo ving, C OG is the true indication of y our direction of tr avel. C OG is displa yed onl y while y ou ar e mo ving at a com puted speed of 0. 5 miles or f as ter . Bearing Bear ing is sim ply the dir ection y ou need t o tr avel t o arr ive at your des tination. Using t he same diag ram as bef ore, a des tination t o a f ishing spo t has been added. The bear ing displa yed t hen indicat es the dir ection t hat y ou w ould need t o tr avel t o arr ive at t he fishing spot. Bear ing will be displa other r out e activ e. yed onl y when y ou ha ve a GO T or O Bearing 310° Heading COG 0° 15° Cu rre nt Putting it A Together ll With bear ing and C OG com puted, t he SporT rak Color can no w pr ovide y ou wit h t he precise inf ormation y ou need t o arr ive at y our des tination in t he shor tes t time. In t he abo ve e xam ple t he SporT rak Color w ould com pute t hat y ou need t o turn 65 ° to g e t to your f ishing spo t. (Remember , since C OG is your true heading, t he angle y ou need t o turn is t he dif fer ence be tween C OG and bear ing, no t heading and bear ing. ) As soon as y ou mak e t his turn, t he f orce of t he curr ent on y our boat w ould c hang e. This would also c hang e ho w muc h dif fer ence t her e is be tween y our heading and C OG. The SporTrak Color continuall y updat es t his inf ormation giving y ou t he e xact turn inf ormation y ou will need t o arr ive at y our des tination. Alwaysr emember : · · · Heading is t he dir ection t hat t he SporT rak Color is pointing and is displa the time. yed all Course Ov er Gr ound (C OG) is t he dir ection t hat y ou ar e tr avelling o ver t he ground. C OG is displa yed onl y while y ou ar e mo ving. Bear ing is t he dir ection t o t he des tination of a GO T or leg of a r out e. Bear ing is O displa yed onl y when a GO T or r out e is activ e. O SporTrak Color GPS M apping R eceiver 69 Appendix Navigating with the Compass Screen When y ou ar e using t he Com pass Scr een t o s teer t o a des tination, y our goal is t o align t he Des tination P oint er and t he C OG Point er t og e ther . When bo th of t hese point er s ar e lined up, reg ardless of y our heading, y ou ar e mo ving in a s traight line t o your des tination. Here t he Des tination P oint er and t he C OG Point er nearl y line up e xactl y and w e ar e mo ving in a s traight line t o t he des tination. Note: The Destination Pointer points to North and the Destination Icon disappears when you do not have an active route or GOTO. Calibrating the Compass The electr onic com pass r eq uires t hat it is r ecalibr ated every time y ou c hang e t he batt er ies. [. . . ] The datum for the map you are using can be found in the legend of the map. If you are unsure of which datum to use, use WGS84. The value or setting automatically chosen by the unit unless otherwise directed. The estimated time of day the leg's destination waypoint will be reached. [. . . ]