1. 1 GPSMAP 182C Level 3 and 4 American Sailing Institute Level 3/4 instruction Prepared by Sherri Gregory Most illustrations copied from the 182/182C/232 Owners Manual and Reference Guide Ver. 4 4 10

2. 2 Unit Care Unit is waterproof (30 minutes/1 meter). After submersion dry unit. Temperature range is 5-158 degrees F. Do not leave in hot car. Clean glass with eyeglass lens cleaner specified as safe for anti-reflective coatings. Use a clean, lint free cloth. Clean plastic with a mild detergent only. Take unit below when leaving boat to prevent theft and cover when not in use.

3. 3 Data Chip If unit is not working check to make sure that data chip (lower right on unit) is in place. Check this before reporting unit problems.

4. 4 GPSmap 182 Keyboard

5. 5 Turning Unit on and OFF

6. 6 Simulator Mode

7. 7 Backlight setting

8. 8 Main Pages These five pages are always available. Access them by pressing the PAGE key to go forward, and QUIT to go backwards. Each page has an options menu available by pressing MENU. (The “pages” tab from the main menu allows you to hide any of these.)

9. 9 Main Menu Access at any time by pressing menu key twice Provides access to most of the important functions such as waypoints, routes, system, and navigation To select a Menu tab from the Main Menu: Press Rocker to highlight a tab Press Rocker to right to select from the choices Press Rocker up or down to select an individual item. To Select submenu options press MENU To Make changes to highlighted item press ENTER Press Rock to left to go back to the Main Menu tab list. To return to the Main Menu press QUIT

10. 10 Check or Change initial settings From Main Menu (Highlight and press enter to change) Heading: Magnetic or True (Units tab) Nautical/Statute (Units tab) Depth: Feet/fathoms/meters (Units Tab) Off Course also known as Cross Track Error (Alarm => Nav tab)

11. 11 MAP PAGE Contains chart and data fields Pressing “menu” from Map page allows you to: –Change from full screen map to screen with data fields –Change contents and number of data fields –Measure distances –Turn Declutter On/Off –Access several other options via “Set Up Map” (see next slide for some of these)

12. 12 Set Up Map options (also accessed from Main Menu – Map Tab) Change orientation North Up/Track Up/Course Up (General tab) Change Level of Detail (General tab) View and select/deselect Charts (Source tab) Change Size of Waypoints (Waypoints tab) Size of Navaids (Navaids tab) Display Heading Line/Bearing Line/Course Line (Nav Line tab) Change text size and zoom range (Different tabs depending on item)

13. 13 Map Pointer/Cursor

14. 14 Map Page Latitude and Longitude displays When the pointer is present on the map page, a special window is opened showing the lat and log of the pointer, along with the distance and bearing from your current position to the pointer. Your current position in lat and long can be seen on one of the optional data fields displayed on the map and other pages. Boat position (optional) Pointer position

15. 15 Zoom Range

16. 16 Compass page This is not a true compass. It only works when you are moving. Your track is shown at the top of the ring. The pointer is the bearing to your destination. If the arrow points up you are moving toward your destination. To use for navigation, travel in the direction of the arrow.

17. 17 WAYPOINTS Waypoints are specific locations that to use on your journey. They can indicate points along a route as well as your destination. They can also indicate an obstruction or other danger point.

18. 18 Two ways to create a Waypoint Using the map page to point to the desired location of a waypoint. Directly from the waypoint page –Editing an existing waypoint –Creating a waypoint at the current location and editing it (Press Enter/Mark until the “New Waypoint” window appears)

19. 19 Creating Waypoints Using the Map Page Use rocker to move cursor as close as possible to the desired location Press and release the Enter/Mark key (do not hold it down as that will enter your present position). Highlight “Create Wpt” and press Enter/Mark Use rocker to edit fields (see next slide) Highlight OK at the bottom and Enter/Mark to finish.

20. 20 Editing Waypoint information (Procedure is the same as the GPS 72 units) Press the rocker to highlight the name or location field. Press Enter/Mark key to highlight individual characters. Press the rocker up/down to change a character. Press the rocker right/left to move to another character. Press Enter/Mark to highlight the entire field. Repeat the previous steps for each desired field Highlight the OK field and press Enter/Mark to save. Tip: The Enter/Mark key toggles between highlighting the field, and highlighting a character in the current field.

21. 21 Working with Existing Waypoints

22. 22 Setting a Man Overboard waypoint Press the MOB key to activate the MOB function To store the MOB waypoint and begin immediate navigation press Enter/Mark To stop MOB navigation, press the NAV key and choose “Stop Navigation”. Once navigation is cancelled the MOB waypoint can be deleted from the waypoint list.

23. 23 Proximity Waypoints Proximity waypoints are accessed from the main menu Points =>Proximity tab They let you define an alarm circle around a stored waypoint You can select the radius of the circle.

24. 24 Adding a Proximity Waypoint Highlight an empty space on the proximity waypoint list Press Enter/Mark From the Find menu select Waypoints Select a Waypoint using the By Name or Nearest tab list Press Enter/Mark to edit the Distance field to indicate the proximity radius Press Enter/Mark when complete. Turn on or off the proximity alarm by highlighting the field below “Proximity alarm” and pressing Enter/Mark to select on or off.

