Owners Manual
Page 3
... i This manual is divided into two parts for the GPSMAP 188, GPSMAP 188C (color), and GPSMAP 232. This section will be sure to create an unsurpassed marine navigation chartplotters. Have the serial number of the most out of Garmin GPS and full featured mapping to record your unit. The Garmin GPSMAP® 188/188C/238 Sounders utilize the proven performance of your new navigation system, take the time to go through this manual. ) NOTE...
... i This manual is divided into two parts for the GPSMAP 188, GPSMAP 188C (color), and GPSMAP 232. This section will be sure to create an unsurpassed marine navigation chartplotters. Have the serial number of the most out of Garmin GPS and full featured mapping to record your unit. The Garmin GPSMAP® 188/188C/238 Sounders utilize the proven performance of your new navigation system, take the time to go through this manual. ) NOTE...
Owners Manual
Page 5
... user-serviceable parts. FCC Compliance The GPSMAP 188/188C/238 complies with the most complete and accurate cartography that to which the receiver is subject to the consumer. Operation of Garmin is being provided in a particular installation. Repairs should only be misused or misinterpreted and, therefore, become unsafe. Introduction Warnings and Cautions , MAP DATA INFORMATION: One of the goals of this device is connected...
... user-serviceable parts. FCC Compliance The GPSMAP 188/188C/238 complies with the most complete and accurate cartography that to which the receiver is subject to the consumer. Operation of Garmin is being provided in a particular installation. Repairs should only be misused or misinterpreted and, therefore, become unsafe. Introduction Warnings and Cautions , MAP DATA INFORMATION: One of the goals of this device is connected...
Owners Manual
Page 9
...) satellites to a starting position • Built-in simulator mode • Built-in tide information from the additional set of both bottom hardness and structure • See-Thru® technology which allows you need: Precision Performance • 188C: High-contrast, 16-color LCD screen with backlighting; 188/238: High-contrast, ten-level gray, LCD screen with a moving view window • Underwater waypoint marking • Map/Sonar split screen combines navigation and...
...) satellites to a starting position • Built-in simulator mode • Built-in tide information from the additional set of both bottom hardness and structure • See-Thru® technology which allows you need: Precision Performance • 188C: High-contrast, 16-color LCD screen with backlighting; 188/238: High-contrast, ten-level gray, LCD screen with a moving view window • Underwater waypoint marking • Map/Sonar split screen combines navigation and...
Owners Manual
Page 32
Reference Map Page Data Fields Land Geographic Name Cursor Water Navaids Map Scale Map Page (shown in cursor mode and using the unit with the optional BlueChart data or MapSource software, the map display shows your boat on a digital chart, complete with geographic names, map items, navaids, and a host of the map, the unit map pause as it load new data. The GPSMAP system will enter cursor mode. An on-screen cursor lets you pan and scroll to provide...
Reference Map Page Data Fields Land Geographic Name Cursor Water Navaids Map Scale Map Page (shown in cursor mode and using the unit with the optional BlueChart data or MapSource software, the map display shows your boat on a digital chart, complete with geographic names, map items, navaids, and a host of the map, the unit map pause as it load new data. The GPSMAP system will enter cursor mode. An on-screen cursor lets you pan and scroll to provide...
Owners Manual
Page 39
..., AutoZoom Source Basemap, Data Card Maps Waypoints Waypoints, Active Route Points Spot Soundings, Tide Stations, Services Navaids Symbol Set, Text Size, Light Sectors Nav Line Heading Line, Bearing Line, Course Line Track Saved Tracks, Track Log Other Accuracy Circle, Lat/Lon Grid, Map Outlines To change and press ENTER. 3. Reference Map Page Options Double-Arrow Adjusting the split map/ sonar display Main Menu- jumps to the desired setting and press ENTER. To exit, press QUIT. To resize the Map Page sonar split screen: 1. Move LEFT or...
..., AutoZoom Source Basemap, Data Card Maps Waypoints Waypoints, Active Route Points Spot Soundings, Tide Stations, Services Navaids Symbol Set, Text Size, Light Sectors Nav Line Heading Line, Bearing Line, Course Line Track Saved Tracks, Track Log Other Accuracy Circle, Lat/Lon Grid, Map Outlines To change and press ENTER. 3. Reference Map Page Options Double-Arrow Adjusting the split map/ sonar display Main Menu- jumps to the desired setting and press ENTER. To exit, press QUIT. To resize the Map Page sonar split screen: 1. Move LEFT or...
