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        Garmin 168 GPS Receiver User Manual
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1.             You can also search for a waypoint by name     To delete waypoints by symbol  1  Highlight the name field and press ENTER MARK    1  From the    By Name    tab  highlight the waypoint to be deleted and press the MENU key  then select 2  Use the ARROW KEYPAD to select the first letter of the     Delete By Symbol    and press ENTER MARK  name    2  Use the ARROW KEYPAD to highlight the symbol of the waypoint s  to be deleted and press Sid   i e ae AAS OnE YOu   ENTER MARK not see it on the list below     4  Repeat this until the name appears  Press ENTER MARK  3  Press ENTER MARK to confirm  You may also choose    Cancel    or press QUIT to stop the deletion  when you see the name     5  Highlight the name on the list and press ENTER MARK    To delete all waypoints or the entire waypoint list  l  again to review the waypoint     1  Press the MENU key to select the options window   2  Use the ARROW KEYPAD to highlight    Delete All    and then press ENTER MARK   3  Highlight the    OK    prompt and press ENTER MARK to confirm     53    54    Reference       Nearest Proximity  Waypoint Lists             Waypt By Name  TTI Proximity         Brg Dist  298  25 6   249  68 8   346  347   199  9 0   200  10 0     201  10 6   203  11 7   219  12 1   213  12 2   209  12 5           Nearest Waypoint List             Waypt By Hamel Nearest YETTE     Route proximity Alarm             Proximity Waypoint List    Nearest Waypoint List  The second waypoint submenu list available fr
2.         19    Reference       Main Menu        Celes  Celestial  Tab  Waypt  Date Time Position Time  Date Route  Feat 08 33   Trip Current Position Position  Time Sunrise  P  Map 7 07 14    Moon  Soar sunset Phase  ai osak ama E seviw  lelds N Moonrise LEN N Wind  grm   12 056 7 fo  naow  Celes 12 05  1   ps Ls P  Tide    Moonset SY IR Moon Position  01 27 Ye P  Sun Position             Horizon  0    45   70   Overhead  90          Waypt Date Time Position      13 FEB 00   08 33  Current Position            You may also  change the  skyview from     North Up    to     Track Up                     Choose Position From Map  Choose Waypoint             Select a Position    Sub Menu Options    80    Celes  Celestial  Tab    displays celestial data for sun and moon rise set  moon phase  and  approximate skyview location of the sun and moon  The moon phase will display the current visible  portion of the moon as a light color  You may display this data for your current position  a position  from the map  or a waypoint location  Also  you may select a different date and time  or use the  current data     To choose a position    1  Highlight the    Position    field and press ENTER  This will display the Find Menu    2  Select from    Current Location        Other Location     or one of the available catagories  The catagories  available will vary depending on the MapSource data that is currently loaded in the unit     If    Current Location    is selected the unit will search for t
3.        Power On     Screen Contrast    Light Contrast            To adjust the screen contrast  press LEFT or  RIGHT on the ARROW KEYPAD to move  the contrast slider     GPSMAP 168 Sounder Getting Started Tour   The GARMIN GPSMAP 168 Sounder is a powerful electronic navigation system that provides  detailed map coverage and convenient control of many advanced features right from the screen display   This tour is designed to take you through the basic pages and functions of the system using the  simulator mode  Once you re familiar with the main pages and functions of the unit  refer to the  Reference section for instructions on performing specific tasks and functions     The Getting Started tour assumes that the receiver has been properly installed and initialized  and  you have not changed any of the default unit settings  If you have changed any settings  position  formats  units of measure  etc    the descriptions and pictures in the tour may not match your  configuration     To turn on the GPSMAP 168 Sounder     1  Press and hold the POWER key until the power tone sounds  then release the POWER key  The  Welcome Page will appear while the unit conducts a self test     2  Once the self test is complete  press the ENTER MARK key  if you agree  to acknowledge the  warning     The Status Page will appear as the receiver begins acquiring satellites  From the Status Page or any  other page  you may also adjust the screen contrast and backlighting    To adjust the screen contras
4.        Reference 1  Press the QUIT key   To select an on screen waypoint or map item with the cursor   Map Page Cursor 1  Use the ARROW KEYPAD to move the cursor to the desired waypoint or map item  if there are    several waypoints grouped closely together  zoom in for a closer view      2  When a waypoint or map item is selected  it will become highlighted on the screen with the name  and position displayed   With an on screen waypoint or map item selected  you may review additional details by pushing  Small Town  Road  the ENTER MARK button  Ifa map item or waypoint includes more than one map feature  like a  town  city  intersection  road  lake or river   details for each feature at that location will be displayed in a  tabbed format on the Map Feature Review page        To view information about a map item     1  Use the ARROW KEYPAD to highlight a map item with the cursor and press ENTER MARK  The  Map Feature Review page will appear     From Current Location    65 CN BQ  2  Use the ARROW KEYPAD to view the tabbed information  Each tab shows the name of the map    H094  49 545              feature  the distance and bearing from your current location  and offers additional options     3  To center the selected map item on the Map Page  use the ARROW KEYPAD to highlight the    Show  on Map    button and press ENTER MARK  The    Map Feature    page appears with the map feature  name  distance and bearing from your current position  and position coordinates  Press QUIT once
5.      38  Sonar Page Configuration                2  Compass Page and Options                45  Highway Page and Options                46  WAV OUNE  seee co mncig nd dead oe ee bones 48  CRAM ooh ath ete ce iey teres 48  Reviewing and Editing                 50  Waypoint LIS seie e pee nee weed oceans ay  Nearest and Proximity                 54    Going toa Destination                    56  TORIC cds gn deed vette elie oeaeiee 58  MOB  441405006 geecens eres sacees ay 60   PO 3 pecee aoc s 65 Sues   en T 6l  C ep eaea pa r r ana 4  6l  Reviewing and Editing                 63   Active ROWS Pale knots ncisane sana ei 68   Man Men Page 6 4 i00s bedpnas deans acaauns 69  rea a o 324d apacdvenbacteeeee de 70  Trip  Time and Pages Tabs              2  OVC MAD 5 244 2ee encores ra 13  Vats Oe 25 heres kereti oye eens 74  Communication Tab                   76  VON TAD oo dupe ne neta 6 4 Sa 0 bats aces 78  Celestial TaD    80crosweaenesedacd ai 80  Tides TAD si co oa bab ho 4 OG nenaseues 81   Appendix A  Loran TD             00ce eee 83   Appendix B  Time Offsets               005 85   Appendix C  Messages             000eee ee 86   Appendix D  Map Datums                   88   Appendix E  Navigation Terms                90   Appendix F  Specifications               65 92   Appendix G  Installation                005 93   Appendix H  Understanding Sonar           103   Appendix l  Advanced NMEA Setup          108   Appendix J  Index             cece eens 109    Introduction    
6.     2  Highlight the    Serial Data Format    field and press ENTER   3  Select    NMEA IN NMEA OUT    and press ENTER     Advanced NMEA Output Setup    The GPSMAP 168 Sounder NMEA data transmission can be customized to keep the output rate at   two seconds  If the unit is setup to output all of the available NMEA sentences  the output rate may  exceed two seconds  The    Advanced NMEA Output Setup    page will allow you to turn On Off the GPS  Status  GSA  GSV   Waypoint Route  WPL  RTE  and the GARMIN Proprietary sentences  You can also  change the precision of the Lat Lon Minutes     Advanced NMEA Output Setup   1  With NMEA In NMEA Out selected  press the MENU key  Select NMEA Setup and press ENTER     2  To turn a field On Off  place the highlight over that field and press ENTER  Make a selection and  press ENTER again to accept the selection     GPSMAP 168 Sounder NMEA Sentence Output  NMEA Version 2 30 compliant     Always transmitted    GPRMC  GPGGA  GPGLL  GPBOD  GPBWC  GPVTG  GPXTE  GPRMB  Switchable sentences    GPGSA  GPGSV  GPWPL  GPRTE   GARMIN Proprietary    PGRME  PGRMZ  PGRMM    A    ACCES SOT ES oesi E viii  96  E Ch E E E ner E val  FANG CUNEO E eam T 34  ACUVe Route Page seiciseseentes 47 08  Active Route Page OPUONS srrerensiisss 68  Adjustineni BAP secere 14  38 39  aN NE EATA E EE 78 79  Anchor Drag Alarm   sssesosieresistirtrei 78  An val Aa ee 78  ARROW KEYPAD p csiniesusastunsinctiiniedsnhenesues l  B   eet MINS E E E 6 7  Pae A eE 78  B arne EIG aei
7.     Follow Route    option  Press ENTER MARK to confirm   3  The Select Route page will appear  with the    GPSMAP TOUR    route highlighted    4  Press ENTER MARK then highlight    Activate    and press ENTER MARK again    To get a better view of what s going on  zoom in to a closer map scale              1  Repeatedly press the IN key until you select the 3 nm scale     Note  You may also hold down the IN or OUT key to quickly scroll through the map scales  The  Map Page should now display five waypoints chained together in a simple route  with your boat at  the first route waypoint              You can also Invert a route to follow  E j A data field at the top of the page will now display the speed  distance to the second route    waypoint  and a pointer which shows you which way to go  To get started  lets enter a speed for our  vessel  which we can do from the Main Menu Page        To enter a boat speed   1  Press the MENU key twice to display the Main Menu Page                    BAT System Mode 2  Use the ARROW KEYPAD to highlight the    Systm    tab  then press RIGHT then DOWN until the field  units   Simulator below the word    Speed    is highlighted and press ENTER MARK    Comm Track Control Track   Sm Auto Track   357  3  Use the ARROW KEYPAD to enter a speed of 60 knots    z Speed Transdu     0 0  Temp 4  Press ENTER MARK to finish  and QUIT until you return to the Map Page    The    Set Position        Track Control    Once a speed has been entered  you ll notic
8.    EES  2  W157 5   to W142 5    10 E037  t0 E0323     3  W142 5   to W127 5    9 E052 5   to E067 5    4  W127 5   to W112 5    8 EUO  to E082 5    5          A simple way to determine your local time offset is how   W112 5   to W097 5      E082 5   to EQ97 5    6 many hours you are behind or ahead of UTC  also called   o o o o    Greenwich    or    zulu    time    WO097 5   to W082 5 6 E097 9   to El 12 5   Example  EST  Eastern Standard Time  is 5 hours behind  W082 5   to W067 5   sJ FLIZ  gt  te B12 75    8 UTC  so your offset would be  5  Adding one hour for   j r       daylight savings would make EDT  Eastern Daylight Time   UO TONA 4 ere  ete  a  4  Subtract an hour for each time zone as you travel west   W052 5   to W037 5    3 EIRP WEDL  10   i 7   o Offsets for Continental U S  would be   W037 5   to W022 5  2 EI S DELZ  11 EST 5 EDT a  W022 5   to WO07 5      ELTA to EIU     12 Col  6 CDT  5       MST 7 MDT  6  W007 5   to E007 5 0 PST 8 PDT 7    85    Appendix C       Messages    The GPSMAP 168 Sounder uses an on screen pop up message system  to alert you to unit operating characteristics  Press the ENTER key to  acknowledge and return to the page you were viewing     Alarm Clock    The alarm clock has sounded     Alarm Voltage Set Too High Set to 16 0V    Voltage range must be  between 10 0 and 16 0 volts  Adjust setting     Alarm Voltage Set Too Low Set to 10 0V    Voltage range must be  between 10 0 and 16 0 volts  Adjust setting     Anchor Drag Alarm    You h
9.    Track Tab       NH 35  02 036     HO76   13 887          You can use the    Show Map    option to  display a saved track        Waypt      Active  Saved     Track 16 JAN 02    Trip      Follow 16 JAN 02  Hap    Go To Point   sonar     Follow Route    Systm   Follow Track             Units   Comm     _   Baa  ea  Celej   Tide Al Se ee ee ee O E a E      9 Available   1 Used                   The track name will automatically  appear when highlighted on the     Saved    list and NAV MOB is pressed        11    Reference    Main Menu        Trip  Time and Pages Tabs    Reset    Options      Non Selectable ly    Data Field    72              Moving Average Moving Time  k          Trip Odometer Stopped Time  Track 0 27 01 59 24          Trip Tab            Track  Trip    Time Format     12 Hour    Time Zone    A Central                Time Tab    Selectable  Data  Fields    Trip Tab    displays Trip Odometer  Moving Average speed  Total Average speed  Maximum Speed   Stopped Time  Moving Time  Total Time  and Odometer  You may reset the data by choosing from     Reset Trip        Reset Odometer        Reset Max Spd  speed      or    Reset All    and pressing ENTER MARK     Time Tab    displays the current time and date  allows you to adjust the 12 or 24 hour time format   enter a time zone and adjust for daylight savings to show correct local time     The following options are available      Time Format    choose from 12 or 24 hour  military  time format        Time Zone    cho
10.    setting appears    Once in Zoom mode  you can control the view of the left side of the split  When the unit is set to  one of the Zoom settings  and additional optional named    View    will appear on the adjustment bar  The  View function operates in either    Auto View    or    Fixed View     Auto View will follow the bottom contour  while Fixed View will display the selected depth     To access the Sonar Zoom function     BRB W NO        While viewing the Sonar Page  press IN once  The 2X split screen will appear    Continue to press IN to advance to further zoom screen levels    To deactivate the Zoom function  press OUT until the original scale  No Zoom  appears   Press ENTER MARK or press LEFT or RIGHT on the ARROW KEYPAD     For more on the Zoom  View and other Sonar Page functions  see pages 38 44     To learn more about how sonar works  see Appendix H     Getting Started    Sonar Page    DEPTH f SPEED k WATER SPEED k  2 i 0 0       2X Zoom Red 2x Split__ Gain View Line     View i             ae ae 160  Sonar 2X Split Screen  shown with  Depth Line and Flasher     hy eee AA  se re                WATER TEMP    47 9 0 0  50 4  Range 4 2x Split  gt  Gain View i  2x Split  a 2x Zoom  ees            An A  A        S0   Bi     Be  ss    N  Bar       ace A  mi TMA       Sonar Zoom  Adjustment       Normal  View           represents  area shown  on 2X View          Getting Started    Compass Highway  Navigation Pages    Data Fields Current  Destination       SPEED DIST TO 
11.   references which are automatically determined from your current position     True    provides headings  based upon a true north reference     Grid    provides headings based on a grid north reference  and         dae ae ead 7 Main Menu   is used in conjunction with the grid position formats described on page 74      User Mag Var    allows      J oP ome 5 Units Tab    you to specify the magnetic variation at your current position and provides magnetic north heading  references based upon the variation you enter     To enter a user defined magnetic variation              1  With the    Heading    field set to    User Mag Var     highlight the heading reference field  immediately  to the right  and press ENTER MARK     2  Use the ARROW KEYPAD to enter the magnetic variation at your current position and press  ENTER MARK     Position Format  Route r  Track hddd  mm mmm     i Map Datum    WGS 84        WARNING  If    User Mag Var    is selected  you must periodically update the magnetic  variation as your position changes  Using this setting  the unit will not automatically  calculate and update the magnetic variation at your present position  Failure to update  this setting may result in substantial differences between the information displayed on  your unit and external references  such as a magnetic compass              You may manually enter a magnetic    variation   e Distance  Speed and Elevation    lets you select the desired units of measure for distance  speed and    el
12.   to return to the Map Feature Review page  or press QUIT twice to return to the Map Page     4  To create a waypoint at the selected map location  use the ARROW KEYPAD to highlight    Create  Waypt  and press ENTER MARK  The New Waypoint page appears with the name of the map  item set as the default waypoint name  see    Creating Waypoints Graphically    on page 49 for more  information on creating a waypoint      5  To return to the Map Page  use the ARROW KEYPAD to highlight the    OK    button and press  ENTER MARK  or just press the QUIT key        Pressing ENTER MARK while  highlighting a map item will bring  up additional details and options     26    With MapSource Fishing HotSpots data loaded into the GPSMAP 168 Sounder  additional details  are available when you highlight a point on the map within a Fishing Hot Spots coverage area  Fish  Reference  ing Hot Spots data provides detailed information in tabbed format such as shoreline  depth contours   submerged objects  swimming areas  navigational aids  mile markers  boat ramps  marinas  facilities   lake profiles and fishing areas  Lake profiles include details about size  depth  water source  shoreline  map Page Cursor  bottom conditions and vegetation  Fishing area information describes the area  the type of fish found  there  the best time of year to fish that area  and the best types of lures for catching certain fish in that  area           To view Fishing Hot Spots information  Fishing Area Lake   Fishing Hot S
13.  Anchor Drag   Arrival  Off Course  Clock  Shallow Water  Deep Water  Fish and Battery     Anchor Drag    sets an alarm to sound when you ve exceeded a specified drift distance  Enter a  distance up to 9 99 miles or kilometers in the distance field and use the control field to turn the  alarm on and off     Arrival    sets an alarm to sound when youre a specified distance or time away from a destination  waypoint  Enter a distance radius or time for sounding the alarm and use the control field to set the  alarm to    Off        Dist     Distance   or    Time        Off Course    sets an alarm to sound when you re off a desired course by a specified distance   Enter a distance from 0 to 99 99 units in the distance field and use the control field to turn the  alarm on and off     Clock    provides an alarm for the system clock  Enter a time in the time field and turn the alarm on  and off from the control field menu  Remember to enter alarm times in the same time format  UTC  or local  you re using for your system  The unit must be on for the clock alarm to work     Shallow Water    sets an alarm to sound when you enter an area of specified depth that is too  shallow  Enter a depth range from 0 to 999 99 in the distance field and use the control field to  turn the alarm on and off     Deep Water    sets an alarm to sound when you enter an area of specified depth that is too deep   Enter a depth range from 0 to 999 99 in the distance field and use the control field to turn the  
14.  By Name    submenu of the    Waypt    tab   e New Waypoint    creates a new waypoint      Delete Waypoint    deletes selected waypoint from list AND any route in which it was used      Delete by Symbol    deletes all waypoints that use the same symbol      Delete All    deletes all waypoints from the unit     A Once a waypoint is deleted from the list  it cannot be recovered from the unit  It is  advisable to backup important waypoints to a computer using GARMIN s MapSource  software     To display the waypoint menu options   1  Using the ARROW KEYPAD  highlight the    By Name    tab and press the MENU key  Reference  To scroll through and review the waypoint list           1  With the ARROW KEYPAD  highlight the    Waypt  tab trom the Main Menu Page and then highlight Waypoint Options     By Name      2  Use the ARROW KEYPAD to scroll through the list in the desired direction     Waypt CETTT Nearest Proximity     3  Press ENTER MARK to review the highlighted waypoint on the Waypoint Edit Page   4  Press ENTER MARK to return to the list     To create a new waypoint using the waypoint menu  see page 50     To delete an individual waypoint from the list    1  Use the ARROW KEYPAD to highlight the waypoint to be deleted and press MENU     2  Highlight    Delete Waypoint    and press ENTER MARK  You may also highlight the waypoint  press g ce AT Usei  ENTER MARK  then highlight    Delete    and press ENTER MARK     3  Press the ENTER MARK key to confirm the deletion warning     
15.  Cable   AC Power PC Interface Cable   Protective Cover   Owner s Manual and Quick Reference Guide      Not included with part number 010 00202 00 or 010 00202 02      Not included with part number 010 00199 00 or 010 00199 02     Optional Accessories     US A C PC Adapter  EURO A C PC Adapter  UK A C PC Adapter    Cigarette Lighter Adapter    MapSource CDs  Fishing Hot Spots  US Waterways  amp  Lights  US Topo  US Roads  amp  Recreation   European Roads  amp  Recreation  and WorldMap    Beacon Receiver for differential corrections  GBR21  E Field Antenna   GBR23  H Field Antenna      2nd Mounting Station  Quick Release Flush Mounting Kit  Marine Swivel Mount  1    RAM   Mount    Introduction             ccc cee eeaeaeee i viii    FOICWOIC 4 nagaceenpaacecate Gone rawie cs i  Preface and Registration                    ii  Warnings and Precautions                 iii  Warranty and Serial Number               iv  CAOA0IINES  op ecwenne 4 2008 on nureeiees V  Pa king List syss atesett Ugs E Ea NEE ET vi   How To MUE sorersri dn oe none dads viii  Section One  Getting Started              1 19    Keypad Usage  Selecting Options  Entering  Data  Initializing the Receiver  Power   On Off  Contrast  Backlighting  Simulator   Description of Main Pages  Simulated Tour    Section Two  Reference             005  20 82  Status Page and Options                   21  Map Page and Options                    24  Map Page Configuration                oy   Sonar Page and Options              
16.  Each data field may be configured to display any one of 27 data options  The  data window layout may also be changed to display additional data fields and change the actual size  of the data displayed     The GPSMAP 168 Sounders Map Page provides access to functions and features relating to the  Map Page and the layout options    To display the Map Page options    1  Press MENU    To select a menu option    1  Use the ARROW KEYPAD to highlight the desired option and press ENTER MARK    The available options are Full Screen Map On Full Screen Map Off  Measure Distance  Show Sonar     Show Flasher Hide Flasher  Resize Map  Configure Map  Setup Page Layout  Change Data Fields and  Declutter On Off  Following are details on using each of these options        Full Screen Map On Full Screen Map Off     toggles between a Map Page without or with data  fields on the map display   To maximize the map show data fields     1  Highlight the    Full Screen Map On    option and press ENTER MARK  The Map Page will now be  maximized with no data fields     2  To show the data fields again  press MENU  highlight    Full Screen Map Off    and press  ENTER MARK     e Measure Distance    allows you to measure the bearing and distance between any two points on       the map display  Reference  To measure the BRG DIS between two points   1  Highlight the    Measure Distance    option and press ENTER MARK  An on screen pointer will appear Map Page Options    on the map display at your present posi