25. 25 Find Key The Find Key can be used to find waypoints, navaids and other map items. If you press Find while the cursor is on the map page the unit will attempt to find items close to the cursor. If you press Find on other pages the unit will attempt to find items close to your location. For waypoints, you can choose a list ordered by Name (or you can search for a name) or Nearest (to the current or selected location).

26. 26 Navigation

27. 27 Useful (but sometimes confusing) data fields used for navigation Bearing – Compass direction from your current location to a destination point Track – Course the boat has been sailing over ground or COG. Course – Desired path of travel from the point navigation is initiated to your destination waypoint (also referred to as rhumb line) Heading – There is no GPS readout for your heading which is the compass course you are steering. GPS doesn’t know or care where your boat is pointed – only where it is actually going. Robert Sweet, the Weekend Navigator pg 101

28. 28 Destination Start A course has been established from start to destination (compass directions are for illustration only). North is up. Course = 320 Track = 350 Bearing = 275 To Course = 210

29. 29 Three methods of establishing a route Create a fixed route to follow –Use for planning or if your route contains multiple waypoints –Use if there are obstacles you need to avoid between your current location and destination. Using a “Go To” –Use when your current location is the starting point and the course is straight with no obstacles nearby –Easy to use (Accessed from Nav key) Follow an existing track (TracBack) Note: Your map page may show your initial course or bearing to your destination or both. Check your settings.

30. 30 Nav Key

31. 31 “Go To” Cautions Stay on your initial course if obstacles are in the area If necessary set the Proximity alarm on obstacles Know your position and track by plotting fixes on your paper chart at regular intervals. If your bearing (direction to your destination) changes check your chart to make sure that your current bearing will take you safely to your destination.

32. 32 Creating a fixed Route using the map page to point to waypoints From the Main Menu highlight “Route” tab. Press the Menu key and highlight “New Route” and press Enter/Mark. The map page will appear. Place the cursor on the first waypoint to include on your route and press Enter/Mark. Move the cursor to the next waypoint and repeat until your route is completed. If you select a location that is not an existing waypoint, a waypoint screen appears. Press Enter/Mark to create a new waypoint and continue. When your route is complete, press Quit. (Press Quit a second time to return to the route page list.)

33. 33 Creating a fixed Route selecting waypoints off a waypoint list From the Main Menu highlight “Route” tab. Press the Menu key and highlight “New Route” and press Enter/Mark. The map page will appear. Press the Menu key and press Enter/Mark to Edit as Text. Highlight the first field and press Enter/Mark Highlight Waypoints and press Enter/Mark Select the waypoint you want to use, locating it using the By Name or Nearest tab or by spelling out the waypoint name using the text editor. Press Enter/Mark after your waypoint is selected and move to the next spot to enter the next waypoint.

34. 34 Activating and deactivating a route Activating: –Press the Nav Key, Select “Go to Point”, “Follow Track” or “Follow Route” and then select the waypoint, track or route. –Highlight a waypoint, track or route to follow, then press the Nav Key and press Enter/Mark to activate that route. Deactivating: –Press the Nav Key and Select “Stop Navigation”

35. 35 Deleting a Waypoint or Route Highlight a Waypoint or Route name and press Menu (for example from the Main menu Waypoint or Route tab) Highlight the delete option and press Enter/Mark once to delete and press Enter/Mark again to confirm.

36. 36 Using GPS with Paper Charts

37. 37 Some reasons Some GPS units don’t include charts Battery/power source unavailable Overlapping charts, missing expected charts Other GPS malfunction Paper chart provides the big view and detail at the same time. You could have programmed your GPS incorrectly You could misinterpret your GPS data.

38. 38 Establish waypoints and routes including danger points and enter them on your GPS. (If using your own GPS, it’s easiest to enter them on your computer and then download) –Use short meaningful names –Make a list of waypoints with name, lat, long and description of location Draw your route on your paper chart including hourly projected DR plots based on your estimated speed and time of departure. Indicate your waypoints on your paper chart as shown below. Planning – GPS and Paper Charts X -Waypoint symbol/name used on paper chart (USPS) (Symbol is omitted if waypoint is also a nav aid) SC01

39. 39 Underway – GPS and Paper Charts Each hour use your GPS to determine your location and plot this fix on your paper chart (see plotting conventions below). Occasionally take compass bearings and GPS fixes simultaneously to test your ability to take compass bearings and check your GPS if you suspect a problem. 2045 GPS - GPS fix plotted on a paper chart (USPS) X SC01 - GPS fix plotted on a waypoint 2045 GPS

40. 40 Underway – GPS and DR plots Example using 1 hour intervals beginning at 0800 Use the paper chart containing your route and projected DR plots. When you begin your trip, indicate 0800 on your paper chart at your starting point. Plot your expected position at 0900 using DR based on your actual speed. At 0900 mark your position using your GPS and plot it on your chart (GPS fix). See previous page for plotting conventions. Use this GPS fix as the starting point for your next hourly DR plot, extending your course line in your intended direction, and showing your expected position at 1000. Continue to plot GPS fixes and extend your DR plots every hour. If you pass a buoy, or other navigation aid which can serve as a fix, plot that fix (with time) on your chart. If your course needs to be adjusted, use that fix as the starting point of your next DR plot.