Owners Manual
Page 44
... of the display screen shows the complete sonar picture at the same time. sets the display depth range used to a user-specified depth range. All target depths will read as a distance form the bottom. • Btm (Bottom) Lock: displays only the Bottom Lock picture (returns from the bottom up ) on the full screen. The Zoom setting is set to 'Split', then a 50/200kHz split screen will be set to automatically track the bottom...
... of the display screen shows the complete sonar picture at the same time. sets the display depth range used to a user-specified depth range. All target depths will read as a distance form the bottom. • Btm (Bottom) Lock: displays only the Bottom Lock picture (returns from the bottom up ) on the full screen. The Zoom setting is set to 'Split', then a 50/200kHz split screen will be set to automatically track the bottom...
Owners Manual
Page 49
... the depth window will show entire scale of 2X or 4X left side of a split sonar screen. used to Black, Blue or White. The 'Keel Offset' will be displayed on the Sonar Page to offset the surface reading for shallow water or high noise areas, will update more quickly and is recommended for low-noise, deeper water (>50 ft.). 'Auto' is not tracking the bottom. Background Color - (GPSMAP 188C only) sets...
... the depth window will show entire scale of 2X or 4X left side of a split sonar screen. used to Black, Blue or White. The 'Keel Offset' will be displayed on the Sonar Page to offset the surface reading for shallow water or high noise areas, will update more quickly and is recommended for low-noise, deeper water (>50 ft.). 'Auto' is not tracking the bottom. Background Color - (GPSMAP 188C only) sets...
Owners Manual
Page 50
... speed sensor cables. • Page Defaults - To restore default settings to a cruising speed. Check connections of the display. restores the Sonar Page settings to the original factory setup. If a ground speed is not available, the top uncalibrated water speed is correct, highlight 'OK' and press ENTER. Note your unit will automatically use the speed sensor's uncalibrated speed. , NOTE: If the boat is not moving or safely increase boat speed. Reference Sonar Page Options Keel Offset: Transducer at Surface Enter (+) positive number to show depth...
... speed sensor cables. • Page Defaults - To restore default settings to a cruising speed. Check connections of the display. restores the Sonar Page settings to the original factory setup. If a ground speed is not available, the top uncalibrated water speed is correct, highlight 'OK' and press ENTER. Note your unit will automatically use the speed sensor's uncalibrated speed. , NOTE: If the boat is not moving or safely increase boat speed. Reference Sonar Page Options Keel Offset: Transducer at Surface Enter (+) positive number to show depth...
Owners Manual
Page 54
.... 3. Marking Your Present Position The Garmin GPSMAP 188/188C/238 Sounder's ENTER/MARK key lets you to select a map position or map item from the map display. • Graphically- Press and hold the ENTER/MARK key until the 'New Waypoint' window appears, then release it. allows you to enter a new waypoint's coordinates manually (from the map display using three basic methods: • ENTER/MARK key- Reference Creating Waypoints Highlight 'OK' and press ENTER to use the ARROW KEYPAD to enter the new letters/numbers and...
.... 3. Marking Your Present Position The Garmin GPSMAP 188/188C/238 Sounder's ENTER/MARK key lets you to select a map position or map item from the map display. • Graphically- Press and hold the ENTER/MARK key until the 'New Waypoint' window appears, then release it. allows you to enter a new waypoint's coordinates manually (from the map display using three basic methods: • ENTER/MARK key- Reference Creating Waypoints Highlight 'OK' and press ENTER to use the ARROW KEYPAD to enter the new letters/numbers and...
Owners Manual
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... enter the new coordinates and press ENTER when done. 7. After entering and confirming your changes and press ENTER when done. Make your changes, use the ARROW KEYPAD to save the waypoint into memory. Reference Creating Waypoints Creating a waypoint on an open map location. To manually enter a set of that map feature appears. The GPSMAP 188/188C/238 Sounder uses the map item text shown on the map feature), highlight 'OK' and press ENTER. The 'New Map Waypoint' page appears. To create a new waypoint...
... enter the new coordinates and press ENTER when done. 7. After entering and confirming your changes and press ENTER when done. Make your changes, use the ARROW KEYPAD to save the waypoint into memory. Reference Creating Waypoints Creating a waypoint on an open map location. To manually enter a set of that map feature appears. The GPSMAP 188/188C/238 Sounder uses the map item text shown on the map feature), highlight 'OK' and press ENTER. The 'New Map Waypoint' page appears. To create a new waypoint...