17.  Go To    from the find list    1  Press the NAV MOB key    2  Use the ARROW KEYPAD to highlight    Go To Point    and press ENTER MARK  The    Find    list will  be displayed    3  Select a catagory  i e  Waypoint  City  Facitilies  Transportation  trom the    Find    list  then using the  ARROW KEYPAD select a point from that catagory  Press ENTER MARK to display a review  page for the selection  then with the    GO TO    button highlighted  press ENTER MARK to begin  navigation     Selecting a    Go To    Graphically   A graphical    Go To    may be used to select one of three items from the map display  an existing  waypoint  an on screen map item  roads  rivers  cities  navaids  etc    or a new map point  non map  item   If you are selecting a map item as the    Go To    destination  the GPSMAP 168 Sounder will  automatically use the name of the map item  but the point will not be stored in the waypoint list  See  page 49 for creating waypoints using map items  If you are selecting a new map point  non map item  Choose a catagory from    Find    list  as the    Go To    destination  the GPSMAP 168 Sounder will automatically create or move a waypoint then select a point from that catagory   named    MAP    at the cursor position     Reference       Going to a Destination                      DIST TO NEXT POINTER TRACK  n      To activate an existing waypoint or map item as a    Go To    from the map display   1  Use the ARROW KEYPAD to highlight the waypoint or map item o
18.  If    GARMIN DGPS    or    RTCM In NMEA Out    format is selected  additional fields are provided to                   control a GARMIN differential beacon receiver directly from your GPSMAP 168  You may have the unit Reference  automatically scan for the DGPS beacon signal or you can enter the beacon frequency and bit rate on  the unit and the information will be used to tune the beacon receiver  Main Menu   To have the unit automatically scan for a frequency  Comm Tab  1  With the unit set to  GARMIN DGPS    or    RTCM In NMEA Out     use the ARROW KEYPAD to eases  highlight the    Beacon    field and press ENTER MARK   GARMIN DGPS    2  Highlight    Scan    and press ENTER MARK  The numbers in the    Frequency    field will change as the i    4800 Tuning    unit scans from 284 kHz to 325 kHz  200 bit rate  then 100  at 6 second intervals  Beacon BitRate Frequency       To restart the scan   1  Press MENU  highlight    Restart Scan    and press ENTER MARK   To manually enter a frequency and bit rate     1  With the unit set to  GARMIN DGPS    or    RTCM In NMEA Out     use the ARROW KEYPAD to  highlight the    Beacon    field and press ENTER MARK                 You may also manually enter a    2  Highlight    User    and press ENTER MARK  bit rate and frequency     3  Highlight the    Frequency    or    Bit Rate    field  press ENTER MARK  then enter a frequency or bit  rate and press ENTER MARK when done     The    Status    field will show one of the following      Tuni
19.  Note  Items appear on the screen as they pass  under your transducer  Those objects appearing on the right side of the screen are closer to you  than those on the left   Fish are displayed as a darkened arch or a fish icon in three different sizes   Thermoclines  layers of water separating warmer water above from cooler water below  are shown  as shades of gray     The area of strongest sonar return  or whiteline  is displayed as solid gray  Typically  the bottom  will be the primary source of the whiteline  A thin whiteline indicates a softer bottom while a thick  whiteline shows a harder bottom  A black line is used to show the point where water meets the  whiteline  This black line will follow the bottom contour  along with any significant objects lying on  the bottom  Along the right side of the screen is an adjustable scale which reflects the depth of the  area being displayed  If the unit does not detect a transducer attached to the unit  a    Sonar Turned  Off    message will appear across the top of the Sonar Page  More on the Sonar Page may be found  on pages 38 44    The GPSMAP 168 Sounder uses two range modes  auto and manual  Auto mode displays the  most information possible while continuously showing the bottom  Manual mode lets you select the  displayed depth  These and other Sonar Page functions are controlled from the adjustment bar     To switch from auto to manual mode     1  With the    Range    field highlighted  press the ARROW KEYPAD UP or DOWN until th
20.  Sounder Self Test Screen       Acquiring Satellites  ccuracy               All information is presented for   reference only  You assume total   responsibility and risk associated  with using this device     F cem to agree      2001  GARMIN Corporation                GPSMAP 168 Sounder Warning Screen    The GPSMAP 168 Sounders advanced keypad system is designed to allow for fast  convenient  selection of navigation options and data entry  The Getting Started Tour will introduce you to the  keypad and provide a    hands on    lesson in using the GPSMAP 168 Sounder  We strongly encourage  you to take the Getting Started tour before using your unit for actual navigation     The GPSMAP 168 Sounder Quick Reference Guide contains helpful tips on using the unit and  performing various navigation tasks  Its a good idea to keep the Quick Reference Guide nearby  whenever youre operating your new GPSMAP 168 Sounder     Initializing the Receiver    The first time you power up your new GPSMAP 168 Sounder  the receiver must be given an  opportunity to collect satellite data and establish its present position  To ensure proper initialization  the  GPSMAP 168 Sounder is shipped from the factory in AutoLocate mode  which will allow the receiver  to    find itself    anywhere in the world  To speed up the initialization process  we recommend using  the graphic initialization process described on the next page  which will usually provide a position  fix within a few minutes     Before you init
21.  Waypoints may also be quickly created using the map display  This feature allows you to select any  map position with the cursor and create a new waypoint  To mark a map item  select the desired map  item with the cursor then press and release the ENTER MARK key  If you select an item on the map   like a city  the GPSMAP 168 Sounder will use the text or name shown on the cartography as the default  name  When selecting a map item  the option    Create Waypoint    will appear in addition to a description  of that point and its distance and bearing from your current position     To create a new waypoint graphically     1  Use the ARROW KEYPAD to move the cursor to the desired map position  If you want to create the  new waypoint at an on screen map item  highlight the map item on the map display   2  Press and quickly release the ENTER MARK key  The    New Map Waypoint    page appears   NOTE     Pressing and holding the ENTER MARK key will mark your current location instead of the cursor  location  and bring up the    New Waypoint    page     If you are using a map item to create a waypoint  an information page s  for the map item will  appear first  Use the ARROW KEYPAD to highlight    Create Waypt    and press ENTER MARK  The     New Waypoint    page will now appear    3  To accept the waypoint with the default name and symbol  press ENTER MARK  If you are creating  a waypoint from an on screen map item  the name and symbol will automatically reflect the  selected map item s
22.  also be created graphically from  the map display or by manually entering position coordinates  Each of these techniques is described in  the reference section of the manual and or on your GPSMAP 168 Sounder Quick Reference Guide     Going to a Destination    GPS is all about marking positions as waypoints and navigating to them using the receiver s steering  guidance and map displays  We ve already seen how to use the ENTER MARK key to store our present  position  so it   s time to move on to the fun part   going to a destination     The NAV MOB key is the primary tool used to select a destination waypoint  TracBack  or a route  to navigate  The NAV MOB key can be used in three primary ways     Pressing NAV MOB once displays a list of options from which you can select    Go To Point        Follow  Route        Follow Track     or    Stop Navigation        Holding down or pressing twice on the NAV MOB key activates the MOB  Man OverBoard  feature   This marks the point at which the MOB was activated as a waypoint named    MOB    and also  establishes it as an active    Go To    point     Highlighting an on screen waypoint or map item as a destination directly from the Map Page and  pressing NAV MOB allows you to graphically select points to    Go To        For our simulated trip  you re going to select a pre programmed tour route using the first method   This will also show how the MENU key is used throughout the GPSMAP 168 Sounder system to  provide tab style options and fu
23.  and return to the Sonar Page  You may  also press RIGHT or LEFT on the ARROW KEYPAD to accept the setting and move to the next  Adjustment Bar setting     The available Adjustment Bar options are        Range    sets the display depth range used for viewing  The unit can be set to automatically track the  bottom or set to a user specified depth range        Zoom    used to quickly select a display zoom scale or to split the display  When a scale other than     No Zoom is selected  the Adjustment Bar will display a new selection labeled View  See page 15 for a  detailed description of the available Zoom settings     e Gain    allows the user to control the sensitivity of the unit s receiver  This provides some flexibility  in what is seen on the display  To see more detail  increase the receiver sensitivity by selecting a higher  gain      If there is too much detail or if the screen is cluttered  lowering the sensitivity     may increase  the clarity of the display     e View    available when a Zoom scale other than    No Zoom    is selected  The    View    setting is used to  change the viewing range of a zoomed display  If the display is split  only the zoomed portion on the left  side of the display will be affected by the change        Depth Line    the Depth Line setting is only available if    Depth Line    is selected from the Sonar Page  Options  See Page 41 for detailed instruction on the Depth Line     If the unit is unable to track the bottom for any reason  the 
24.  damage to the equipment     yi    LIMITED WARRANTY    This GARMIN product is warranted to be free from defects in materials or workmanship for one year from the  date of purchase  Within this period  GARMIN will at its sole option  repair or replace any components that fail  in normal use  Such repairs or replacement will be made at no charge to the customer for parts or labor  provided  that the customer shall be responsible for any transportation cost  This warranty does not cover failures due to  abuse  misuse  accident or unauthorized alteration or repairs    THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL  OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY  INCLUDING ANY LIABILITY ARISING UNDER  ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE  STATUTORY OR  OTHERWISE  THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS  WHICH MAY VARY FROM STATE  TO STALE     IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL  SPECIAL  INDIRECT OR CONSE   QUENTIAL DAMAGES  WHETHER RESULTING FROM THE USE  MISUSE  OR INABILITY TO USE THIS  PRODUCT OR FROM DEFECTS IN THE PRODUCT  Some states do not allow the exclusion of incidental or  consequential damages  so the above limitations may not apply to you     GARMIN retains the exclusive right to repair or replace the unit or software or offer a full refund of the  purchase price at its sole discretion  SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR  ANY BREACH OF WARRANTY     To obtain w
25.  displayed     e Change Data Fields    allows you to specify the type of data displayed in each data field used  on the map display     For detailed instructions on changing the data fields and layout of the Sonar Page  see page 35 37     Compass Page    The GPSMAP 168 Sounder features two different navigation pages  Compass and Highway  When   ever a NAV MOB  Follow Track  TracBack  or Follow Route have been activated  the GPSMAP 168    Reference       Sounders Compass Page will guide you to your destination with digital readouts and a graphic compass Compass Page  display  which includes a bearing pointer  Use this page  instead of the Highway Page  when travelling  at slower speeds  when making frequent directional changes  or where straight line navigation is not Data Fields    possible due to obstructions or terrain  The middle of the page features a rotating    compass ring     that shows your course over ground  track  while you re moving  Your present course over ground  is indicated at the top of the compass ring  A bearing pointer  in the middle of the compass ring           Navigating To  Miami Beach        Current                      Go To  indicates the direction of the destination  bearing  relative to the course over ground  The compass  ring and pointer arrow work independently to show   at a glance   the direction of your movement Compass  and the direction to your destination  For instance  if the arrow points up  you are going directly to Ring Bearing  the
26.  name and symbol    4  To change the name  symbol or enter a depth  highlight the appropriate field and press ENTER   MARK  Make your changes and press ENTER MARK when done     5  After entering and contirming your changes  highlight    OK    and press ENTER MARK     Reference    Creating Waypoints          New Map Waypoint     1003  N 38  51 142  Depth  W094  47 472  _ __ _        From Current Location    0 4  119          S  Delete       Map waypoint from non map item        Large City  Large City        From Current Location  1074 87  H 25  50 391   H080  09 375     Create Waypt                Choose    Create Waypt    to use a  map item for a new waypoint        49    Creating Waypoints By Text Entry       Reference Waypoints may also be created by manually entering position coordinates through the    Waypt    tab  on the main menu page   Creating and Editing Waypoints To create a new waypoint by manually entering its coordinates     1  Press MENU twice to display the main menu page   2  Highlight the    Waypt    tab and press MENU  Then highlight    New Waypoint    and press ENTER                     New Waypoint l   l    1003 MARK  The New Waypoint page will appear  with the next available waypoint number and the  Symbol Name Ba sg 7  L 38  51 338  Perth receiver s last known position as the default name and position   Coordinates Bobre aaa Depth 3  Use the ARROW KEYPAD to highlight the position coordinates field and press ENTER MARK   0 0  000   Press UP or DOWN on ARR
27.  ne eT re 78 79  See current position  date and time               0 0 0 c cece eee eee 8  20  VIEW A U MCSSAR Goes aie nay oa hence duh en teat an om E hme  86 87    The IN Key  The IN key adjusts the map scale to display a smaller area with more detail   Zooms in  Getting Started    The OUT Key  The OUT key adjusts the map scale to display a larger area with less detail   Zooms out  Keypad Usage  The PAGE Key   The PAGE key selects the main pages in sequence and returns display from a submenu page    The ARROW KEYPAD   The ARROW KEYPAD is used to select  Highlight  menu options and enter data  It also controls  cursor movement on the Map Page    The ENTER MARK Key   The ENTER MARK key selects a highlighted menu option  When entering data  it allows you to  initiate entry  and then to accept the selected value s   It also marks the current location as a waypoint  when pressed and held for more than one second    The QUIT Key   The QUIT key returns the display to the previous page and  when entering data  it restores the previous  value  cancels data entry     The MENU Key   The MENU key displays a menu of available options for the current page  Press twice to display   the Main Menu     The NAV MOB Key  The NAV MOB key displays the Go To and Follow navigation menu  It also activates the MOB  Man  OverBoard  function when pressed and held for more than one second     The POWER BACKLIGHT CONTRAST Key  g    The POWER BACKLIGHT CONTRAST key turns the unit and display illuminatio
28.  seeping into the transom                                   we    Transducer should extend 1 8  below                    fiberglass hull or 3 8  below aluminum hull                      Make sure that the transducer is  below water level when the boat  is on plane at high speed                        Do not mount transducer directly in the     path of the prop  The transducer can cause     cavitation that may degrade the boat s performance  and damage the prop           Mount the transducer parallel with the bottom     97    Appendix G       Mounting the Transducer        Weight transducer    PVC Pipe to hold it in place    or a Can       Fill Pipe or Can  with water or a  light mineral oil         Strip Caulk  or RTV Sealer    Hull Surface    Testing the Location    Apply twisting motion Weight transducer in place    to eliminate any for at least 24 hours  trapped air bubbles      Slow cure  2 part epoxy    Strip Caulk  or RIV  Sealer Dam    Installing the Transducer    98    To avoid drilling a hole to mount a thru hull transducer  a transom mount transducer may be used  with epoxy inside a boat     shoot thru hull    installation   For a transducer to be mounted inside the hull   shoot thru  not thru hull   the boat must be fiberglass  no core  contact your boat manufacturer if you  are unsure   Test by placing a small amount of water inside the hull  placing the transducer on top of  the water  then verifying the accuracy of the locators versus the current water depth  If
29.  tab  use the ARROW KEYPAD to highlight    Calibrate Water Speed    and press  ENTER MARK     2  Bring the boat to a cruising speed  Both the top ground and uncalibrated water speeds will be  shown at the bottom of the calibration window  Note your top speed  then stop the boat and  press ENTER MARK     3  By default  the top ground speed will automatically show in the    What was your top water speed      field  If a ground speed is not available  the top uncalibrated water speed will be used instead  If  the new speed is correct  highlight    OK    and press ENTER MARK  If you wish to manually enter a  calibration  press ENTER MARK on the speed field  enter a new speed and press ENTER MARK     4  You may also press MENU trom the calibration screen and choose    Use Top Ground Speed    to  default back to ground speed or    Use No Calibration    to use the speed sensor s uncalibrated speed     If the boat is not moving fast enough or the speed sensor is not outputting a speed  you  will see a    Boat Is Not Moving Fast Enough To Calibrate    message at the bottom of the  display  Check that the speed sensor wheel is moving or safely increase boat speed     If there is a problem with the speed sensor unit or if a speed senor is not installed  a     Water Speed Sensor Is Not Working    message will appear at the bottom of the display   Check connections of speed sensor cables        Setup Page Layout    allows you to change the text size and number of data fields that will be 
30.  the handle to secure the GPSMAP 168 Sounder    Portable Case to the boat  The case is water resistant but is not designed to float in  the event it should go overboard        The Suction Cup Transducer       Using the Portable unit  you will still need to find a suitable location for the transducer  If you  are in a slow moving boat such as a canoe or flat bottom boat  the mounting location is not as critical   Follow these simple guidelines and you should be fine     To install the suction cup transducer mount   1  Look for clean  non turbulent  water     Mount the transducer with approximately 1 2    extending beyond the bottom of the boat        2  3  Do not mount the transducer behind strakes on the bottom of the boat or in the path of a prop   4  Ifyou experience poor reception  try another location     e fe ees Bae ee ee eee Secure the GPSMAP 168 Sounder  WARNING  Speeds in excess or 20 MPH may cause the transducer to fly off and strike to the boat using the provided eyelets   occupants of the boat        101    When storing the Suction Cup Transducer in the case  dry the transducer and cable to avoid  Appendix G corrosion  If using in Salt Water  rinse the transducer and cable in fresh water and dry before storing  in the case     GPSMAP 168 Sounder Portable Batteries    The GPSMAP 168 Sounder Portable comes with a D Cell battery pack  Eight D Cell Alkaline batter   ies will provide approximately 20 hours of continuous operation  You have the option of purchasing  a 1
31.  they are the  same  use epoxy  non silicone based  to affix the transducer to the inside of the hull     Shoot Thru Hull Installation   The in hull transducer is designed to be mounted inside a fiberglass hull  The standard plastic  transom mount transducer can also be mounted in this fashion using this method  If using a  temperature sensing transducer  the temperature displayed will reflect the hull temperature     Selecting a Location     1  The location has to be solid fiberglass  devoid of any air bubbles  laminates  fillers or dead air space   The location needs to be in an area of clean water at all speeds  Do not place the transducer over  any strakes or behind any obstruction on the hull that would create turbulence at speed     A Many modern hulls have a prelocated pocket for thru hull transducer installation  If  you are unsure if your hull is equipped with a prelocated pocket  contact your hull  manufacturer        Testing the Location    1  Place the transducer in the water  pointed directly at the bottom and set unit for optimum  performance  Place the transducer in the test device as show on the side bar  If the sonar  performance is significantly degraded  another location will need to be tested    Installing the Transducer    1  Lightly sand the surface of the hull and face of the transducer with 400 grit wet or dry sandpaper     2  Build a dam using strip caulk about 1 4    tall  Pour about 1 8    of two part  slow cure epoxy in the  dam  Place the transduc
32.  used for the active track log and options to clear the track  memory or start a TracBack route  See pages 58 59 for TracBack information  The Track submenu is  divided in two tabs  the    Active    tab and the    Saved    tab     The    Active    tab is for the active log  the log currently being recorded   It displays track memory  used and current settings                 Active Track Tab  us The    Saved    tab displays and manages a list of any saved track logs  allows TracBack activation and    map display of saved logs  The active log stores up to approximately 2000 track log points  based upon  the criteria specified in the Track settings  Up to 10 track logs may be saved in memory  with up to  250 track log points in each saved log                Active SITT     For the    Active    tab  the following settings are available      Record Mode    lets you select one of three track recording options     Off    No track log will be recorded  Note that selecting the    Off    setting will prevent you from  using the TracBack feature        Fill    a track log will be recorded until the track memory is full     Wrap    A track log will be continuously recorded  wrapping through the available memory   replacing the oldest track data with new data              9 Available   1 Used       Saved Track Tab    10    e Interval    defines the frequency at which the track plot is recorded  Three interval settings are  available     Time    records track plot based on a user defined 
33.  waypoint  If the arrow points any direction other than up  turn toward the arrow until it points Pointer  up  then continue in that direction   The GPSMAP 168 Sounders Compass Page features a menu page that provides access to layout and  data field options  The data window  located at the top of the page  provides a user selectable layout  of various types of useful data  Each data field may be configured to display any one of 27 data  options  The data window layout may also be changed to display additional data fields and change  the actual size of the data displayed   To display the Compass Page options   1  Press MENU   l Curren Bearing  To select a menu option  Go To as  1  Use the ARROW KEYPAD to highlight the desired option and press ENTER MARK  For detailed W l  instructions on changing the data fields and layout of the Compass Page  see pages 35 37  oe     aay nl  Cree  Ribbon When using the    Huge  2 rows     Arrow    option  steer until the bearing line is  aligned with the course arrow     45    Route  Points    46    Reference    Highway Page    Data Fields  S             Desired Track Line Current Position                   You can configure the page to show  the active point only and also zoom  out to get a better view           Current  Go To    Zoom  Scale    Highway Page    Whenever a NAV MOB  TracBack or route has been activated  the GPSMAP 168 Sounders  Highway Page will provide digital and graphic steering guidance to the destination with the Naviga   t
34.  without notice  GARMIN reserves the right to  change or improve its products and to make changes in the content without obligation to notify any  person or organization of such changes or improvements     July 2002 Part Number 190 00170 00 Rev  D Printed in Taiwan    Introduction       Foreword    GARMIN    Autolocate    See Thru    DCG  Depth Control  Gain    and TracBack   are registered trademarks  and  MapSource    is a trademark of GARMIN Corporation and  may not be used without the express permission of GARMIN  Corporation        Introduction       Preface and  Registration       Why should you register your GARMIN GPS  unit    e Notification of Product Updates   e Notification of New Products   e Lost or Stolen unit tracking       Preface    Congratulations on choosing one of the most advanced depth sounding and marine navigation  systems available  The GARMIN GPSMAP 168 Sounder utilizes the proven performance of GARMIN  GPS and full featured depth sounding and mapping to create an unsurpassed marine navigation  chartplotter and fishfinding package     To get the most out of your new navigation and sounding system  take the time to go through  this owners manual and learn the operating procedures for your unit  This manual is broken down  into two parts for your convenience     Part One introduces you to the GPSMAP 168 Sounder and provides a Getting Started tour so you  may become more familiar with the unit  This section will provide you with a basic working knowledg
35. 0  H 38  5 1 338    000   HO94  47 929                        Choose    Edit as Text    to return to the  Route Page    65    Reference       Editing Routes    TOUR 1 TOURS         H 35   12 766     H076  30 876     OUeT200 mM     Sk 6 Points Available  4 Points Used          Highlight the route leg on which you wish to    insert a waypoint and press ENTER MARK         H_35  09 058   H076  33 525         QUESTION              Drag the route leg to an existing waypoint   shown   map item  or a blank spot on the  map to create a new route point     66    The GPSMAP 168 Sounders    Edit on Map    mode also allows you to insert a new route waypoint  in any route leg using the map cursor   To insert a new point between two existing route waypoints     1  Use the ARROW KEYPAD to select the leg you want to insert the new waypoint in  the route line  will highlight and change to a dotted line when the leg is selected  and press ENTER MARK     2  Move the cursor to the new map position  existing waypoint  or map item  You will see    ADD    below  the arrow and the route lines will move with the arrow   and press ENTER MARK     3  If you are not inserting an existing point  press ENTER MARK to confirm the new waypoint   Insert Add Waypoint    Allow you to insert a waypoint into the list of route points or add a point s   onto the end of the route    To insert a point into the route or add a point to the end     1  From either the Route Review or Active Route pages  use the ARROW KEYPA
36. 14    plastic  trolling motor  depth  temp   e 200 kHz  9    bronze  thru hull  depth  temp  speed   e 200 kHz  8    plastic  transom mount  depth  temp   e 200 kHz  8    plastic  transom mount  depth  temp  speed  e Speed Sensor   e Temperature Probe      10 ft  Extension cable for transducers   e 20 ft  Extension cable for transducers    Proper transducer installation is key to getting the best performance from your new unit  If the  transducer lead is too short  extension cables are available from your GARMIN dealer  DO NOT cut the Appendix G  transducer lead or any part of the transducer cable  as this will void your warranty  The cable cannot be  spliced and connected to any existing  GARMIN or non GARMIN  transducer cables        Mounting the Transducer    Following are some tips and basic installation instructions for three popular transducers  Detailed  installation instructions are provided in the transducer kits  Some transducers may need to be installed  by a professional marine installer     Transom Mount Installation    Transom Mount Transducer     DO NOT mount the transducer behind strakes  struts   fittings  water intake or discharge ports  or anything  that creates air bubbles or causes the water to become  turbulent  It is important that the transducer be in clean   non turbulent  water for optimal performance               Pa Mount the transducer cable cover  well above the waterline           Apply marine sealant to all  screw threads to prevent water  from
37. 2 Volt rechargeable Gel Cell battery for the portable case from a third party vendor  The maximum  size of the Gel Cell should not exceed 4   H x 2 5   W x 6   L  If using a Gel Cell battery  you can  anticipate approximately 40 hours of continuous operation between charges  Cold temperatures will  reduce battery life        Installing the D Cell Batteries   1  Disconnect the Red and Black leads   2  Install the batteries noting the correct polarity        3  Reconnect the Red and Black leads and place the battery pack  batteries down  in the provide  location within the case           Install the Battery Pack Installing a Gel Cell Battery   into the moulded Verify that the Gel Cell battery has male spade connectors installed on the positive and negative  location in the Portable kad     Case        1  Disconnect the Red and Black leads and remove the D Cell battery pack   2  Connect the Red and Black Gel Cell leads to the Red and Black wires in the portable case     3  Place the Gel Cell battery in the same location as the D Cell battery pack  The Portable Case was  designed to accommodate a 12 Volt Gel Cell battery and hold it securely in place     102    Understanding Sonar   If you are familiar with sonar  and can determine what is on the chart  this section may not be for Appendix H  you  This section is intended to help the novice user gain some understanding of how the GPSMAP 168  Sounder operates and how it can help improve their fishing productivity  Understanding So
38. ARK key    2  To return to the Map Page  press ENTER MARK again or press QUIT              The waypoint will    highlight    when  the cursor is moved over it     The cursor can also be used to create new waypoints right from the map display        To create a new waypoint using the cursor              1  Use the ARROW KEYPAD to move the cursor to a new position on the map that is NOT a map gi ee Hes ement  feature  such as a city  road or lake   N 3652 279 Di   2  Press the ENTER MARK key to capture the cursor position  The New Map Waypoint page appears  aI     i   3  Use the ARROW KEYPAD to highlight the waypoint symbol field to the left of the waypoint 695 2 343  name number    4  Press ENTER MARK to access the symbol page    5  Press UP or DOWN on the ARROW KEYPAD to select the    Shipwreck    symbol and press ENTER   MARK to confirm   S  Delete   6  Highlight    OK    at the bottom and press ENTER MARK again to save the waypoint  Waypoint numbering will start with    001 and continually count up  even if  the waypoint name has been deleted        Getting Started    Sonar Page    Data Fields    Adjustment           Bar ol  Fish Arch  Aa    aOR  Bottom          Whiteline os es f          Current  Setting  Ne                       The Sonar Page lets you use the GPSMAP 168 Sounder as a fishfinder  The top of the screen  contains any of 27 selectable data field options  while the middle of the page contains a right to left  moving sonar image of the water beneath your boat  
39. D to highlight the  point you wish to insert the new point before  to add a point to the end  highlight the blank field  at the bottom of the list      2  Press MENU  highlight    Add Waypoint    or    Insert Waypoint    and press ENTER MARK   3  From the    Find    list  select a point to be inserted added and press ENTER MARK     Remove Waypoint    Allows you to remove a point  waypoint or map item  from a route  This option  is available from both the Route Review and Active Route Pages   To remove a point from a route     1  From either the Route Review or Active Route pages  use the ARROW KEYPAD to highlight the  point to remove and press MENU     2  Highlight    Remove Waypoint    and press ENTER MARK     Invert    The Invert function will reverse the route you choose  This option is available from both the  Route Review and Active Route Pages     To invert a route   1  From the Route Review or Active Route page  press MENU   2  Using the ARROW KEYPAD  highlight    Invert    and press ENTER MARK     Plan Route    The Route Review and Active Route pages also display trip planning information for  each leg or the entire route  Available information includes Course  ETA  Fuel  to point   Leg Distance   Leg Fuel  Leg Time  Sunrise and Sunset  at point location  and Time To  point      To use the Plan Route feature     1  To select the desired planning figure  highlight the desired route from the Route List and press  ENTER MARK to display the Route Review page  If you have 
40. EMEMDE  Scng  eeaeee 43  Restore GARMIN  SEUD esisi 73  Route List Pa oan ne mane ene or 63  Route Review Page          cccccecceeeeeeereeeees 64  KOE en se crecus omic eeueoncorse 61 68  Routes  Activating     0   0  eee 12 63  ROUT SOP ANG nerie 63  Routes  CAINS ecserin 61 62  Routes  Deactivating sorsscoiinsiesanse 63  Routes  Deleting rsrs 63 67  Routes  Ei sossrscnir ane ties 64 67    Routes  Insert Add Turns  amp  Points    65 66       FRO tie ST TAD ssc sceoraercantnanemessata  67 Symbols  Waypoint Appendix J  Routes  Naning iadicetcniessapehdandoaudediareniden 64 System ModE esseere  Routes  Plan Route Geeesrtstssestanst etetett 67 T Index  Routes  Removing Points                   65 66  Routes  Reviewing Points                   64 65 HEV o kore    ogi 01  Sener eee eee eee eee x ow   NAN eee E 15  S Thermoclines                      14  38  107 WAAS LEE PATEE E EE A E A 23  Saele ky VIEW apara a0 Tie CDE 81 82 WaIMIN S  i ee eee eet tet oe  BO CTOH E A A 43 TidePage Settings a  atcotecctceoeeomenices  81 82 WaITAaMt yo    teeter ue  Se MAD ACA FOAL e 76 Time  Daylight Savings        0  0  0 0cee 72 Water Mode s    33  Sia  Ta E ee ee wo Tine 2101012  eee aan er nr 72 Water Speed  Calibrating                   43 44  Shallow Water Alarm          0 cccccccee D Tae Olei enn 85 Water Type   seers 43  ST IUpe IBS  aiciale ed BA eee nen nee 5 Ay  0 T e 72 Waypoint Lists   0    52 56  SHIN E o a EE EEE TMs MCB sararconsensuonsncidesstsnsscusecbines  58 59 67 Waypoint Opu
41. ENTER MARK key lets you quickly capture your present  position    or cursor or map item position    in order to create a new waypoint  You must have a  valid position  2D or 3D  fix to mark your present position  This can be determined by looking at  the Status Page  When you move the cursor over a map item  you will see a highlighted description  of that item     To mark your present position     l    Press and hold the ENTER MARK key until the    New Waypoint    window appears then release it   You will see a default three digit name and symbol for the new waypoint     To accept the waypoint with the default name and symbol  press ENTER MARK to confirm the  highlighted    OK    prompt   To enter a different name  highlight the name field and press the ENTER MARK key  then use the    ARROW KEYPAD to enter the new letter numbers and press ENTER MARK when done  Note  You  may use up to 10 alphanumeric characters for the name       To enter a different symbol  highlight the symbol field to the left of the name and press the    ENTER MARK key  then use the ARROW KEYPAD to highlight the new symbol and press  ENTER MARK     5  To enter an optional depth  highlight the    Depth    field to the right of the position coordinates  and press the ENTER MARK key  then use the ARROW KEYPAD to enter a value and press  ENTER MARK    6  When done  use the ARROW KEYPAD to highlight the    OK    prompt and press ENTER MARK to  save the waypoint into memory     Creating Waypoints Graphically   
42. GPSmap 68 Sound  i        a   e    SIRT fy       GPSMAP 168 Sounder        ult       chartplotting receiver   amp  depth finder    owner s  manual  and  reference  guide       Copyright 2000 2002  GARMIN Ltd  or its subsidiaries  All Rights Reserved    Software Version 3 03 or above    Internal Database Version 2 00    GARMIN International  Inc  1200 East 151  Street  Olathe  Kansas 66062  U S A   Tel  913 397 8200 or 800 800 1020 Fax 913 397 8282    GARMIN  Europe  Ltd  Unit 5  The Quadrangle  Abbey Park Industrial Estate  Romsey  S051 9AQ  U K   Tel  44 1794 519944 Fax 44 1794 519222    GARMIN Corporation No  68  Jangshu 2    Road  Shijr  Taipei County  Taiwan  Tel  886 2 2642 9199 Fax 886 2 2642 9099    Except as expressly provided herein  no part of this manual may be reproduced  copied  transmitted   disseminated  downloaded or stored in any storage medium  for any purpose without the express prior  written consent of GARMIN  GARMIN hereby grants permission to download a single copy of this  manual and of any revision to this manual onto a hard drive or other electronic storage medium to be  viewed and to print one copy of this manual or of any revision hereto  provided that such electronic   or printed copy of this manual or revision must contain the complete text of this copyright notice   and provided further that any unauthorized commercial distribution of this manual or any revision  hereto is strictly prohibited     Information in this document is subject to change
43. KEYPAD  highlight the desired option and press ENTER MARK     22    The following options are available     Start Stop Simulator    allows you put the unit in simulator mode  See the Getting Started Tour for  more on using simulator mode     Enable Disable WAAS    allows you to activate or deactivate WAAS     WAAS is an acronym for     Wide Area Augmentation System     You can use the WAAS capability to increase the accuracy of   the GPSMAP 168 Sounder  When enabled  the GPS receiver searches for a WAAS satellite  then  receives data that will help correct differentials in the GPS signal  When the unit is using WAAS data      WAAS    will be displayed in the    DGPS Revr field on the Status Page  and the receiver status will  indicate a 2D or 3D Differential Location     Currently  the WAAS system is not fully operational and there are only two satellites in place   one  over the Pacific Ocean and one over the Atlantic Ocean  You must have a clear  unobstructed view   of the sky for the GPSMAP 168 Sounder to be able to receive a WAAS signal  Even then  at times it  may not be possible to receive a WAAS signal  For more information on the WAAS system  visit the  Federal Aviation Administration web site at  gps faa gov      Track Up North Up    allows you to select between a north up or track up sky view display for  the Status Page only     Loran TD On Off    allows you to toggle the position coordinate format between latitude longitude  and Loran TD  Time Delays   For setup o
44. NEXT TIME TO NEXT    60 0   15   01 27    Navigating To  TOUR2                   Pointer Arrow    Compass Ring    Now that we re navigating to an actual destination  lets move on to the GPSMAP 168 Sounder  navigation pages by pressing the PAGE key     The GPSMAP 168 Sounder features two different navigation pages  Compass and Highway  The  Compass Page is first  This page provides graphic steering guidance to a destination waypoint  with an  emphasis on the bearing to your destination and current direction of travel  the Highway Page places  greater emphasis on the straight line desired course and the distance and direction you are off course    The middle of the page features a rotating    compass ring    that shows your course over ground  track   while you re moving  and a bearing pointer that indicates the direction of the destination  bearing  rela   tive to the course over ground  The compass ring and pointer arrow work independently to show   at  a glance   the direction of your movement and the direction to your destination  For instance  if the  arrow points up  you are going directly to the waypoint  If the arrow points any direction other than up   turn toward the arrow until it points up   then continue in that direction     The current speed and distance to the next waypoint as well as the time to the next waypoint are  displayed at the top of the screen  This page provides better steering guidance than the Highway Page  when travelling at slower speeds and or wh
45. NTER MARK   Proximity Alarms 2  Select the desired    ON    or    OFF    setting and press ENTER MARK     To clear one or all proximity waypoint s  from the list     1  Use the ARROW KEYPAD to highlight the proximity waypoint to clear and then press the MENU  key     2  To clear a single alarm  highlight the    Clear Alarm    field and press ENTER MARK   3  To clear all proximity waypoints  select the    Clear All    option and press ENTER MARK   4  Use the ARROW KEYPAD to highlight the    OK    prompt and press ENTER MARK to confirm     Proximity Circle Proximity Waypoint          Going to a Destination    Using the NAV MOB key  the GPSMAP 168 Sounder provides four ways to navigate to a destina   tion  Go To Waypoint  Follow Track  TracBack   MOB  Man OverBoard   and Follow Route navigation   Once you are actively navigating  you will see a straight line that always runs from the point where  navigaion originated  to the destination  The easiest method for selecting a destination is the    Go To     function  which lets you select a destination waypoint and quickly sets a direct course from your pres   ent position  If you have a waypoint highlighted on a list or the map     Go To  lt waypoint name gt     will  appear in addition to    Go To Waypoint     The    Go To    function can be accessed from a list of waypoints  or graphically from the map display           A dashed circle will appear showing  the alert boundary for the proximity  waypoints     56    To activate a   
46. OMIS Nav Line Track Nav Line Tab    Medien AUTO EER Small tk Heading Line    On Off  turns the Heading Line on or off  The Heading Line projects from the    Medium AUTO   Tide stations None AUTO triangle showing your current heading              Waypoints  Active Route                                                               none None AUTO Bearing Line    Auto  Off  20 ft 800 mi  sets the maximum scale at wihch the Bearing Line should  Navaids Medium         fn i  appear on the screen The Bearing Line shows the bearing from your current location to a destination  Waypoints Tab Points Tab    waypoint      Weppeints  Points  ITAIT  Track    seypoints  Points  Nav Line  ITTIA     Course Line    Auto  Off  20 ft 800 mi  sets the maximum scale at which the Course Line should  Zoom Text Zoom appear on the screen  The Course Line shows a direct navigation line from the point navigation  Lapel On   Seved Trecks AUTO was initiated to a destination waypoint   Bearing Line AUTO   Track Los AUTO  Course Line AUTO Track Tab    Saved Tracks  Track Log  Zoom setting  see the description on page 33 for details   Nav Line Tab Track Tab      Geo Tab    Geo Points  Rivers Lakes  Park Areas  aints  Points  Nav Line  Track RT  Points  Nav Line  Track  Geo  ITTI      Text and Zoom settings  see the description on page 33 for details   Text Zoom Text Zoom      Geo Points Medium AUTO  Major Contour Medium AUTO Topo Tab    Major Medium Minor Contours  Land Cover  Rivers  Lakes Medium AUTO  Mediu
47. OW KEYPAD to change the digits  and press RIGHT or LEFT to move to    the next number position  Press RIGHT at the end of the top line to move to the bottom line   4  Ifyou want to change the waypoint name  symbol or enter a depth  highlight the desired field  and press ENTER MARK  Use the ARROW KEYPAD to enter the new information and press         Delete ENTER MARK after the last character in each section   5  When you have finished  highlight    OK    and press ENTER MARK              New Waypoint Page  Reviewing and Editing Waypoints      es Map Once you have created and stored a waypoint  it may be reviewed  modified  moved or deleted at     005   Feature any time through the Waypoint Review and Waypoint Edit pages     N 385 1 338 ee Info Tab On the Waypoint Review page  you may change the name  symbol  position coordinates  or depth  From Current Location for the selected waypoint  show the waypoint on the map or delete the waypoint  If the selected  246 7  090   waypoint is located on a map item or a MapSource item  tabbed information pages for each map feature    will be displayed behind the Waypoint Review page  To review the tabbed information pages  use the   ARROW KEYPAD to highlight the desired tab  The Waypoint Edit page has all the same options   as the Waypoint Review page  except it does not include the tabbed information pages for waypoints  located on map features    Waypoint Review Page To access the Waypoint Review page    1 Use the ARROW KEYPAD to highlig
48. Precautions    MAP DATA INFORMATION  One of the goals of GARMIN  is to provide customers with the most complete and accurate  cartography that is available to us at a reasonable cost    We use a combination of governmental and private data  sources  which we identify  as required  in product literature  and copyright messages displayed to the consumer  Virtually  all data sources contain inaccurate or incomplete data to  some degree  This is particularly true outside the United  States  where complete and accurate digital data is either  not available or prohibitively expensive     Introduction       Software License Agreement    Software License Agreement    BY USING THE GPSMAP 168 SOUNDER  YOU AGREE TO BE BOUND BY THE TERMS AND  CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT  PLEASE READ THIS  AGREEMENT CAREFULLY     GARMIN grants you a limited license to use the software embedded in this device  the    Software     in  binary executable form in the normal operation of the product  Title  ownership rights and intellectual  property rights in and to the Software remain in GARMIN     You acknowledge that the Software is the property of GARMIN and is protected under the United  States of America copyright laws and international copyright treaties  You further acknowledge that  the structure  organization and code of the Software are valuable trade secrets of GARMIN and that the  Software in source code form remains a valuable trade secret of GARMIN  You agree not to de