Owners Manual
Page 67
... as you create the route. The Garmin GPSMAP 188/188C/238 Sounder lets you to see each new waypoint to the route, the data window at the top of the route points as Text' and press ENTER to return to select the desired map position and press ENTER. As you add each route graphically on the map to indicate each . Reference Creating a Route Main Menu-Route Tab and Route Options Menu You will show you have...
... as you create the route. The Garmin GPSMAP 188/188C/238 Sounder lets you to see each new waypoint to the route, the data window at the top of the route points as Text' and press ENTER to return to select the desired map position and press ENTER. As you add each route graphically on the map to indicate each . Reference Creating a Route Main Menu-Route Tab and Route Options Menu You will show you have...
Owners Manual
Page 77
...; Track - sets up time format, time zones, and daylight savings. (continued) Main Menu Page 67 Main Menu Page The GPSMAP 188/188C/238 Sounder's Main Menu Page provides access to various waypoint, system, navigation and interface management, and setup menus in the GPSMAP 188/188C/238 Sounder's system, and is recorded and displayed. • DSC- See pages 2-3 for additional submenu options or press ENTER/MARK to make changes to use "tab" format. If you record a track...
...; Track - sets up time format, time zones, and daylight savings. (continued) Main Menu Page 67 Main Menu Page The GPSMAP 188/188C/238 Sounder's Main Menu Page provides access to various waypoint, system, navigation and interface management, and setup menus in the GPSMAP 188/188C/238 Sounder's system, and is recorded and displayed. • DSC- See pages 2-3 for additional submenu options or press ENTER/MARK to make changes to use "tab" format. If you record a track...
Owners Manual
Page 89
... send and receive NMEA data from this type of that posistion, highlight 'Create Waypoint' and press ENTER/MARK. Remember this screen are set off and the call . MMSI number attached to all DSC users in radio range. Basic wiring is specific to store incoming information received from another user's DSC capable VHF/GPS combination. Position Reports are broadcasted to a VHF radio with DSC support, the GPS unit displays a Call List, Log, and a Directory available to the receiver. Reference Main Menu: DSC Tab...
... send and receive NMEA data from this type of that posistion, highlight 'Create Waypoint' and press ENTER/MARK. Remember this screen are set off and the call . MMSI number attached to all DSC users in radio range. Basic wiring is specific to store incoming information received from another user's DSC capable VHF/GPS combination. Position Reports are broadcasted to a VHF radio with DSC support, the GPS unit displays a Call List, Log, and a Directory available to the receiver. Reference Main Menu: DSC Tab...
Owners Manual
Page 101
... when the GPS position accuracy falls outside the specified values. set an alarm: 1. You must be receiving sonar data for sounding the alarm and use the control field to set value. Highlight the field below , inside or outside the user-set the alarm to sound when you 're a specified distance or time away from a destination waypoint. Reference Main Menu: Alarm Tab Main Menu-Alarm Tab...
... when the GPS position accuracy falls outside the specified values. set an alarm: 1. You must be receiving sonar data for sounding the alarm and use the control field to set value. Highlight the field below , inside or outside the user-set the alarm to sound when you 're a specified distance or time away from a destination waypoint. Reference Main Menu: Alarm Tab Main Menu-Alarm Tab...
Owners Manual
Page 102
... display unit. Route the cable to prevent inaccurate speed readings caused by the boat's superstructure, a radome antenna, or mast. Use appropriate tie-wraps, fasteners, and sealant to get the best possible performance. Never paint the antenna or clean it will void the antenna warranty. The Garmin antenna screws directly onto any bulkhead or deck. 3. Once the GPSMAP 188/188C/238 Sounder unit has been installed, connect the cable to the antenna connector...
... display unit. Route the cable to prevent inaccurate speed readings caused by the boat's superstructure, a radome antenna, or mast. Use appropriate tie-wraps, fasteners, and sealant to get the best possible performance. Never paint the antenna or clean it will void the antenna warranty. The Garmin antenna screws directly onto any bulkhead or deck. 3. Once the GPSMAP 188/188C/238 Sounder unit has been installed, connect the cable to the antenna connector...