49. R1 TOURS    Waypoint Distance 4 Course  gt              TOTALS 17 7 351        Active Route Page           Active Route     TOUR1 TOUR5S    Waypoini Edit on Map as  TOUR Insert Waypoint  017   PTOUR  Remove Waypoint  344   TOUR  Invert                        TOTALS 17 7   351                    Active Route Page Menu Options    Active Route Page  Whenever you have activated a route in the GPSMAP 168 Sounder system  the Active Route Page  shows each point  waypoint or map item  of the active route  with the point name  distance and choice  of Course  ETA  Fuel to point  Leg Distance  Leg Fuel  Leg Time  Sunrise and Sunset at point location   or Time To point for each point from your present position  The current destination point  the    active     point  is marked with an arrow icon  As you navigate a route  the waypoint list will automatically  update to indicate the next    active    point first  The Active Route and Route Review Pages share many  of the same features and options   The following route options are available from the Active Route Page   e Edit on Map    see page 65 for instructions   e Insert Waypoint    see page 66 for instructions   e Remove Waypoint    see pages 66 for instructions   e Invert    see page 67 for instructions   e Plan Route    see page 67 for instructions     e Re evaluate    recalculates and reactivates the current route data     Re evaluate    reactivates the current route and selects the route leg closest to your current position as  the 
50. RTCM SC 104 input  version  21     The following are the sentences for NMEA 0183  version 2 3 output  Approved sentences     GPRMC  GPGGA  GPGSA  GPGSV  GPGLL  GPBOD  GPRTE  GPWPL  SDDBT  SDDPT  SBMTW  and SDVHW  Proprietary sentences    PGRME  PGRMZ  and PSLIB  The GPSMAP 168 Sounder also  includes NMEA input with support for the WPL sentence     You can download a copy of GARMIN s proprietary communication protocol from the Help and  Support section of our website at www GARMIN com     Appendix G       Wiring and  Interfacing    If your boat has an electrical 10 18 Volt Boat Supply  system  it may be possible   to wire the unit directly to   an unused holder on your Install  current fuse block  If you are 2 Amp  using the boat s fuse block  Fuse  remove the in line fuse holder n4  supplied with the unit    If your boat does not have BEE  a fuse block  the unit can be Boal ye   wired directly to the battery   Make sure the 2 Amp in line  fuse supplied with the unit is  installed  Re    Complete information concerning NMEA  formats and sentences is available for  purchase from NMEA at    NMEA  Seven Riggs Avenue  Severna Pard  MD 21146  410 975 9425  410 975 9450  fax   www nmed org                               QQ     Wire    95    96    Appendix G       Selecting A Transducer       dead zone  fish not seen    Transducers    The transducer acts as the eyes and ears of your new sonar  Proper transducer selection and  installation are critical to the operation of your unit  Th
51. TER MARK when  you have finished changing the route name  press QUIT to return to the route list           S TALS 266  268      To change the route name  highlight the  name field  press ENTER MARK then use the    62 ARROW KEYPAD to enter a new name     Route List Page   The GPSMAP 168 Sounders Route List page displays all the routes currently stored in memory   along with a descriptive name for each route  Once a route has been created  it can be activated and  used for navigation with the NAV MOB key  A route may be followed in the same sequence as it  was originally created  or you can invert the route and navigate from the end waypoint back to the  beginning waypoint  From the Route list menu  you may choose    New Route     pg 61      Copy        Delete  Route     or    Delete All       To activate a route with the NAV MOB key     1  From any page  press the NAV MOB key  then using the ARROW KEYPAD  highlight    Follow  Route    and press ENTER MARK   If you highlight a route from the Route List or Route Review page  and press NAV MOB  the window will automatically display     Follow  lt the route name gt       2  Highlight the route you wish to navigate and press ENTER MARK     3  Choose    Activate    or    Invert and Activate    and press ENTER MARK      Activate    will use the route as  is     Invert and Activate    will reverse the route then activate it      To deactivate  stop navigation  of a route   1  Press the NAV MOB key  highlight    Stop Navigation    and 
52. Table of Contents       Introduction          How To    Index       The list to the right is provided to help you quickly find some  of the more important procedures you will use on your new  GPSMAP 168 Sounder     TO DO THIS  SEE PAGE S      Turn the unit on or off    oaoa aaa aaa aa aa 4 6 19  Initialize the GPS receiver  first time use     2 0 0    000 cece eee eee 4 5  Adjust screen contrast or backlighting                   0002000005  6 7  Enter data and select OPUONS sare susie vy euessageenee sa peewee ox 2 3  Operate the units function KeyS        c0 e0vvels ce ee eran eee cnwealens l  Mark your present location as a waypoint    n   n  naana anana 10  48  GOTO ACESHNALION   2 0  422 ho5deddanddamnersnvadesabents 11  56 60  Crea md Ose TOWNS arene nugvacee boo ty Oe EEE gene eayen eos 61 68  Learn about the Map page      0 0    cee ee  8 9  24 26  Pan using the Map ATOW nce tonne ca a eontcesedansestadenrs  avees 9 25  Zoom in or out on the Map page       0    eee  9 29  Reconfigure the Map page display                00 00 e eee eee  30 37  Access the Main Menu           00 00 cece cece tte teen eens 18  69  Change units of measure  statute  nautical  metric                   14 15  Change the displayed time  zone               0 0 cece eee medeis 72  Sel Boma TE  ps4  oases eed eee oue te Po pee pe E E eee OF  View tide information           0 0 0 0 0 0 00000 0000 cece 81 82  View celestial informati  ii 2 2445 00st veewden apn dadeewelsavesss 80  e a ee ee ene a ee
53. a     Comm Tab                Serial Data Format    Garmin Data Transfer    Garmin Data Transfer  GARMIN DGPS       Comm          Data Alarm   RTCM In Text Out e RICM In    allows DGPS input using a standard RTCM format  without any output capabilities   Transfer N    RTCM In NMEA Out    allows Differential GPS  DGPS  input using a standard RTCM format and  Progress also provides NMEA 0183 version 2 3 output           RICM In Text Out    allows Differential GPS  DGPS  input using a standard RTCM format and also  provides simple text  ASCII  output which contains time  position  and velocity data   e None    provides no interfacing capabilities        Serial Data Format    Garmin Data Transfer To select an input output format     Transfer Mode    a 1  Highlight the    Serial Data Format    field and press ENTER MARK    2  Use the ARROW KEYPAD to select the desired setting and press ENTER MARK    To select a transfer mode    1  Use the ARROW KEYPAD to select    GARMIN Data Transfer    in the    Serial Data Format    field   2  Highlight the    Transfer Mode    field and press ENTER MARK    3  Use the ARROW KEYPAD to select the desired setting and press ENTER MARK    Comm Tab Transfer Modess To restore the Serial Data Format settings to the default    GARMIN Data Transfer      1  From the Comm tab  press MENU  highlight    Restore Defaults    and press ENTER MARK         Request Almanac      Request Proximity   Comm   Request Routes    Alarm   Request Tracks                16   
54. a waypoint      To return to the Map Page  use the ARROW KEYPAD to highlight the    OK    button and press  ENTER MARK  or press the QUIT key     To create a waypoint with the cursor     1     Use the ARROW KEYPAD to move the cursor to the desired map position     2  Press and quickly release the ENTER MARK key  The    New Map Waypoint    page appears     3  To change the waypoint symbol  name or position coordinates  or enter a depth  use the ARROW  KEYPAD to select the desired field  then press ENTER MARK  Make your changes and press  ENTER MARK again to accept the changes     4  When you are finished making changes  or to accept the waypoint using the default 3 digit name  and symbol  highlight the    OK    button and press ENTER MARK to save the new waypoint     For more information  see    Creating Waypoints    on page 48     Selecting Map Scales   The map display has 28 available range scales from 20 ft  to 800 mi   6 mt  to 1200 km   The  map scale is controlled by the IN and OUT keys  with the current scale displayed at the bottom  right of the data window    To select a map scale    1  Press the OUT key to zoom out and the IN key to zoom in     A The scale value represents the distance from one end of the scale bar to the other     The GPSMAP 168 Sounders system has a built in worldwide database to 20 mi  with more detailed  coverage available through the use of the optional MapSource software  The GPSMAP 168 Sounder will  display cartography as long as there is char
55. active leg  The active leg defines the current    from    and    to    waypoints    To Re evaluate an active route    1 From the Active Route Page  press MENU    2  Using the ARROW KEYPAD  highlight    Re evaluate    and press ENTER MARK to recalculate     Main Menu Page       The GPSMAP 168 Sounders Main Menu Page provides access to various waypoint  system  naviga  Reference  tion and interface management  and setup menus in an easy to use    tab    format  The Main Menu  Page is available from any page in the GPSMAP 168 Sounder   s system  and is accessed through the Main Menu Tabs  MENU key     See pages 2 3 for additional instructions on changing settings and entering data   To access the Main Menu Page     1  Press MENU twice  Main Menu Tabs Submenu Tabs            The 14 Menu tabs are divided into categories by function   CITI By Name   Nearest  Proximity    To select a Menu tab from the Main Menu Page     1  Move the ARROW KEYPAD UP or DOWN to highlight the tab you want to view  The information  for the highlighted tab will automatically appear to the right                002  FISH 1    2  If you want to highlight any of the tab items  press to the RIGHT on the ARROW KEYPAD  then f a  move UP or DOWN to select individual items    GARHIN  3  You may then press either MENU for additional submenu options or press ENTER MARK to make   GRHEUR    changes to the highlighted item     4  Press LEFT on the ARROW KEYPAD to get back to the Menu tab list  Pressing QUIT will take  
56. alarm on and off     Fish    sets an alarm to sound when the unit detects a fish  Choose from 3 symbol settings  Large   Medium and Small Fish  Large and Medium Fish Only  Large Fish Only  Use the control field to  turn the alarm on and off     Battery    sets an alarm to sound when the unit reads a specific input voltage  Enter a voltage range  from 10 0 vDC to 16 0 vDC and use the control field to turn the alarm and and off     To set an alarm     1  Use the ARROW KEYPAD to highlight the field to the right of the alarm name you wish activate  and press ENTER MARK     2  Change the mode to    On     Distance or Time for the    Arrival    alarm  and press ENTER MARK     3  Highlight the next field to the right and press ENTER MARK  then enter the desired settings and  press ENTER MARK to finish     In order to hear an audible alarm  you must have the beeper turned on  page 73       Auto Range P Zoom Gain       2q       A Shallow Water Alarm    When an alarm is activated  a message will appear at the bottom of the display screen                 Reference    Main Menu   Alarm Tab                 Trip Arrival Time 00 00 15      Off Course Off 0 00    er Cheek On MOK         Shallow Water Off 0 0     Co f  Ta Deep Water Off 0   Fish                Arrival Time 00 00 15  Off Course  Off 0 00   Clock  CT 09 05       Shallow Water Off 0 0     c    _ Deep Water  Off 0 0    Celes Fish Off    Ec  Alarm Clock    Press ENTER MARK to acknowledge  an alarm and clear the message            
57. allows the user to determine how the chart will display underwater targets  and background information  If Fish Symbols are set to    Off     the unit will display all of the  available information about the underwater environment  If a fish symbol is selected  the chart    ff Fish Symbols Off    All available information will display only the information related to that symbol   will be displayed     So    pn    Whiteline    controls how the unit displays information about the bottom type  hard or soft    Suspended targets will display as fish symbols  With the Whiteline    Off  the bottom return will display as black and contain no information on  BAS ON AG OMA DOCH NEA bottom hardness  With Whiteline    On     the bottom return will become grayscaled and can be     u    Ieri   a  is  aoe      as a   used to determine bottom hardness  See page 38 for more detail on this feature   a    Same as above with the target depth attached   a     Scroll Speed    adjusts the speed that the chart scrolls from right to left  If you are sitting  a Suspended targets display as fish symbols  No still or the chart is moving too fast  slowing the scroll rate can be beneficial  Options are    Fast      background information will be displayed     Medium        Slow    or    Pause      an Same as above with target depth attached  A If you are using the GPSMAP 168 Sounder on the portable case battery power  slowing  the scroll rate will help to conserve your battery     42          Scale    con
58. an active route  you may also do the  following from the Active Route page     2  One of nine available planning figures appears to the right of each route waypoint and its distance   Use the LEFT RIGHT keys on the ARROW KEYPAD to select the desired item     3  To enter planning information  Press MENU  select    Plan Route    trom the options list  and press  ENTER MARK  Enter the figures for Speed  Fuel Flow  Depart ure  Time  and Depart ure  Date  Press  QUIT to return to the Route Plan Page     A Fuel flow rates on your unit are measured in    units per hour     System setting changes   for units of measure  statute  nautical or metric  do not affect the fuel flow measure   You should enter fuel flow rates based upon available information for your vehicle   operator s manual  performance specifications  etc   and make note of the desired units  of measure  gallons  liters  etc          Delete Route    deletes route and any map item points within route   To delete a route   1  From the Route Review page press MENU   2  Highlight    Delete Route    and press ENTER MARK and ENTER MARK again to confirm the deletion     Reference    Editing Routes       TOURS TOUR1    Waypoint Distance 4  Course   gt           Press LEFT or RIGHT on the  ARROW KEYPAD to change the data    field        TOUR1 TOURS       HISTON  Plan Route  Depart Time       n  m     m e m m     i m    TOTALS     17 7 337        Plan Route Data Fields       67    68    Reference       Active Route Page       TOU
59. an see that the fish is several feet from the tree  It is important to  remember that the fishfinder can not determine where in the coverage area the tree or fish are  only that  the returns were received in the same time frame              Enlarged  Transducer  View       Branches       Enlarged  Transducer  View    Example 2     Branches    Remember that the Fishfinder displays a 2D picture of the  underwater environment  The fish and tree could be located  anywhere in the coverage area at that time     105    Whiteline       Appendix H The GPSMAP 168 Sounder can help you to determine if the bottom is hard or soft  When the  sonar soundwaves are reflected back by the bottom  a hard bottom will return a stronger signal than  Understanding the Chart a soft bottom  The stronger bottom return  the wider the bottom layer is displayed  The unit uses the    whiteline function to make this bottom layer information easier to distinguish     When viewing the display without Whiteline active  the bottom return is black  While you can  make some determination of the bottom type  the black return makes this more difficult  With the    A whiteline active  the bottom return appears layered in shades of gray and black and makes determining  the bottom type easier and more reliable  Example 3 shows the bottom return with and without the  Whiteline can also help you to determine the type of bottom whiteline activated     structure that is displayed on the chart  By determining the  hardness 
60. arranty service  contact your local GARMIN authorized dealer  Or call GARMIN Customer Service  at one of the numbers shown below  for shipping instructions and an RMA tracking number  The unit should be  securely packed with the tracking number clearly written on the outside of the package  The unit should then  be sent  freight charges prepaid  to any GARMIN warranty service station  A copy of the original sales receipt is    required as the proof of purchase for warranty repairs     GARMIN International  Inc   1200 East 151st Street  Olathe  Kansas 66062  U S A   Phone  913 397 8200   FAX  913 397 0836    GARMIN  Europe  Ltd    Unit 4  The Quadrangle  Abbey Park Industrial Estate  Romsey  SO51 9AQ  U K    Phone  44 1794 519944   FAX  44 1794 519222    Designed for detailed electronic charting capability  the GARMIN GPSMAP 168 Sounder is a    powertul navigation device that can give you the navigation information you need  Introduction    Precision Performance    Capabilities    High contrast  four level gray  LCD screen with backlighting   12 channel parallel receiver tracks and uses up to 12 satellites for fast  accurate positioning  Differential Ready     just add an optional GARMIN beacon receiver for better than 5 meter  accuracy   Fully gasketed  high impact plastic alloy case  waterproof to IEC 529 IPX 7    Advanced Navigating and Plotting    500 alphanumeric waypoints with selectable icons   Built in Americas basemap to 20 miles includes detailed ocean  river and lak
61. ata fields    Small  3 Rows  Small text  12 data fields MapSource Info Page  e Medium  1 Row  Medium text  3 data fields    Medium  2 Rows  Medium text  6 data fields  e Large  1 Row  Large text  1 data field e Huge  1 Row  Huge text 1 data field    e Huge  2 Rows   Huge text with a compass ribbon at the bottom of the display  2 data fields    This option is available only on the Compass Page     35    To change the page layout        Reference 1  From the menu  use the ARROW KEYPAD to highlight the    Setup Page Layout    option and press  ENTER MARK   Map Page Options 2  Move up or down on the ARROW KEYPAD to highlight to the desired setting and press    ENTER MARK  To exit  press QUIT     e Change Data Fields     allows you to specify the type of data displayed in each data field used  on the map display     The following options are available for Map page data fields  and on the Highway and Compass pages         BEARING     Compass direction from your position to destination  e COURSE     Course over ground      DEPTH     Depth below transducer  only available with additional sonar NMEA data      DIST TO DEST   Distance to final waypoint      DIST TO NEXT   Distance to next waypoint      ETA AT DEST   Estimated Time of Arrival to final waypoint      ETA AT NEXT   Estimated Time of Arrival to next waypoint      ELEVATION   Elevation above below MSL  Mean Sea Level   Choose the size and number of data e MAX SPEED   Fastest speed the unit has traveled   fields you wish to di
62. ata fields may also be configured to  display any of 27 different information categories  see page 36 37 for the complete list   On the Highway  Page  lets change the    TO COURSE field to    TURN       To change a data field    1  Press the MENU key to display the Highway Page options    2  Press DOWN on the ARROW KEYPAD  highlight    Change Data Fields    and press ENTER MARK     3  Once the menu window disappears  use the ARROW KEYPAD and highlight    TO COURSE     then  press ENTER MARK    4  On the alphabetical list of options  press the ARROW KEYPAD UP or DOWN until you highlight     TURN    and press ENTER MARK     5  Press QUIT when done     Press PAGE to see the last page appearing in the main sequence  which is the Active Route Page   Whenever you have activated a route or TracBack  this page will show each waypoint name along with  useful data for each point  As you navigate the route  the information will automatically update to  indicate the next point along the route  which is denoted by an arrow on the left hand side of the  screen  For more detailed information on the Active Route Page  see page 68     As you ve seen  the primary pages provide status  map  and navigation information  The tours last  page is the Main Menu Page  which allows access to the GPSMAP 168 Sounders waypoint  route and  planning functions  various operational and navigation setup features  and celestial and tide data     The Main Menu is available from any page  and is accessed through 
63. ature or pop up a sub menu or list of yet more feature options  Just repeat this process to select  an option trom the list or press the QUIT key to return to the previous setting     The QUIT key when pressed  will move backwards through each step to the main page you  started on   To select and activate a function button     1  When moving about a page with function buttons  like the    New Map Waypoint    page  you will  observe functions such as    OK        Go To    and    Delete     To activate the function  highlight the desired  button and press the ENTER MARK key     Naming a waypoint or placing any sort of data that has not been predefined requires the use of  both the ARROW KEYPAD and the ENTER MARK key   To enter a name or number in a data field     1  Once you have accessed a page with programmable data fields  i e      Waypoint Edit     you can use  the ARROW KEYPAD to move the cursor  highlight  to fields on the page  Use the UP DOWN  arrows to move up or down and the LEFT RIGHT arrows to move sideways     Getting Started       Entering Data                                       o 5 o q   2  Pressing the ENTER MARK key with the field highlighted begins the process for entering data in N eS 28 3201 N 28 28 327  the form of alphanumeric characters      l A gt  Pressing UP or DOWN   3  Use the ARROW KEYPAD UP DOWN arrows to cycle through numbers 0 to 9  plus minus symbols      gt   N on the ARROW KEYPAD  blank space  and the alphabet  Pressing and releasing the ke
64. ave drifted out of the specified distance  range     Antenna Input Shorted To Ground    Check antenna wiring   connections or antenna replacement     Approaching Waypoint    You are a specified alarm distance from a  destination waypoint     Arrival At Waypoint    You have arrived at the destination waypoint     Basemap Failed Unit Needs Repair    Internal problem with the unit   Contact your dealer or GARMIN Customer Service  pg  iv  to have the  unit serviced     Battery Alarm    Specified amount of input voltage has been detected     86    Battery Voltage High Please Check Connection    Input DC voltage is too  high for unit    Battery Voltage Low Please Check Connection    Input DC voltage is too  low for unit    Boat is Not Moving Fast Enough to Calibrate    Speed wheel is not turning   Check for debris or boat speed is too slow    Database Error    Internal problem with the unit  Contact your dealer or  GARMIN Customer Service  pg  iv  to have the unit serviced    Deep Water Alarm    Specified deep water alarm depth has been detected  below transducer    Lost Satellite Reception    The unit has lost satellite signals  Check antenna  connections or try moving to a location with a clear view of the sky    Memory  RAM  Failed Unit Needs Repair    Internal problem with the unit   Contact your dealer or GARMIN Customer Service  pg  iv  to have the unit  serviced    Memory  ROM  Failed Unit Needs Repair    Internal problem with the unit   Contact your dealer or GARMIN Custome
65. cations for mounting the GA 29 antenna     carmi       The GARMIN antenna screws directly onto any standard 1    x 14 thread antenna mount  If you  need to raise the antenna to avoid shading  try using a 1    x 14 thread extension mast available at  most marine dealers     To install the GPS antenna        1  Screw the antenna directly onto the 1    x 14 thread mount     2  Route the cable to the mounting location of the display unit  Use the appropriate tie wraps  It is possible to route the coaxial cable either through or  fasteners and sealant to secure the cable along the route and through any bulkhead or deck  outside the antenna mount  The BNC connector on the  coaxial cable can be removed  and the coaxial cable  shortened to ease installation  If the BNC connector is  removed it must be replaced with a new crimp  compression  or solder on BNC connector  If you need assistance  please  contact GARMIN Technical Support at 913 397 8200     3  Once the GPSMAP 168 Sounder unit has been installed  connect the cable to the antenna connector  on the back of the display unit  Make sure that you turn the antenna cable connector 1 4 turn  clockwise to lock the cable into place     93    Appendix G       Unit Installation          Mounting Bracket    2       The Mounting Bracket is designed to be secured using a  flat head screw  If you use a screw with a countersunk  head  you risk damaging the Mounting Bracket     94       Mounting the GPSMAP 168 Sounder Unit    The GPSMAP 168 S
66. ce       Waypoint Options    Submenu Tabs          Waypt By Namel Nearest  Proximity    Route  Track 001    Trip      001  Time   Pages l   Map Delete Waypoint  Delete by Symbol  units    Delete All   Comm cem  for Main Menu  Alarm    TOUR   Celes    TOUR2    Tide  is   489 Available   11 Used                                 Waypoint List Status       Waypoint Submenus    The GPSMAP 168 Sounders Main Menu Page features three waypoint submenu tabs     By Name         Nearest     and    Proximity     that let you manage a large number of waypoints quickly and efficiently  The  submenu tabs also provide a continuously updated nearest waypoints list and a proximity waypoint  alarm function that can be used to define an alarm circle around submerged hazards  shallow waters   etc     To access the Main Menu Page Waypoint  Waypt  submenus   1  Press MENU twice  then highlight the    Waypt  tab using the ARROW KEYPAD  then highlight  the desired submenu tab   By Name Waypoint List    The first waypoint submenu list available from the    Waypt tab is the    By Name    list  which displays  a master list of all waypoints currently stored in memory  From the    By Name    list  you may review   edit  rename or delete individual waypoints  or delete all user waypoints  The total number of stored  and available waypoints is displayed at the bottom of the    By Name    tab  with the stored waypoints  arranged in numerical alphabetical order   The following options are available from the   
67. ck log point  so it   s a  good idea to clear the existing track log at the start of your current trip before you get started    To clear the track log and define a starting point for a TracBack route    1  Press the MENU key twice to display the Main Menu Page    2  Using the ARROW KEYPAD  highlight the    Track    tab  then highlight the    Active    tab to the right    3  Use the ARROW KEYPAD to select the    Clear    option and press ENTER MARK    4  Highlight the    OK    field and press ENTER MARK    You must first save the track log before you can use the    Follow Track    feature  The Save feature  allows you to store a track log from certain times and dates    To save a track log    1  From the Main Menu  use the ARROW KEYPAD to highlight the    Track    tab  then highlight the  Active    tab to the right    2  Use the ARROW KEYPAD to select the    Save    option and press ENTER MARK    3  From the    Save Back Through    window  highlight the desired time  date  or    Entire Log    and press  ENTER MARK     4  Next  the track will begin saving and then display the    Saved Track    window when done  The default  name  distance and number of points will be displayed  Highlight    OK    and press ENTER MARK  to save the track     To activate a TracBack using the NAV MOB key   1  Press the NAV MOB key  then highlight the    Follow Track    option and press ENTER MARK  Reference  2  Highlight the track you wish to follow and press ENTER MARK     3  Choose either    Ori
68. compile   disassemble  modify  reverse assemble  reverse engineer or reduce to human readable form the Software  or any part thereof or create any derivative works based on the Software  You agree not to export   or re export the Software to any country in violation of the export control laws of the United States   of America     WARNING    These products are intended for recreational fishfinding and as a aid for navigation and should not  be relied on as a substitute for official marine navigation charts  It is the users responsibility to be  aware of shallow water and underwater hazards and to exercise common prudence and navigational  judgment     FCC Compliance    The GPSMAP 168 Sounder complies with Part 15 of the FCC interference limits for Class B digital  devices FOR HOME OR OFFICE USE  These limits are designed to provide reasonable protection  against harmful interference in a residential installation  and are more stringent than    outdoor    require   ments     Operation of this device is subject to the following conditions   1  This device may not cause harmful  interference  and  2  this device must accept any interference received  including interference that may  cause undesired operation     This equipment generates  uses and can radiate radio frequency energy and  if not installed and used in  accordance with the instructions  may cause harmful interference to radio communications  However   there is no guarantee that interference will not occur in a particu
69. d route from another device has more than 30  points  Reduce the number of points    Running Simulator    The unit is in simulator  practice  mode    Shallow Water Alarm    Specified shallow water alarm depth has been  detected below transducer    Sonar Failed Unit Needs Repair    Internal problem with the unit  Contact  your dealer or GARMIN Customer Service  page  iv  to have the unit serviced   Track Already Exists   lt track name gt     You have entered a saved track name  that already exists in memory  Modify the track name or delete the previous  track name        Appendix C    Messages    Track Memory Is Full Can   t Create Track    Track log memory is full   No additional track log data can be stored without deleting old data to  create memory space     Track Truncated    A complete uploaded track will not fit into memory   The oldest track log points were deleted to make space for the most  recent data    Transducer Disconnected Sonar Turned Off    No transducer attached  or bad cable transducer    Transfer Complete    The unit has finished uploading downloading  information to the connected device    Water Speed Sensor is Not Working    Speed sensor is not detected   Check connections    Waypoint Already Exists   lt waypoint name gt     You have entered a  waypoint name that already exists in memory  Modify the waypoint name  or delete the previous waypoint name    Waypoint Memory Is Full Can   t Create Waypoint    You have used  all 500 waypoints available  Delete 
70. d the necessary data from the best satellites in  view to calculate a fix  the status field will indicate a 2D or 3D status  The unit will then update the  position  date and time     You can use the sky view to help determine if any satellites are being blocked  and whether you  have a current position fix  indicated by a    2D Navigation    or    3D Navigation    in the status field    The sky view shows a bird s eye view of the position of each satellite relative to the receiver s last  known position  The outer circle represents the horizon  north up   the inner circle 45   above the  horizon  and the center point a position directly overhead  You can also set the sky view to a    Track Up     configuration  causing the top of the sky view to align along your current track heading     Receiver Status  Accuracy and DOP    Reference       Receiver status is indicated at the top field of the page  with the current Accuracy and Dilution Of  Precision  DOP  to the right of the sky view  DOP is an indication of satellite geometry quality measured  on a scale of one to ten  lowest numbers the best  highest numbers the poorest   Accuracy uses DOP Status Page  and other factors to calculate horizontal position accuracy in feet or meters  The status field will show  one of the following conditions     e Looking For Satellites    the receiver is looking for any satellites     e AutoLocate    the receiver is looking for any satellite whose almanac has been collected  This  process ca
71. digits in the depth window  will flash on and off to alert the user that the unit is not tracking the bottom        Reference    Sonar Page    4 Auto Range  gt  Zoom Gain View Line   Range Adjustment    Range 4 4x Zoom   Gain View Line     z Ho zoom   Zoom Adjustment    hi 2x Zoom  4x Split    4x Zoom             2    Norma Gain Range Zoom Gain 4 Fixed View   Line  i   Auto Zoom View  g OR Adjustment  Auto  Manual Mode Auto Mode    Range Zoom Gain View 4 Depth Line  gt   Off       Depth Line  OR Adjustment   Off Selected        39       Reference    Sonar Page Options    Show Depth Line          a 3 Change Data Fields       Te  B        DEPTH  SPEED P   ARTE  40 2    0 0 _   357    50 4   Depth  5 93 H 38  51 339     249   H034  47 932             S     Use the ARROW KEYPAD to point to  an underwater target        40             Sonar Page Options  The GPSMAP 168 Sounders Sonar Page features a menu page that provides access to additional  functions and to layout and data field options     To display the Sonar Page options   1  Press MENU     To select a menu option   1  Use the ARROW KEYPAD to highlight the desired option and press ENTER MARK     The following options are available        Show Hide Pointer    allows you to reference sonar items and mark underwater waypoints  This  makes it easier to find and use an object such as a stump for a future fishing location  When using this  feature  the Sonar Page will pause  The pointer will not move off the paused display and can
72. e    A us Tide Station Map    From Other Location  5 2  063                 The Tide Station page will show a list  of avaiable Tide Stations  begining  with the station that is nearest to the  current GPS location              3 0              You may automatically search for the  nearest station and also view past  and future information     The name of the Tide Station nearest to your current location will appear in the    For field  You  must be within 100 miles of a tide station for a station name to be displayed  If you are not within this  range  a message    Search For Stations     will be displayed in the    For    field  To search for a Tide Station   highlight the    For    field and press ENTER  If no Tide Stations are found  pressing the MENU key will  display the search options     Nearest To Boat        Nearest To Other     If the unit is actively navigating  the  options    Nearest To Next        Nearest To Destination    will also be available     Nearest to Next    will display  Tide Stations nearest to the next active waypoint in a route     Nearest To Destination    will display Tide  Stations nearest to the destination waypoint in a route or an active Goto waypoint     Search for Tide Stations    Nearest To Boat       1  From the    Tide    tab  highlight the    For    field and press ENTER MARK    2  With the Tide Stations list displayed  press MENU    3  Using the ARROW KEYPAD  highlight    Nearest To Boat    and press ENTER MARK   4      A list will ap
73. e  Argentina   Canton Astro 1966  Phoenix Islands  Cape  South Africa   Cape Canaveral  Florida  Bahama Islands  Carthage  Tunisia   CH 1903  Switzerland    Chatham 1971  Chatham Island   New Zealand  Chua Astro Chua Astro   Paraguay    Corrego Alegre  Brazil    Djakarta  Dos 1968    Dutch  Easter Isld 67    European 1950    European 1979    Finland Hayfrd  Gandajika Base  GDA   Geod Datm    49  Guam 1963  Gux   Astro  Hjorsey 1955  Hong Kong    63  Hu Tzu Shan  Indian Bngldsh  Indian Thailand  Indonesia 74  Ireland 1965  ISTS 073 Astro    Johnston Island    Kerguelen Islnd  Kertau 1948  L C  5 Astro    Djakarta  Batavia   Sumatra Island   Indonesia     Dos 1968  Gizo Island   New Georgia Islands     Dutch  Easter Island 1967    European 1950  Austria  Belgium  Denmark   Finland  France  Germany  Gibraltar  Greece   Italy  Luxembourg  Netherlands  Norway   Portugal  Spain  Sweden  Switzerland    European 1979  Austria  Finland   Netherlands  Norway  Spain  Sweden   Switzerland    Finland Hayford  Finland  Gandajika Base  Republic of Maldives  Geocentric Datum of Australia  Geodetic Datum    49 New Zealand  Guam 1963  Guam Island  Guadalcanal Island   Hjorsey 1955  Iceland   Hong Kong   Taiwan   Indian  Bangladesh  India  Nepal  Indian  Thailand  Vietnam  Indonesia 1974 Indonesia   Ireland 1965  Ireland   ISTS 073 ASTRO    69  Diego Garcia    Johnston Island Kandawala  Kandawala  Sri Lanka    Kerguelen Island  West Malaysia  Singapore    Cayman Brac Island    Liberia 1964  Luz
74. e  necessary to use the unit to its fullest potential     Part Two is divided into sections that provide detailed references to the advanced features and  operations of the GPSMAP 168 Sounder  This allows you to concentrate on a specific topic quickly and  look up detailed information about the GPSMAP 168 Sounder     Customer Service Product Registration       Help us better support you by completing our on line registration today  Have the serial  number of your GPSMAP 168 Sounder handy and connect to our website  www garmin com   Look for  the Product Registration link on the Home page  Also  be sure to record your serial number in the area  provided on page iv of this manual     A NOTE  If you have previously registered a GARMIN product purchase using a mail in  registration card  we invite you to re register using our NEW on line system  Many   services provided by our new product registration system are now being automated    Re registering your purchase ensures you the best possible support from GARMIN     The GPS system is operated by the United States government  which is solely responsible for  its accuracy and maintenance  The system is subject to changes which could affect the accuracy and  performance of all GPS equipment  Although the GARMIN GPSMAP 168 Sounder is a precision  electronic NAVigation AID  NAVAID   any NAVAID can be misused or misinterpreted and  therefore   become unsafe     The electronic chart is an aid to navigation and is designed to facilitate 
75. e coastlines  cities   interstates  US state highways and local thoroughfares   20 reversible routes with up to 30 waypoints each   Uploadable maps up to 2 5 Megabytes of data using GARMIN   s MapSource PC products  Coordinates  Lat Lon  UTM UPS  Loran TD  plus 15 grids  including Maidenhead   TracBack route feature which allows you to quickly retrace your track log to a starting position  Built in simulator mode    Superior Fishfinding Ability    Whiteline feature provides a clear image of both bottom hardness and structure  See Thru technology which helps separate fish returns from thermoclines and structure  Four zoom levels with a moving view window   Underwater waypoint marking   Map Sonar split screen combines navigation and fishfinding information   Fish and depth alarms       yii    Introduction       Packing List    GPSMAP 168 Sounder  Standard and Optional Transducers    Unit part numbers 010 00199 00 and 010 00202 00  include a 200 kHz  20 degree  plastic  depth and temp   transom mount transducer  For a complete list of optional  transducers  see page 93     viii    Before installing and getting started with your unit  please check to see that your package includes  the following items  If any parts are missing  please contact your GARMIN dealer immediately     Standard Package     GPSMAP 168 Sounder Unit   Bail Mount with knobs   Mounting Bracket    Mount Bracket with Internal Antenna     GA 29 Remote Marine Antenna with 30    cable and BNC connector   Power Data
76. e desired  depth range is displayed on the adjustment bar or shows on the depth scale in the lower right  side of the page     2  Press ENTER MARK or press LEFT or RIGHT on the ARROW KEYPAD to confirm the selected  range    To switch from manual to auto mode    1  With the    Range    field highlighted  press the ARROW KEYPAD UP or DOWN until the selection  arrow points to    Auto    or    Auto    is displayed on the adjustment bar    2  Press ENTER MARK or press LEFT or RIGHT on the ARROW KEYPAD     Another useful feature of the GPSMAP 168 Sounder is the sonar zoom  which allows you to  instantly    zoom in    to look at a specific portion of the sounder display by using the either the IN or  OUT key  The Zoom function is divided into four display levels     2X Split   Shows two reduced size sonar pictures at the same time  The right half of the display  screen shows the complete sonar picture at its original scale  The left half shows a portion of the  original picture at 1 2 depth scale    2X Zoom   Displays the 2X zoomed picture on the full GPSMAP 168 Sounder screen and does not  show the original scale picture    4X Split   Shows two reduced pictures  with one at the original depth scale and one at 1 4 the  original depth scale    4X Zoom   Displays only the 4X zoomed picture on the full GPSMAP 168 Sounder screen     Once activated  the zoomed picture becomes the Sonar Page display  Note  The Zoom function can  be deactivated by pressing the OUT key until the    No Zoom 
77. e first    0    is now highlighted     Press LEFT on the ARROW KEYPAD to clear the name field     Press the UP or DOWN arrow of the ARROW KEYPAD until the letter    D    appears  and then press  the RIGHT arrow key to go to the next space to the right  then UP or DOWN again until O   appears   Repeat this until you have entered the name    DOCK     If you make a mistake and select an incorrect  character  simply press LEFT on the ARROW KEYPAD to backspace the cursor and then UP or  DOWN to correct the entry  If you accidentally press ENTER MARK before you are done  simply  press ENTER MARK again and move the highlight to where you left off       After you have entered all the letters  press ENTER MARK to confirm the name     To access the waypoint symbol menu  highlight the waypoint symbol field which is to the left of the    waypoint   s name and press ENTER MARK  Note  The default symbol is a dot       You will see an alphabetical list of available waypoint symbols to choose from  Press the ARROW    KEYPAD UP or DOWN until you highlight the ANCHOR    symbol  You will see a scroll bar on the  right of the window indicating your current position on the entire list of symbols     8  Press ENTER MARK to confirm the ANCHOR    symbol   9  Highlight    OK    at the bottom of the window and press ENTER MARK again to confirm the    OK       prompt and save the waypoint  You may also press QUIT to not save the waypoint     The waypoint is now stored in memory  Note that waypoints may
78. e first and last waypoints in the route    To enter a custom route name    1  From the Route Review Page  highlight the name field and press ENTER MARK to begin editing    2  Use the ARROW KEYPAD to enter the desired name and press ENTER MARK when finished    Once you are on the Route Review Page  you may review the route points  waypoints or map  items  one at a time from the list    To review individual route points    1  Highlight the desired point and press ENTER MARK     2  On the    Waypoint Review    window  you may choose    Next     highlight the next point on the route  list      Delete     permanently delete the waypoint from the unit  or    Show On Map    and press ENTER   MARK     If the route point is a map item  you may choose    Create Waypoint    to turn it into a permanent  waypoint  Once you are back on the route point list  the next point in the route will automatically  be highlighted  This allows you to review each point on the route by pressing only ENTER MARK  repeatedly     Route Review Menu Options  Menu options available from the Route Review Page are Edit on Map  Insert Add Waypoint   Remove Waypoint  Invert  Plan Route  and Delete Route     Edit on Map    this option allows you to review and modify the route displayed through a pop up                window menu for each point  waypoint or map item  on a map page  You may also use the cursor to Reference  insert a new route point on a route leg  and review the waypoint or map item   To edit the rou
79. e settings of any of the five fields  highlight the field  press ENTER MARK  select enter    the desired setting and press ENTER MARK   4  When done  press the QUIT key to return to the Main Menu   To setup Loran TD from the Status Page     1  Press MENU  then use the ARROW KEYPAD  highlight the    Loran TD On    and press ENTER   MARK     2  To change the settings of any of the five fields  highlight the field  press ENTER MARK  select enter    the desired setting and press ENTER MARK   3  When done  press the QUIT key to return to the Status Page     If the active GRI Chain  secondary stations or offsets have been changed since the waypoint was  created  the waypoint will now reference the active GRI chain and secondary stations and adjust the  TD coordinates accordingly  Remember that the GPS is not relying on the Loran signal for navigation  and actually converts the TD coordinate to a useful LAT LON coordinate  in the background  before  storing the waypoint to memory or using it for navigation  Because of this  the unit can navigate to a  TD coordinate anywhere in the world     The chart below gives an approximate UTC  Universal Time Coordinate  time offset for the various  longitudinal zones  Check with local charts for more detailed information  If you are in daylight savings  time  add one hour to the offset     Appendix B       Longitudinal Zone Offset Longitudinal Zone Offset Time Offsets  W180 0   to W172 5    12 BOOT  to B022 5       W172 5   to W157 5    11 EQ22
80. e that the map will automatically begin to move slowly      Track    and    Speed    fields only show keeping your boat centered on the display  The direction of movement  also called    track     will be  while in simulator mode  controlled by the simulator     You ll now have a clearer picture of the route you are navigating  Keep in mind that whenever you  do exceed the usable range of the built in database or the optional MapSource data in use  the range  field will display    overzoom    or    NO MAP    to indicate that you should exercise extreme caution using the  map data  Press the IN key to zoom into the 2 nm scale  Now that you   ve zoomed in a little closer to i     your route  you can pan ahead of your vessel with the cursor to review map items and create on screen Reviewing  Creating  waypoints  Try moving the cursor to highlight the    TOUR3    waypoint    just use the ARROW KEYPAD Map Waypoints  to move the cursor as close as possible to the waypoint   To move the cursor in small increments  try Te fo t  a series of short key presses           Getting Started       NH 35  04 371   Once the cursor is over the TOUR3 waypoint  you ll notice that the waypoint symbol and name will Hore 29 798    become highlighted or    selected     The data field at the top of the page will display the waypoint name   the range and bearing from your present position  and the coordinates for the waypoint    To review the waypoint page for a selected waypoint    1  Press the ENTER M