Owners Manual
Page 104
... four screw holes centers on your bulkhead or other surface (figure 1). 3. For flush mounting the GPSMAP 188C unit, refer to choose an appropriately sized location for the unit and leave 1.25" (32mm) clearance below the data card slot for more support. Connect the power/data and antenna cables. Remove the four M5 screws from the panel and drill the four 0.20" (5.08 mm) screw holes...
... four screw holes centers on your bulkhead or other surface (figure 1). 3. For flush mounting the GPSMAP 188C unit, refer to choose an appropriately sized location for the unit and leave 1.25" (32mm) clearance below the data card slot for more support. Connect the power/data and antenna cables. Remove the four M5 screws from the panel and drill the four 0.20" (5.08 mm) screw holes...
Owners Manual
Page 105
...) 703-836-4229 FAX www.rtcm.org 95 No additional NMEA sentences have to be set to a 8-35 (GPSMAP 188C 10-35) volt DC system and provides interface capabilities for connecting external devices. The color code in 3.01. Connecting the Power/Data Cable The power/data cable connects the GPSMAP 188/238 Sounder to NMEA In/NMEA Out. *GPSMAP 188C with software version 5.20 and GPSMAP 188/238 with support for the DPT (Depth), MTW (Water Temp) and VHW (Water Speed & Heading) sentences.
...) 703-836-4229 FAX www.rtcm.org 95 No additional NMEA sentences have to be set to a 8-35 (GPSMAP 188C 10-35) volt DC system and provides interface capabilities for connecting external devices. The color code in 3.01. Connecting the Power/Data Cable The power/data cable connects the GPSMAP 188/238 Sounder to NMEA In/NMEA Out. *GPSMAP 188C with software version 5.20 and GPSMAP 188/238 with support for the DPT (Depth), MTW (Water Temp) and VHW (Water Speed & Heading) sentences.
Owners Manual
Page 111
... occur (such as waypoints, routes, etc. Cleaning The GPSMAP 188/188C/238 Sounder is always a good practice to back up important user data by manually recording it or downloading it to a PC (transferring it to MapSource) or save to a data card (pg 82). Storage Do not store the GPSMAP 188/188C/238 Sounder where prolonged exposure to temperature extremes may damage plastic components. , WARNING: The GPSMAP 188C Sounder lens is coated...
... occur (such as waypoints, routes, etc. Cleaning The GPSMAP 188/188C/238 Sounder is always a good practice to back up important user data by manually recording it or downloading it to a PC (transferring it to MapSource) or save to a data card (pg 82). Storage Do not store the GPSMAP 188/188C/238 Sounder where prolonged exposure to temperature extremes may damage plastic components. , WARNING: The GPSMAP 188C Sounder lens is coated...
Owners Manual
Page 116
... antenna wiring/connections or antenna replacement. The unit has lost satellite signals. Internal problem with the unit. Processor Failed Unit Needs Repair- You have drifted out of the specified point. Internal problem with the unit. Boat is not turning. iv) to 35.0 volts). Check antenna connections or try moving to have the unit serviced. Deep Water Alarm- Alarm Clock- You are no tide stations within 100 miles of the specified distance range. Input DC voltage...
... antenna wiring/connections or antenna replacement. The unit has lost satellite signals. Internal problem with the unit. Processor Failed Unit Needs Repair- You have drifted out of the specified point. Internal problem with the unit. Boat is not turning. iv) to 35.0 volts). Check antenna connections or try moving to have the unit serviced. Deep Water Alarm- Alarm Clock- You are no tide stations within 100 miles of the specified distance range. Input DC voltage...
Owners Manual
Page 117
... unit serviced. Track Memory Is Full Can't Create Track- A complete uploaded track will not fit into memory. The oldest track log points were deleted to have entered a saved track name that already exists in the unit's memory and no additional routes can be added until existing ones are removed. Transducer Disconnected Sonar Turned Off- Transfer Complete- The unit has finished uploading/downloading information to a route. Water Speed Sensor is already in memory. Waypoint Already Exists: - Waypoint...
... unit serviced. Track Memory Is Full Can't Create Track- A complete uploaded track will not fit into memory. The oldest track log points were deleted to have entered a saved track name that already exists in the unit's memory and no additional routes can be added until existing ones are removed. Transducer Disconnected Sonar Turned Off- Transfer Complete- The unit has finished uploading/downloading information to a route. Water Speed Sensor is already in memory. Waypoint Already Exists: - Waypoint...