81. e transducer transmits sound waves toward  the bottom in a cone shape  The larger the cone angle  the larger the coverage area at a given depth   While it is good to see as large of an area as possible  it is best to select a transducer that suits the  water that you are on    A wide cone angle transducer works best in shallow water  The wide cone angle provides a large  coverage area  but at a decreased bottom resolution  In deeper water this can result in a large dead zone  where fish cannot be seen  A narrow cone angle transducer is better suited to deep water installations   The narrow cone angle provides a smaller viewing area  compared to a wide cone angle transducer at  the same depth  with improved bottom resolution and a smaller dead zone    Included in the package is a 20   cone angle  temperature sensing  transom mount transducer  This  transducer provides good all around performance  Listed below are a variety of optional transducers  and accessories which are available from your local dealer or GARMIN        200 kHz  20    plastic  transom mount  depth only   e 200 kHz  20    plastic  transom mount  depth  temp   e 200 kHz  20    plastic  transom mount  depth  temp  speed  e 200 kHz  20    plastic  in hull  depth only  0   rise      200 kHz  12    bronze  thru hull mount  depth only   e 200 kHz  12    bronze  thru hull mount  depth  temp   e 200 kHz  12    plastic  thru hull mount  depth only   e 200 kHz  12    plastic  thru hull mount  depth  temp      200 kHz  
82. ea of what the  receiver is doing at any given moment  The sky view and signal strength bars give you an indication of  what satellites are visible to the receiver and whether or not they are being tracked  The signal strength  is shown on a bar graph for each satellite  with the satellite number below  As the receiver locks  onto satellites  a signal strength bar will appear for each satellite in view  with the appropriate satellite  number  01 32  underneath each bar  The progress of satellite acquisition is shown in three stages     e No signal strength bars    the receiver is looking for the satellites indicated   e Light signal strength bars    the receiver has found the satellite s  and is collecting data        Dark signal strength bars    the receiver has collected the necessary data and the satellite s  are ready  for use     Each satellite has a data transmission that must be collected  light bar status  before that satellite  may be used for navigation  dark bar status   When the receiver is looking for a particular satellite   the corresponding signal strength bar will be blank and the sky view indicator will not be highlighted   Once the receiver has found the satellite  a light signal strength bar will appear  indicating that the  satellite has been found  When the receiver has collected data from the satellite and locked on  the  number in the sky view will appear highlighted and the status bar will become dark     As soon as the GPSMAP 168 Sounder has collecte
83. eated properly in the back of the unit  the Red and Black  wires are connected to the correct polarity  and that the 2 Amp fuse is installed and not blown  If the  unit is connected to a power supply that exceeds 18 VDC  a    Battery Voltage High    warning will be  displayed and the unit will turn off     As the unit powers on  it should immediately start showing the bottom  Verify that the unit is  not in the simulator mode  If the unit is in the simulator mode  make sure that the transducer is  connected to the wiring harness     To test the transducer installation  gradually increase the boat speed while checking the unit  operation  If the unit displays intermittently or fails to display  verify that the transducer is aligned  parallel with the bottom and if necessary  adjust the transducer height until the unit operates correctly   It may be necessary to make several adjustments to ensure proper operation throughout the speed    range     A When adjusting the depth of the transducer  make the adjustments in small increments   Placing the transducer too deep can adversely affect the boat s performance and put  the transducer at greater risk of striking underwater objects     The Portable Case    The Portable Case is designed for rugged use and provides storage for the Battery Pack  the Portable Appendix G  Suction Cup Transducer and a mount for the GPSMAP 168 Sounder        ue ti ee Da bee et cp eee eee a GPSMAP 168 Sounder Portable  Use the two square eyelets located by
84. en anecnncnse  34  Bearing Distance Measuring             00 31  PE D E E eases ase i  C   1 0  1010 ICS are a vii  Seeger ene A eee eee eee ii  STD EE A EA 80  Clock AlAT aeei 78  Compas PA E eena LO   Compass Page Options                   eee 45  Contrast SEMINE ise ma ctcadscreueracenstameagents 6  COUTE CIDG ae ene etre enna emer re 34  Cursor Movement            0  0c 00eeees 9  25 26    D   PATE e EA 2 3  Data Fields  Changing sissepsnresss 36 37  Data Tani CT a nn en ee eee 76  Date LIME esn a 20 72  Darni Ma eeri 74  88 89  Daylight Savings TIME seice la  Deep Water Alai saner 78  DO G eee 14  38 39 41  Bao aee l E ee eee ee 14 38 43  BE U e S 75  DGPS Interface Settings               8  76 78  DGPS T ear 20 22  77  Dilution Of Precision  DOP                     21  Distance  Speed and Elevation                 71  E   ENTER MARK Key    vsisi 1 48  F   WCET Tis cen tnga serene E 73   ks Wa 21d eee nee eee eee eee ae T8  Pien DOl iieri nE seosandennees 42  E E EE EEN 14 31 38 41  Follow Irac Kesesi 58 59  Follow ROUTE sorcen nS 12 63  Pael TION seene ony eevsvemen sce nonce 67  Pall ere e r 30    Appendix J  Index   G   CA E E ER 39  GO lo Way POI sccccecepacccedescsscntes 54 56 57  Going to a Destination        0      004 11 56  H   TCA E EEE EE 75  Heading TINC csini 34  Highway Page siaianeiiecsrrasn 16 18  46  Highway Page Configuration                   4  Highway Page Options secties 46 47  How O TUe Reess ee ix  I   IN Key nnn l  Taitai ZANT erne ia 4 5 21  Tas
85. en making frequent directional changes  When you are not  navigating to a waypoint  the compass will show your direction of travel as you move but the arrow will  not appear  Note  Due to Selective Availability error  it is possible for the compass to point in the wrong  direction when stationary or at very low speeds     Lets move on to the Highway Page by pressing the PAGE key     The GPSMAP 168 Sounders Highway Page also provides graphic steering guidance to a destination  waypoint  As you head toward your destination  the middle of the screen provides visual guidance to  your waypoint on a moving graphic    highway     Your present position is at the bottom center of the  highway display  The line down the middle of the highway represents your desired course  As you  navigate toward a waypoint  the highway will actually move   indicating the direction you re off course   To stay on course  simply steer toward the center of the highway or    keep it on the road     The six  default data fields at the top of the page indicate Speed  Distance To your destination  or the next  waypoint in a route      To Course     which shows the bearing to get you back on course   the distance  you are    Off Course     Time To the Next waypoint  and the compass Track you are heading  Use the  Highway Page as your primary navigation page  in lieu of the Compass Page  when your main concern  is following a defined course     When the GPSMAP 168 Sounder is in simulator mode  you can also adju
86. er in the epoxy  turning the transducer to work out any air bubbles     3  Weight the transducer in place and allow to cure for 24 hours     Trolling Motor Installation  Included in theTrolling Motor transducer kit you should have   1  Worm Gear Clamp  2  Cable Ties  3  Transducer  Mounting the Transducer   1  Loosen the Worm Gear Clamp until the end of the band is clear of the worm gear   2  Slide the clamp band through the slots on the transducer     3  Place the free end of the clamp band into the worm gear and tighten until the band is through  the worm gear     4  Place the clamp and transducer over the body of the trolling motor  Finish tightening the clamp to  secure the transducer to the trolling motor     5  Secure the transducer cable to the trolling motor shaft using the supplied cable ties        A If you are experiencing interference while the trolling motor is operating  try installing  the transducer cable at right angles to the trolling motor power cables     Appendix G    Mounting the Transducer    Cable Ties       Worm Gear a    Clamp Band    Slide the Clamp Band through  slots on the Transducer       99    100    Appendix G       Testing the Installation       Testing the Installation    While it is possible to perform some checks with the boat trailered  the boat should be in the  water to properly test the installation     Press the POWER button and the GPSMAP 168 Sounder should power on  If the unit fails to  power on  verify that the wiring adapter is s
87. et  RMS with optional GARMIN  DGPS receiver    0 1 knot RMS steady state   Og s   150 watts  RMS   1200 watts  peak to peak   200 kHz    10 18v DC  10 watts max   AGC 3AG   2 Amp    Installing the GPSMAP 168 Sounder    The GPSMAP 168 Sounder must be properly installed according to the following instructions to  get the best possible performance  If you have the 168 Sounder with the built in internal bail mount  antenna  010 00202 00   you may skip this section and proceed to the next page  For units purchased Antenna Installation  with the external GA 29 antenna  010 00199 00   follow the instructions below  To complete the  installation  you ll need the appropriate fasteners and a 1    x 14 thread marine antenna mount available  at most marine dealers     Appendix G       BEST    BETTER                   Mounting the GPS Antenna ae   The antenna should be mounted in a location that has a clear  unobstructed view of the sky in all  directions to ensure the best reception  Avoid mounting the antenna where it will be shaded by the N m  boats superstructure  a radome antenna  or mast  The GPS antenna should be mounted about 2 5 3  feet away from the radar dome  Sailboat users should avoid mounting the antenna high on the mast  to prevent inaccurate speed readings caused by excessive heeling  Most marine VHF and LORAN  antennas should not seriously degrade the GPS antennas reception  Never paint the antenna or clean  it with harsh solvents                             Suggested lo
88. evation readouts in    Nautical     nm  kt  ft      Statute     mi  mh  ft  or    Metric     km  kh  mt  terms     e Depth    lets you select the desired units of measure for depth in Feet  ft   Fathoms  fa  or Meters   mt         Temperature    lets you select the desired units of measure for temperature in Fahrenheit    F  or  Celsius    C      1     Comm  Communications  tab    lets you control the input output format used when connecting       Reference our GPSMAP 168 to external NMEA devices  a DGPS beacon receiver  a personal computer  another  y P p  GARMIN GPSMAP 168 168  etc  Eight format settings are available   Main Menu  e GARMIN Data Transfer    the proprietary format used to upload download MapSource data     exchange waypoint  route  track  almanac  and proximity data with a PC or another GARMIN  GPSMAP 168 168  When you select    GARMIN Data Transfer  there are 11 Transfer Modes to  choose from  Host  Request Almanac  Request Proximity  Request Routes  Request Tracks  Request  Waypoints  Send Almanac  Send Proximity  Send Routes  Send Tracks and Send Waypoints    e GARMIN DGPS    used to connect the GPSMAP 168 with a GARMIN DGPS beacon receiver    e NMEA In NMEA Out    supports the input output of standard NMEA 0183 version 2 3 data  and  sonar NMEA input support for the DPT  MTW and VHW sentences  See Appendix I on page 108  for the Advanced NMEA Setup feature       Text Out    outputs simple text  ASCII  output which contains time  position  and velocity dat
89. evu Fiji  Islands    Wake Eniwetok  Marshall  World Geodetic System 72  World Geodetic System 84    Zanderij  Surinam    89    90    Appendix E       Navigation Terms    Altitude    Height above mean sea level  MSL     Avg Speed    The average of all second by second speed readings since last reset    Bearing  BRG     The compass direction from your present position to a destination waypoint   Course    The desired course between the active    from    and    to    waypoints    Distance  Dist     The    great circle    distance from present position to a destination waypoint     Dist to Dest    The    great circle    distance from present position to a GOTO destination or to the  final waypoint in a route     Dist to Next    The    great circle    distance from present position to a GOTO destination or to the  next waypoint in a route     ETA    Estimate Time of Arrival  The estimated time you will reach your destination waypoint  based  on current speed and track     ETA at Dest    The estimated time you will reach a GOTO destination or the final waypoint in a  route     ETA at Next    The estimated time you will reach a GOTO destination or the next waypoint in a  route     Fuel    The fuel required to travel from present position to the indicated route waypoint   Leg Dist    The distance between two route waypoints     Leg Fuel    The fuel required to travel from a route waypoint to the next waypoint  in sequence   in the route     Leg Time    The time required to travel fro
90. f Loran TD  see pages 83 84     AutoLocate    allows the receiver to locate your position automatically  This process can take up  to five minutes     Initialize Position    allows you to initialize the receiver graphically on the Map Page to initially help  the receiver acquire more quickly  See pages 4 5 for instructions on initialization     Set 2D Elevation    allows you to manually enter the altitude when in 2D Navigation or Simulator  mode only  Any altitude entered will be automatically calculated when the GPS is in 3D Navigation  mode     Reference    Status Page Options             Acquiring Satellites  H  2x Accuracy                Status Page Options       23          Reference    Map Page    Data Fields        DIST TO NEXT NJFOINTER  n                     Map Page    The GPSMAP 168 Sounders Map Page provides a comprehensive display of electronic cartography   plotting and navigational data  When using the unit with the optional MapSource software  the map  display shows your boat on a digital chart  complete with geographic names  map items  navaids and a  host of other chart features  It also plots your track and displays any routes and waypoints you create   An on screen cursor lets you pan and scroll to other map areas  determine the distance and bearing to a  position  and perform various route and waypoint functions     When the cursor is active  an additional data window will appear below the data fields to indicate  the position  range and bearing to the cu
91. from either the  Status Page or Units Tab on the Main Menu                   nor    Swedish Grid   7                T rayi   st   Swiss Grid  different GRI chain and or secondary stations and still navigate to the location stored in memory  Units     Taiwan Grid  Comm  The Loran Position Format field is located under the    Units    tab in the Main Menu  The    Loran Aera  TD Setup    window contains the fields to select the Loran GRI Chain Number  Primary and Secondary Tide iW Malayan RSO        Stations  and TD Offsets        83       Appendix A    Loran TD          Position Format    Loran TD    Loran TD Setup    s Loran Chain Number                Loran TD Setup Page             3D Navigation         Loren 1D Setup    Loran Chain Number      CED    MET YL  p ofseta  GRI_9007  GRI_9610 P ffsete    GRI_9940       TL cri_9960                Selecting the Loran Chain Number     When inputting Loran coordinates  you must have the correct chain number  secondary  station identifiers  first and second   and proper map datum available for the TD  coordinates you input into the GPS unit  For better position accuracy  navigate to the  Loran point  then re mark the point with a GPS unit in LAT LON format     To setup Loran TD from the Main Menu     1  Using the ARROW KEYPAD  highlight the    Units    tab and then the    Position Format    field and  press ENTER MARK     2  Highlight    Loran TD     press ENTER MARK  then highlight    Setup    and press ENTER MARK     3  To change th
92. g Started tour  For detailed instructions on using these features or performing a specific task   please refer to the Quick Reference Guide or the appropriate reference section of this manual    To turn off the GPSMAP 168 Sounder    1  Press and hold the POWER key for about 2 seconds  until the screen is blank    2  When the screen is blank  release the POWER key     The next section of the manual describes the pages and functions of the GPSMAP 168 Sounder  in detail  If you are unable to locate a specific option or function  please refer to the index on pages    105 107  Thank you for choosing the GARMIN GPSMAP 168 Sounder navigation unit  We hope it will    be a useful and fun tool for you wherever you go     Getting Started    Deleting Track Logs   Powering Off Unit    Submenu Tabs               Active Saved          Resolution 82                    Submenu Options       Reference       Status Page    Receiver Status             3p Navigatio          Signal Strength Bars      Accuracy  F S ag  Sky View  tn ma      a4 m JE   o2 03 07 08 11 1 paron     DOP  NE FA nijl S  gt  DGPS           Date 24 JAN 00    N  38  91 343  W094  4 7 928        01 25 51   Ie          Position Coordinates    Ready for use       Collecting data       Searching for signal    20    Status    Time    Status Page    The GPSMAP 168 Sounder Status Page provides a visual reference of satellite acquisition  receiver  status  date  time and position coordinates  The status information will give you an id
93. g course  speed over ground  and bearing and distance to the cursor or a  particular waypoint  The current map scale setting is located at the bottom right of the page     Using the Map Cursor   Working from the Map Page is a simple process that centers around the use of the cursor   Controlled by the ARROW KEYPAD  the cursor is an important tool that can be used to pan to  other map locations  mark and edit waypoints and routes  and review position data of on screen map Map Cursor  items and waypoints     Getting Started       To get a feel for using the Map Page and using the cursor  try the following exercise     1  Use the IN OUT keys to set the map scale to the 50 nm setting  Your boat should be near the center  of the map  at the receiver s last known position   If your boat isn   t where it should be  make sure  that you have initialized the receiver and acquired a position as described on pages 1 2     2  Use the ARROW KEYPAD to move the cursor  Notice how another data field appears at the  top of the page  showing the bearing and distance trom your boat to the cursor  along with the  latitude longitude of the cursor    3  Press the QUIT key to remove the cursor and re center your boat on the map display     As you become more familiar with the cursor  you ll see that the map display actively scrolls or     pans     letting you explore areas around the world and create waypoints and routes  Wherever you  move the cursor  you ll always be just one QUIT keystroke away f
94. ge Options    e No Signal    DGPS receiver attached  but not transmitting RTCM data to GPS   e Tuning    Receiver is tuning manual frequency   e Scanning    DGPS receiver is scanning for available frequency   e Rcving    Unit is receiving DGPS corrections      Chk Wiring    DGPS is enabled in Comm menu  but no DGPS receiver attached or bad corrections    e WAAS    The unit is receiving    WAAS data  DGPS Receiver Status                      Dhia The Differential SNR  Signal to Noise Ratio  indicates  on a scale to 0 30db with 30db being the  raat ltl   best  the strength of the DGPS signal being received  If no optional DGPS receiver is used with the   E il t     GPSMAP 168 Sounder  the    DGPS Revr field will display    Off    and the    DGPS SNR    field will be blank   Ti p    sean The SNR will depend upon the mounting of your DGPS receiver and the distance from the DGPS  eg Desi transmitting station   24 JAN 00 01 25 51             Many features of the GPSMAP 168 Sounder are menu driven  Each of the main pages has an  options menu  allowing you to custom tailor the corresponding page to your preferences and or select  special features that specifically relate to that page     N 38  91 343     W094  4 7 928    SNR Strength             The GPSMAP 168 Sounders Status Page features an options menu that provides access to functions  and features relating to the Status Page     To display the Status Page options    1  Press MENU    To select a menu option    1  Using the ARROW 
95. ginal     which will navigate you from the end to the start of your trip  or    Reverse      which will navigate you from the start to the end of your trip and press ENTER MARK        TracBack Navigation    Total  number    Default  Once a TracBack has been activated  the GPSMAP 168 Sounder will take the track log currently oS                 Active  snai      stored in memory and divide it into segments called legs     Up to 30 temporary    turns    will be created name of points  to mark the most significant features of the track log in order to duplicate your exact path as closely as  possible  To get the most out of the TracBack feature  remember the following tips   e Always clear the track log at the point that you want to go back to  dock  etc    total Additional  Distance   options       The    Record Mode    option on the track log setup page must be set to    Fill or    Wrap        e There must be at least two track log points stored in memory to create a TracBack route           e Tf the track log interval is set to the    Time    option  the route may not follow your exact path  keep the  interval set to    resolution    for best performance  see page 71        e Ifthe receiver is turned off or satellite coverage is lost during your trip  the TracBack will draw a  straight line between any point where coverage was lost and where it resumed     e Tf your track logs changes in distance and direction are too complex  30 waypoints may not mark  your path accurately  T
96. h  The default format is latitude  and longitude in degrees  minutes  and thousandths of a minute  hddd  mm mmm      The following  additional formats are available     e hddd ddddd      latitude longitude in decimal degrees only  e hddd  mm   s s       latitude longitude in degrees  minutes  seconds    e UTM UPS    Universal Transverse Mercator   Universal Polar Stereographic grids    e British Grid    Dutch Grid e Finnish KKJ27        German Grid   e Irish Grid e Maidenhead e MGRS e New Zealand   e Qatar Grid    RT 90 e Swedish Grid e Swiss Grid   e Taiwan Grid e Loran TD e User Grid e W Malayan RSO    For additional information on Loran TD setup  see pages 83 84     e Map Datum    allows you to select the datum reference used to determine a given position  The  default setting is WGS 84     Datums are used to describe geographic positions for surveying   mapping  and navigation and are not actual maps built in the unit  Although over 100 datums are  available  as listed on pages 88 89   you should only change the datum if you are using a map or  chart that specifies a different datum     WARNING  Selecting the wrong map datum can result in substantial position errors   When in doubt  use the default WGS 84 datum for best overall performance     e Heading    lets you select the reference used in calculating heading information  You can select from     Auto Mag Var        True        Grid    and    User Mag Var        Auto Mag Var    provides magnetic north heading Reference
97. he Find menu    From the Find menu  see sidebar    you can select a point from the available options  The options  that are available may be different depending on the MapSource data that is loaded in the unit     Keep using the methods on steps 4 and 5 until the desired route points have been entered  Press  QUIT to return to the Route List Page     Reference       Creating Routes             The Find Menu catagories can vary depending on the Mapsource  data that is currently loaded in the unit     Waypoints        Cities        Tide  Stations    and    Transportation    will always be available  To select a  point  highlight a catagory then press ENTER to display the selec   tions for that catagory    Waypoints can be selected    By Name    or    Nearest      by selecting  the desired tab  If    Cities    is selected  a list of cities nearest to the  current GPS location will be displayed  Pressing the MENU key will  display other selection options  For information on selecting Tide  Stations  see page 81     61    To create a route graphically from the Route Review page        Reference 1  Press the MENU key twice to display the Main Menu page  Use the ARROW KEYPAD to highlight  l  the    Route    tab  then press the MENU key to display the route options page   Creating Routes 2  Select the    New Route    option and press ENTER MARK     3  Press MENU  highlight    Create on Map    and press ENTER MARK     4  To add an existing waypoint or map item to the route  use the ar
98. he Tide Station nearest to the current GPS  location  If    Other Location    is selected  a map will be displayed allowing a location to be selected using  the cursor  The location the unit is using will appear in the Date Time Position field  The timetables  displayed will be based upon your current time zone  When using a position from another location  outside of your time zone  you will need to set the Time Zone for that location under the    Time    tab on  the Main Menu  see page 72      To change the time or date     1  use the ARROW KEYPAD to highlight the date or time and press  ENTER MARK     2  Enter a new date or time and press ENTER MARK   To use the current date and time     1  From the    Celes    tab  press MENU  then use the ARROW KEYPAD to highlight    Use Current Date  and Time    and press ENTER MARK     Tide Tab    shows a graphical chart which displays tide station information in a 24 hour span starting  at midnight station time  You can choose from different dates and over 3000 tide stations around the Reference  USA coastline  Alaska  Hawaii  western Canada and several of the Caribbean islands     The top of the page displays the tide station being referenced  below that the date  The top of the Main Menu   chart shows a 24 hour block of local time  LCL  for your position  with the reported station time  STA  Tide Tab  appearing at the bottom  Daylight  light bar  and nighttime  dark bar  show across the time scale  with  the time progressing from lef
99. he receiver then assigns the 30 waypoints to the most significant points of       your track  and simplifies segments with fewer changes in direction  i         There are no saved   To stop TracBack navigation    Tracks te folldi   1  Press the NAV MOB key  highlight    Stop Navigation    and press ENTER MARK  mm  2  Choose either    Yes    or    No    and press ENTER MARK to confirm  3    ae TsPRING HILL    For more information on setting up the Track options and saved tracks  see pages 70 71  onus ieaeunaniene    using the    Follow Track    option     59    60    Reference       MOB   Man OverBoard    Map Pointer  13027  HN 48  26 553    i H121  5          oOVver2od  Li    305   50 534             The MOB function allows you to  quickly activate a navigation back to  a location     Map Pointer  1302     m       Go To MAP Point      Navigation   Are You Sure     mav  for Man Overboard          s __ OUETIO9 m          Highlight Yes    and press ENTER   MARK to stop navigation     OB    The GPSMAP 168 Sounders Man OverBoard function  MOB  lets you simultaneously mark and set  a course to a position for quick response to emergency situations     To activate the MOB function   1  Press and hold the NAV MOB key or press the NAV MOB key twice   2  Press the ENTER MARK key to confirm and begin navigating to the MOB position     Once a MOB has been activated  a    MOB    waypoint with a diver down symbol will be created and  the unit will be on an active navigation to that point  U
100. his fish is currently in a Dead Zone and is not detected by    the sonar  The fish is in the coverage area of the transducer   but remember  the first strong return sets the bottom level   The fish will eventually be detected when the first strong  return sets the bottom level below the fish     103    Transducer Coverage             Appendix H The area covered by the transmitted sound waves is determined by the cone angle of the transducer  and the water depth  Using GARMIN   s standard 20   transducer  the coverage is approximately 1 3 of the  Transducer Coverage water depth  As shown is Example 1  the coverage area at a 30 foot depth is approximately a 10 foot  diameter circle  The scale below illustrates how coverage increases as depth increases        _ l         a M S 0 gt   m O_O  Coverage Diameter i grer Depth  Coverage  Diameter 6   9      12   as 15  a a    a    8   Transducer Coverage Chart Example 1        104    Understanding the Chart    It is important to understand that the unit does not display a 3 D representation of the underwater Appendix H    environment  The unit can display multiple things at the same time  but can not determine where the       return originated    only when it was received  Understanding the Chart    Example 2 provides a look at the underwater world from a top view  and relates that view to what  would be displayed on the chart  On the chart it appears the fish and tree are side by side  but when  we look at the scene from the top we c
101. hose features which have a specified scale or turned     OfP are unaffected by this setting           apsource       Main Menu    Map Configuration Tab        ELT Source Waypoints Points  Orientation    North Up    fixes the top of the map display to a north heading  Track Up    fixes the Detail Normal  top of the map display to the current track heading  Course Up    fixes the map so the direction of General Tab   Orientation  North Up  navigation is always    up    and turns the navigation leg line vertical on the screen  utozoom  Off    Color Mode Water Hode       AutoZoom    On Off  when    On    the map will automatically adjust the map scale to a lower scale  as you approach you destination point        General  ETT  Waypoints   Points  Color Mode    Water Mode  Land Mode  when in    Water Mode     land will appear as a dark color and Basemap  On  water will be light  In    Land Mode     land will appear as a light color and water will be dark  Source Tab  mapsource On  Source Tab             Basemap    On Off  turns the built in base map on or off   MapSource    On Off  turns the optional MapSource data loaded in the unit on or off     33    Waypoints Tab    Waypoints  Active Route  Reference Text and Zoom settngs  see the description on page 33 for details        Points Tab    Spot Soundings  Tide Stations  Services  Navaids    Map Page Options    Text and Zoom settings  see the description on page 33 for details        2  OTIA Points  Nav Line  Track   2  Waypoints G
102. ht the desired waypoint on the map and press ENTER MARK                 50    To access the Waypoint Edit page     1  Press MENU twice  highlight the    Waypt  tab  and then highlight a waypoint from the    By Name         Nearest     or    Proximity    waypoint lists  Press ENTER MARK to display the Waypoint Edit page     To change the waypoint name    1  Highlight the waypoint name field and press ENTER MARK    2  Use the ARROW KEYPAD to enter a new name and press ENTER MARK when cone    To change the waypoint symbol    1  Highlight the waypoint symbol field to the left of the waypoint name and press ENTER MARK   2  Use the ARROW KEYPAD to select the desired symbol and press ENTER MARK when done   To change the position coordinates    1  Highlight the position coordinate field and press ENTER MARK     2  Use the ARROW KEYPAD to edit the coordinates  To drop to the next line  press to the right on the  ARROW KEYPAD  Press ENTER MARK when done     To enter a depth     1  Highlight the depth field and press ENTER MARK  If the Sonar was on and active at the time the  waypont was created  a depth will aleady be shown     2  Use the ARROW KEYPAD to enter a depth  Press UP or DOWN to change the digits and press  RIGHT or LEFT to move the cursor  Press ENTER MARK when cone     Reference    Editing Waypoints          Waypoint Edit      005    From Current Location    246 7      S Delete __  Show On Map  __Next__           Waypoint Edit Page       51    52    Options  Menu    Referen
103. ialize  make sure the GPSMAP 168 Sounder unit and antenna have been correctly  installed on your vessel according to the instructions in Appendix G  The antenna needs to be in a clear  and unobstructed view of the sky to receive satellite signals     To turn on the GPSMAP 168 Sounder     1  Press and hold the POWER key until the power tone sounds and the display comes on  then  release the POWER key     The Welcome Page will appear while the unit conducts a self test  Once the internal test is    complete  a warning page will appear  asking you to read and acknowledge important information  regarding the proper use of the unit     To acknowledge the warning   1  After reading the warning  press the ENTER MARK key if you agree     To graphically initialize the GPSMAP 168 Sounder    1  From the Status Page  press the MENU key  The Status Page options menu window will appear    2  Using the ARROW KEYPAD  highlight    Initialize Position    and press ENTER MARK to initialize the ee    receiver from the built in worldwide map  The Initialize Position Page will appear  prompting you to Initializing the Receiver  select your approximate location with the map cursor    3  Use the ARROW KEYPAD to move the map cursor and point to your approximate location within 2 L m   itialize Pos    100 miles  If you have difficulty identifying your position  press and release the IN key to zoom in  to see the next lower map scale        Getting Started                          4  Once you have dete
104. ion Page  The top half of the Highway Page features user selectable data fields that display useful  navigation data  The bottom half of the screen provides visual guidance to the waypoint on a graphic  highway display  The line down the center of the highway represents your desired track line     As you head toward your destination  the highway perspective moves to indicate your progress to  the waypoint and which direction you should steer to stay on course  If you are navigating a route  the  Highway Page shows each route waypoint in sequence connected by a black    road    with a white line  down the middle  which is your desired track line  Nearby waypoints not in the active route can also  be displayed  The highway perspective scale may also be zoomed in or out to display a larger or smaller  view of the highway  Five settings are available from 1X to 16X  with a default setting of 8X     To change the highway perspective scale    1  Press the IN or OUT key to select the desired setting    The GPSMAP 168 Sounders Highway options page allows you to define the data fields and select  which waypoints are displayed on screen  The data window  located at the top of the page  provides a  user selectable layout of various types of useful data  Each data field may be configured to display any    one of 27 data options  The data window layout may also be changed to display additional data fields  and change the actual size of the data displayed     The GPSMAP 168 Sounders Highwa
105. jr  Taipei County  Taiwan    www garmin com    Part Number 190 00170 00 Rev  D    
106. lar installation  If this equipment   does cause harmful interference to radio or television reception  which can be determined by turning  the equipment off and on  the user is encouraged to try to correct the interference by one or more   of the following measures      e Reorient or relocate the receiving antenna     e Increase the separation between the equipment and receiver     e Connect the equipment into a different outlet or circuit than the one that is curently being used    e Consult the dealer or an experienced radio TV technician for help     The GPSMAP 168 Sounder 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 and your authority to operate this  device under Part 15 regulations     Introduction       FCC Compliance    Introduction       Warranty and  Serial Number    Serial Number  Use this area to record the serial number  8 digit number  located on the bottom of the unit  in case it is lost  stolen  or  needs service  Be sure to keep your original sales receipt in a  safe place or attach a photocopy inside the manual     Serial Number     AAA       The GARMIN GPSMAP 168 Sounder has no user service   able parts  The GPSMAP 168 Sounder is fastened shut with  screws  Any attempt to open the case to change or modify  the unit in any way will void your warranty and may result  in permanent
107. le if you are using a speed capable transducer   Calibration is required to ensure that the Water Speed displayed on your unit will be accurate   The unit will automatically use the GPS ground speed  if it is available  for comparison on   the calibration  If a GPS ground speed is not available  use either your boats speedometer  reading  not always accurate  or a stopwatch to determine your speed over a certain distance   distance   time   speed   It is recommended that the calibration take place in water having  little or no current     Reference       Sonar Tab Options    Transducer at Surface  Enter     positive  number to show depth  from bottom of keel                                        Transducer at Bottom of Keel ee  Enter     negative number to show  depth from surface          Bring the boat to  cruising speed  Note  your top speed  then   stop the boat and   press ENTER        Top Uncalibrated    Top  Ground Speed Water Speed        25 9                 Calibrating the Speed Sensor    43    44       Reference    Sonar Tab Options       What was your  top water speed     025 9                If a ground speed is not available  the  unit will use the uncalibrated water  speed                 Bring the boat to  cruising speed  Note  your top speed  then  stop the boat and  press ENTER           t    Om ac             An error message will appear if the  speed sensor is not working or not  installed           To calibrate the water speed     1  From the    Sonar   
108. m Contour Medium AUTO Text and Zoom settings  see the description on page 33 for details   Park Areas  Medium AUTO  Minor Contour Small AUTO  Land Cover Medium AUTO Other Tab  Geo Tab Topo Tab Accuracy Circle    On Off  toggles the circle    On    and    Off     The circle represents the approximate  accuracy of the unit based on EPE  DOP and basemap quality  You position will be within the       Nav Line   Track  Geo Topo MITT circle   Text Zoom  Accuracy Circle On Lat Lon Grid   Text and Zoom settings determine when the grid and lables will be displayed on the  Lat Lon Grid Medium OFF Map Page  See the description for the Text and Zoom settings on page 33 for details   Map Outlines On          Map Outlines   On Off toggles the outline showing areas of MapSource Data that are loaded in  Other Tab the unit        34    Map Setup Menu Options  From the map setup page  you can access the following menu options  Reference  e Restore Defaults    restores settings back to factory settings for the tab highlighted      Restore All Map Defaults    restores settings back to factory settings for all tabs  Map Page Options  e MapSource Info    allows you to display not display optional map sets loaded in the unit        To restore defaults for map settings   1  From the Map tab in the Main Menu  highlight the Map Configuration tab that you want to restore             he f default setti d MENU  Restore Defaults  to the factory default settings  and press   ene Gli Lies NISAN  2  Highligh
109. m a route waypoint to the next waypoint  in sequence   in the route     Max Speed    The maximum second by second speed recorded since last reset   Moving Average Speed    Average speed while the unit is moving   Moving Trip Timer    Total time the unit has been moving     Odometer    A running tally of distance travelled  based upon the distance between second by second  position readings     Off Course    The distance you are off a desired course in either direction  left or right  Also referred  to as    cross track error    or    course error     Appendix E    Speed    The current velocity at which you are travelling  relative to a ground position  Also referred  to as    ground speed     Navigation Terms    Time To    The estimated time required to reach a GOTO destination or the next waypoint in a route   Also referred to as    estimated time en route              ACTIVE TO     WAYPOINT    Time to Dest    The estimated time required to reach a GOTO destination or the final waypoint  in a route     F       Time to Next    The estimated time required to reach a GOTO destination or the next waypoint  in a route     To Course    The recommended direction to steer in order to reduce course error or stay on course   Provides the most efficient heading to get back to the desired course and proceed along your route  NORTH    Track    The direction of movement relative to a ground position  Also referred to as    ground track      Trip Odometer    A running tally of distance tra
110. me the unit is turned  on  If you enter an alarm circle overlap  you will only be alerted to the closest proximity waypoint     The following options are available from the    Proximity    submenu of the    Waypr tab   e Add Waypoint    adds a waypoint to the proximity list from the waypoint list   e Clear Alarm    removes selected waypoint from proximity list     e Clear All    removes all waypoints from proximity list     To display the proximity waypoint menu options   1  Using the ARROW KEYPAD  highlight the    Proximity    tab and press the MENU key     To add a proximity waypoint     1  From the    Proximity    tab menu options  use the ARROW KEYPAD to highlight    Add Waypoint    and  press ENTER MARK  The    Find    screen appears     2  Use the ARROW KEYPAD to select a catagory from the    Find    list  Select a point from the chosen  catagory and press ENTER  The    Waypoint Review    page will be displayed       Press ENTER MARK to confirm  The distance field will now be highlighted   4  Press ENTER MARK to begin entry of the proximity radius   5  Use the ARROW KEYPAD to enter a distance value  to 99 99 units  and press ENTER MARK     UJ    Reference    Proximity Waypoints          Waypt By Name  Nearest   Proximity    Route proximity Alarm       Add Waypoint    Clear Alarm  Clear All                   Find    list        39    To turn proximity alarms on or off        Reference 1  Use the ARROW KEYPAD to highlight the field below    Proximity Alarm    and press  E
111. menu of options and functions for the Status Page  will appear     2  Press UP or DOWN on the ARROW KEYPAD to highlight the    Start Simulator    option and press  ENTER MARK     3  Press the ENTER MARK key to confirm the    Running Simulator    message that appears at the  bottom of the display     Once the simulator has been started  the status field at the top of the page will display a    Simulating  Navigation    status  Now you re ready to continue the rest of the simulated tour        A should never be used for actual navigation     All the waypoint and route planning done in simulator mode will still be retained in memory  for future use     The GPSMAP 168 Sounder does not track satellites in simulator mode  and this mode       Getting Started    Backlighting   Simulator Mode       Light Contrast          Press UP or DOWN on the ARROW  KEYPAD to move the backlighting  slider up for brighter or down for  dimmer backlighting         p  E DOP  a i O2 04 0S 07 08 09 2 0  j A DG  E   Off     ag A f    15 FEB 00    04  03  24     N 38  91 330    lt W094  4 7 958     When the unit is in simulator mode   an    S    will appear in the lower left  corner of every screen and the Status  Page will show    Simulating Naviga   tion                    The Status Page is one of six main pages used in the GPSMAP 168 Sounders system  The six main                                           Getting Started pages are  the Status Page  Sonar Page  Map Page  Compass Page  Highway Page and Ac
112. n on off            Always press and release a key to perform   its primary function  Pressing and holding   the ENTER MARK or NAV MOB keys   will activate their secondary function  1       Getting Started    Selecting Options       Full Screen Map On  Measure Distance    Change Data Fields  Declutter On    for Main Henu       Use the ARROW KEYPAD to highlight  the next option  Press ENTER MARK  to activate the option                  S   Pop up list of options for a highlighted  field        How To Select Options and Enter Data    Before moving ahead into GPSMAP 168 features  you will need to learn basic operation  You can  select and activate options and enter data to customize the GPSMAP 168 to fit your requirements  You  can use the ENTER MARK key and ARROW KEYPAD to select options  enter names and numbers  in data fields  and activate your selections     To select and activate an optional feature     1  With any page displayed  press the MENU key to pop up the options menu  The options menu will  display a list of optional features which are specific for that particular page  To select any feature on  the list of options requires movement of the cursor  which is identified as highlighting  selecting or  choosing an item in a list or a field  box  on a page     2  Use the ARROW KEYPAD to move the cursor  highlight  up and down a list or up  down  and  sideways on menus     3  Once you have moved to the selection desired  press the ENTER MARK key to either activate the  fe
113. n screen and press NAV MOB  246 7i H 2051 230   2  You will see    Go To  lt waypoint name gt      then press ENTER MARK    To activate a new map point  non map item  as a    Go To    from the map display   1  Use the ARROW KEYPAD to move the arrow cursor to the desired position    2  Press NAV MOB  you will see    Go To MAP Point    highlighted  then press ENTER MARK                    1204  Ed Jei       The waypoint or map item name  will automatically appear when high   lighted and NAV MOB is pressed     57    58    Reference       TracBack Navigation               N 38  5 1 338   n94  47 890     Go To Point  Follow Route  Follow Track                 for Man Overboard          G 1205       Go To MAP Point    allows you to  navigate to a spot on the map which  is not a waypoint or map item           Waypt  Saat Active  Saved      Map Interval Value    Smm Resolution 82                Highlight    Save    and press ENTER   MARK to save an active track log     TracBack Navigation  Follow Track     The second method of navigating to a destination is by using the TracBack feature  The TracBack  function allows you to retrace your path using the track log automatically stored in the receivers  memory  which will eliminate the need to store waypoints along the way  TracBack routes are created  by reducing your track log into a route of up to 30 turns and activating an inverted route along those  points  Once activated  a TracBack route will lead you back to the oldest stored tra
114. n take up to five minutes     e Acquiring Satellites    the receiver is looking for and collecting data from satellites visible at its last  known or initialized position  but has not collected enough data to calculate a fix     e 2D Navigation    at least three satellites with good geometry have been acquired and a 2 dimensional  position fix  latitude and longitude  is being calculated     2D Differential Navigation    will appear  when you are receiving DGPS corrections in 2D mode and a    D    will show on the strength bar of  satellites being corrected        3D Navigation    at least four satellites with good geometry have been acquired and your position  is now being calculated in latitude  longitude and altitude     3D Differential Navigation    will appear  when you are receiving DGPS corrections in 3D mode and a    D    will show on the strength bar of  satellites being corrected     e Poor GPS Coverage    the receiver is no longer tracking enough satellites for a 2D or 3D fix     e Receiver Not Usable    the receiver is unusable  possibly due to interference or abnormal satellite  conditions  Turn the unit off and back on to reset     e Simulating Navigation    the receiver is in simulator mode     21    The    DGPS Revr and    Diff SNR    fields appear below the    Accuracy    and    DOP    fields  The Differential  Reference Receiver status will show one of the following     e Off    No optional beacon receiver attached or enabled in the Comm menu       Status Pa
115. nar       To understand what the unit is displaying  it is important to have a general knowledge of how the  unit works and how it determines what to display  Briefly described  the unit operates by transmitting  sound waves toward the bottom of a lake  stream or seabed in a cone shaped pattern  When a  transmitted soundwave strikes an underwater object such as the bottom  a piece of structure  or a fish     sound is reflected back to the transducer  The transducer collects the reflected sound waves and sends   janis  the data to the unit to be processed and displayed on the chart  The underwater data is displayed on ees  the chart in the order that it is returned  first returned   first on the chart  The diagram in the sidebar  demonstrates this showing an underwater scene as it would be displayed on the chart  Generally  speaking  if the only thing between the transducer and the bottom is water  the first strong return  will come from the bottom directly below the transducer  The first strong return sets the bottom level   Weaker secondary returns provide the detailed data  Stronger returns will display in darker colors   black being the strongest return  In Example 2  page 106  you can see that the branches and the fish  where the strongest secondary returns are indicated in black on the display              That is brief description of how your GPSMAP 168 Sounder operates  Lets take a look at how this    l    Thi   in a Dead Z    data can help you to improve your fishing 
116. nctions  Let s start by changing the position to where the practice  route is located     To change the GPSMAP 168 Sounder position in simulator mode     l    From the Status Page  press the MENU key  A pop up window will appear  displaying a list of  options and functions for the Status Page     Press UP or DOWN on the ARROW KEYPAD to highlight the    Initialize Position    option and press  ENTER MARK     From the Initialize Position Page  press the MENU key  You will see    Enter As Text    highlighted   then press ENTER MARK     On the Enter Position window  press ENTER MARK then use the ARROW KEYPAD to enter  N34  56 800   press the ARROW KEYPAD right to move to the next line then enter W076  24 066      Press ENTER MARK when finished     Getting Started    Using the NAV MOB Key       Accuracy  f       03 10    a    2  0     _   _____    DGPS Revr    Off         o       N 34  56 800                 N0 76  24 066       Text entry for simulator position                 S    Bae       For future practice  you may skip  steps 3 and 4 and point to a location  from the Initialize Position page              Getting Started Let s give it a try by activating the practice route stored in memory for navigation     i 1  Press NAV MOB  The options list will appear   If we were selecting a single waypoint to navigate  Simulated Tour to rather than a route  we could highlight the waypoint on the map  press NAV MOB and then  press ENTER MARK      2  Use the ARROW KEYPAD to highlight the
117. ng    unit is attempting to tune to the specified frequency and bit rate             Serial Data Format  GARMIN DGPS  Baud Status  4800 Tuning    Beacon Bit Rate Frequency    200 312 0     Distance             e Scanning    unit is automatically scanning through the frequencies and bit rates   e Receiving    unit is receiving DGPS signal and ready for operation  Status Field  e Check Wiring    unit is not making connection with DGPS receiver   When the unit is receiving a DGPS signal  the    SNR     Signal to Noise Ratio  and    Distance    fields  will show data  The SNR range is OdB to 30dB  with 30 being the best  The Distance may or may not    show data  depending upon the signal being broadcast from the DGPS site  SNR and Distance will show data  when signal is received              11    78    Reference       Main Menu   Alarm Tab             Anchor Drag Off 0 00   Arrival Time 00 00 15  Off Course Off 0 00     Clock Off    12 00         Shallow Water Off 20 0   Deep Water Off 100 04    Fish Off  Battery Off 11 2          Alarm Tab       The DGPS beacon transmitters are operated by the U S  Coast Guard  or similar government agency  in other countries   which is responsible for their accuracy and maintenance  For DGPS transmitter  problems or to find the most updated list of frequencies and coverage areas  contact your local USCG   or see their web site at http   www naveen uscg mil      Alarm Tab    allows you to turn an alarm On or Off and define the alarm setting for
118. not show  an area that has scrolled off the screen  The depth will continue to update while the display is paused   but the unit will not show any new sonar data until the standard Sonar Page is resumed  You may see a  dicontinuity from where the sonar information stops to where it starts again     To mark an underwater waypoint    1  From the Sonar Page  press MENU  highlight    Show Pointer    and press ENTER MARK to pause  the screen movement    2  Use the ARROW KEYPAD to move the cursor onto the target  underwater drop off  stump  etc    you want to mark  A data field will appear with the cursor   s depth  coordinates  and bearing and  distance from your current position    3  Press ENTER MARK  The New Map Waypoint page will appear with the waypoint s coordinates   default three digit name  and depth automatically filled in    4  To change the name  symbol or depth  highlight the appropriate field and press ENTER MARK   Make your changes and press ENTER MARK when done    5  When done  move the field highlight back to the    OK    prompt and press ENTER MARK    6  To return to the standard Sonar Page  press QUIT or press MENU  highlight    Hide Pointer    and  press ENTER MARK        Show Hide Depth Line    adds the    Depth Line    selection to the Adjustment Bar and a horizontal  depth line across the display which is used to measure the depth of underwater objects  The depth of Reference  the line will appear in a box on the right side of the line   To activate deactiva
119. ntil the desired   vertical width line shows  then press ENTER MARK  fe ee  4  Ifyou wish to cancel this operation  press QUIT or press MENU  highlight    Stop Resizing    and You may EE the split Ee    press ENTER MARK  left or right anywhere within the  shaded reigon              41       Configure Sonar    contains the unit settings that should not require frequent change  The Sonar  setup menu contains settings for Fish Symbols  Whiteline  Scroll Speed  Scale  Noise Reject  Keel Offset     Reference bcm  Water Type  Remember  and Calibration        Sonar Tab Options To enter the Sonar setup menu  press the MENU key from the Sonar Page  highlight    Configure  Sonar    and press ENTER MARK  You may also press MENU twice from any screen  then highlight the     Sonar    tab using the ARROW KEYPAD  Press the RIGHT arrow to access the selection fields  Each          Fish Symbols Whiteline i i i i   i  aac time the Setup Menu is accessed  the unit will return to the last edited selection field   Scroll Speed Scale i    Fest  Overlay To cnange a setting on the sonar tab  Ean    Noise Reject Water Type 1  Using the ARROW KEYPAD  highlight the desired field and press ENTER MARK and the available  Sone  Auto F resh options will appear   ystm    0 0  Setup Only 2  Highlight the desired setting and press ENTER MARK   Alarm 3  Press QUIT to return to the Sonar Page or previous page   Tide    The available Sonar tab options are                 Sonar Menu Tab Options    Fish Symbols    
120. of the structure  you can make a better informed  decision on the type of structure        Hord Bottom Whiteline Sott Bottom Whiteline Turned Of    Structure is hard    Structure is soft       probably a rock or stump probably a mud pile Example 3     106    Thermoclines    One of the unique features offered by GARMIN is See Thru technology  See Thru technology Appendix H  allows the GPSMAP 168 Sounder to see through thermoclines and helps locate fish where they live     and fish love the thermocline  Understanding the Chart       changes faster than the water above it  The thermocline usually displays as a gray    A rough definition of a thermocline is a break in water where the water temperature  level as shown below        Thermocline    107    Appendix l       Advanced NMEA Setup    Advanced NHEA  Output Setup    WARHING  Enabling GPS Status or  Waypoint  Route sentences may couse  output rate to be more than    seconds     Advanced NMEA Setup Page    108       NMEA Interface   If you are going to interface the GPSMAP 168 Sounder with another piece of equipment such as a  radar or autopilot the unit has to be set to output NMEA data  The NMEA data can be customized  to shorten the update time from the unit  If too many NMEA sentences are activated the unit may  take longer than 2 seconds to update     Activating the NMEA Data     1  With the GPSMAP 168 Sounder turned on  press the MENU key twice to display the Main Menu   Using the Arrow Keypad  select the    COMM    tab 
121. om the    Waypt    tab is the    Nearest    list  which shows  the ten nearest waypoints that are within 100 miles of your present position  The nearest waypoints  are continuously updated to your present position  and provide quick access to the closest points of  safety in emergency situations   To scroll through and review the nearest waypoint list   1  Highlight the    Nearest    tab  then use the ARROW KEYPAD to scroll through the list in either  direction   2  Press ENTER MARK to review the highlighted waypoint   3  To return to the waypoint list  highlight the    OK    prompt and press ENTER MARK   4  The field highlight will automatically scroll to the next waypoint  If you want to review each  waypoint  you can scroll through any waypoint list by pressing the ENTER MARK key repeatedly   To select a nearest waypoint as a NAV MOB destination   1  Use the ARROW KEYPAD key to select the desired waypoint   2  Press NAV MOB  followed by ENTER MARK     Proximity Waypoint List    The third waypoint submenu list available from the    Waypt    tab is the    Proximity    list  which lets  you define an alarm circle around a stored waypoint position  and can be used to help you avoid reefs   rocks or restricted waters  Up to ten waypoints may be listed  with a maximum alarm radius of 99 99  nautical or statute miles or kilometers  If a proximity alarm circle overlaps with an existing alarm circle   a    Proximity Overlaps Another Proximity Waypoint    message will appear each ti
122. on Mindanao    Luzon Philippine    Mahe 1971  Marco Astro  Massawa  Merchich  Midway Ast    61  Minna   NAD27 Alaska  NAD27 Bahamas       NAD27 Canada    NAD27 Canal Zn  NAD27 Caribbn          NAD27 CONUS  NAD27 Cuba  NAD27 Grnland    NAD27 Mexico  NAD27 San Sal          NAD83    Naparima BWI    Liberia 1964  Liberia  Luzon  Mindanao Island    Luzon  Philippines   excluding Mindanao Isl      Mahe 1971  Mahe Island  Marco Astro  Salvage Isl   Massawa  Eritrea  Ethiopia   Merchich  Morocco   Midway Astro    61  Midway  Minna  Nigeria   North American 1927  Alaska    North American 1927  Bahamas   excluding San Salvador Island     North American 1927  Canada and  Newfoundland    North Am  1927  Canal Zone    North American 1927  Caribbean   Barbados  Caicos Islands  Cuba  Dom   Rep   Grd  Cayman  Jamaica  Leeward  and Turks Islands NAD27 Central  North American 1927 Central America   Belize  Costa Rica  El Salvador  Gua   temala  Honduras  Nicaragua     North Am  1927  Mean Value  CONUS   North American 1927  Cuba    North American 1927  Greenland   Hayes Peninsula     N  American 1927  Mexico    North American 1927  San Salvador  Island    North American 1983  Alaska  Canada   Central America  CONUS  Mexico    Naparima BWI  Trinidad and Tobago                   Nhrwn Masirah  Nhrwn Saudi A  Nhrwn United A  Obsrvtorio    66    Old Egyptian  Old Hawaiian  Oman    Ord Srvy GB    Pico De Las Nv  Potsdam    Prov S Am    56    Prov S Chln    63  Ptcairn Ast    67  Puerto Rico    Qata
123. ons sssrin 51 53  Software Version ersen 73        Track Log  Clearing eno 19 58 71 Waypoints  Creating        28 29 48 50  Sonar COMM SUN AUOM cccccccrsatccssisanaces  S840 TrackL  g  DESI serssicarensinenapstonianatait 71 Waypoints  Deleting   0 2    tee 53  Sonar Page suiii 8  14 15 38 44 Track Log  Displaying                  33 47 59 Waypoints  Editing       30 93  Gonar Pace Options icsecsesersareszatar vas 40 44 Track Log  Saving        0 eceeee 58 71 Waypoints  Moving  sssrin 5l  Sonar  Understanding                   103 107 Track Log  Showing on Map  33 47 59 71 Waypoints  Naming    eee 5l  Sonar ZOOI soara 15 3039 Track SEUD irisito 70 71        Waypoints  Nearest 0    54  L CAM OMS PEE OF Tanes d  t i enna 96 100 Waypoints  Proximity    54 50  Speed  Distance and Elevation               75    Trip and Fuel Planning    67 Waypoints  Reviewing            50 51  R A E E Do Trp OO e sernir eson 72 Welcome Page           eet in    Split Screen  Resizing sccscccecsacsesaes 31 32 41 TA TCT S E AA TA VS dependeat  Status Page  iaiaaeaia 5 8  20 23 U Wiring Mealli ee  Status Page Options           eee 22 23      Site o e a ccc  80 LOL athic pelea alah  E eran earner  14 75    User AUG  era 74 88 89          2000   2002 GARMIN Corporation    GARMIN International  Inc   1200 East 151   Street  Olathe  Kansas 66062  U S A     GARMIN  Europe  Ltd   Unit 5  The Quadrangle  Abbey Park Industrial Estate  Romsey  SO51 9AQ  U K     GARMIN Corporation  No  68  Jangshu 2    Road  Shi
124. ose your correct time zone to show correct local time or enter a UTC Offset  The  UTC  also called Greenwich Time  offset is how many hours you are ahead or behind the time line   See the table on page 85 for time offsets     e Daylight Savings    choose from    Auto        On     or    Off    to adjust for daylight savings   Pages Tab    allows you to turn on off any of the main pages or    Jump To    a particular page   To select deselect a main page     1  Use the ARROW KEYPAD to highlight the box to the left of the page name  Pressing ENTER   MARK will select deselect that page  When a page is selected  a         will appear in the box  You  must leave at least one page checked     You may also press MENU and choose from one of the following and press ENTER MARK   e Enable All Pages    selects all pages    e Basic Chartplotter    selects Map Page only    e Nav Tools Only    selects Compass  Highway  and Active Route Pages only    e Basic Fishfinder    selects Sonar Page only    To    Jump To    a specific page     1  Use the ARROW KEYPAD to highlight the    Jump To    option to the right of the desired page and  press ENTER MARK     Systm  System  Tab    controls system setting for beeper  speed filter  languages  system mode   simulator controls  restores factory settings  and displays software version     The following settings are available     Beeper    controls audible beep  Select from    Off        Alarms Only     sounds for alarms messages      Key  and Alarm     
125. ounders compact  waterproof case is suitable for mounting in exposed loca   tions or at the nav station  The unit comes with a gimbal bracket for surface or overhead mounting   When choosing a location for the display unit  make sure you consider the following conditions     e There should be at least a 3     5 cm  clearance behind the case to allow connection of the  antenna  external antenna only  and power data cables        The mounting surface should be heavy enough to support the unit and protect it from excessive  vibration and shock        For units with the built in internal bail mount antenna  it should be mounted in a location that has  the clearest  most unobstructed view of the sky in all directions to ensure the best reception  Avoid  mounting the unit where it will be blocked by the boats superstructure  a radar arch or mast     The temperature range for the GPSMAP 168 Sounder is 5  F to 158  F   15  C to 70  C    Extended exposure to temperatures exceeding this range  in storage or operating  conditions  may cause failure of the LCD screen  This type of failure and related  consequences are NOT covered by the manufacturer s limited warranty     To install the GPSMAP 168 Sounder unit    1  Place the mounting bracket in the desired location    2  Mark and drill the four mounting holes for the fastener you are using   3  Fasten the bracket to the surface using the appropriate fastener   4      Insert the GPSMAP 168 Sounder into the mounting bracket  The bracket i
126. p  MapSource   Waypoints Waypoints  Active Route   Points Spot Soundings  Tide Stations  Services  Navaids  Nav Line Heading Line  Bearing Line  Course Line   Track Saved Tracks  Track log   Geo Geo Points  Rivers Lakes  Park Areas   Topo Major Medium Minor Contours  Land Cover  Other Accuracy Circle  Lat Lon Grid  Map Outlines    To change a map setup feature        1  From the Map Page menu  highlight    Configure Map    and press ENTER MARK  Reference  2  Move LEFT or RIGHT on the ARROW KEYPAD to highlight the desired tab  then UP or DOWN on   the ARROW KEYPAD to highlight to the setting you want to change and press ENTER MARK  Map Page Options  3  Move UP or DOWN on the ARROW KEYPAD to highlight to the desired setting and press   ENTER MARK        4  To exit  press QUIT         INT  Source   Waypoints  Points            Map Configuration Tabs    The Waypoints  Points  Track  Geo  and Topo Tabs have settings for either    Text        Zoom    or both  Below  is a description for each setting and how it will affect the Map Page        North Up  Off     Map _    Text    None  Small  Medium  and Large  controls the screen size of the name     Zoom    Auto  Off  20 ft  800 mi   sets the maximum scale at which the feature should appear on the  screen  Some types of data will only show up to certain zoom scales     General Tab    Detail    Most  More  Normal  Less  Least  controls how much map detail you will see  This setting  only applies to any map feature set to    Auto     T
127. pear showing up to nine of the nearest tide stations  Highlight the desired station and  press ENTER MARK     Search for Tide Stations    Nearest To Other       1  From the    Tide    tab  highlight the    For    field and press ENTER MARK    2  With the Tide Stations list displayed  press MENU    3  Using the ARROW KEYPAD  highlight    Nearest To Other    and press ENTER MARK     4  A map will be displayed  using the ARROW KEYPAD  place the cursor over the desired area and  press ENTER MARK  The unit will search for Tide Stations in the selected area and display them  in the Tide Stations list     To change the date for the tide chart    1  Using the ARROW KEYPAD  highlight the    On    field and press ENTER MARK   2  Enter the desired date and press ENTER MARK    To use the current date    1  Press MENU  then highlight    Use Today s Date    and press ENTER MARK     Loran TD System    Loran C is a radio navigation aid operated and maintained in the United States by the United States  Coast Guard  The name LORAN is an acronym for    LOng RAnge Navigation     The Loran system covers  the entire United States and the U S  Coastal Confluence Zone  From the perspective of a mariner  the Loran TD  system is used for ocean and coastal navigation  It can be used as a supplemental system for harbor and  harbor approach navigation  and it is used for inland navigation by recreational vehicles     Appendix A       Loran TD Feature          3D Navigation  The Loran TD  Time Delay  feat
128. point where the water meets  the whiteline  This black line will follow the contour of the bottom and show any objects of reasonable  size  For more information on understanding sonar and the display  see Appendix H     Using the Adjustment Bar   The Adjustment Bar allows direct access to the settings most commonly changed while using the  unit  These include the depth    Range        Zoom    setting  the    Gain     sensitivity      View adjustment  and     Line     Depth Line  of the unit  The    View    setting will only display when the Sonar Page is in split screen  mode  The    Line    setting will appear only when the Depth Line is activated     To select a setting from the Adjustment Bar     1  Using the ARROW KEYPAD  place the highlight  white bar  over the desired selection by pressing  RIGHT or LEFT on the ARROW KEYPAD and the current setting will be displayed in the highlight   If you wish to review the available settings before making a change  press ENTER MARK to  activate the adjustment list  To immediately change the setting  press UP or DOWN on the ARROW  KEYPAD     2  With the ARROW KEYPAD  move UP or DOWN and place the pointer or adjustment bar at the  desired setting or range    3  To change    View    to    Auto    or    Line    to    Off     hold UP or DOWN on the ARROW KEYPAD until  the adjustment bar reaches the top or bottom of the scale  release  then press once more in the  same direction     4  You may press QUIT or ENTER MARK to accept the setting
129. pots   Map      1  Use the ARROW KEYPAD to select a map item or map location within the Fishing Hot Spots WATER anes Leke Ks of Big    coverage area and press ENTER MARK     Bull and Little Bull Creeks  Rock Creek is  2  Use the ARROW KEYPAD to view the tabbed information pages for that location  Highlight    OK     and press ENTER MARK when you re finished  You may also select the    Create Waypt  or    Show on  Map    options the same as with a non MapSource map item     To read all the information in a    Fishing Hot Spots Map    tab   1  Use the ARROW KEYPAD to highlight the text  the entire text field will be highlighted    2  Press ENTER MARK  A single line of the text field will now be highlighted  Viewing Fishing Hot Spots information  3  Use the ARROW KEYPAD to scroll through the text     4  When you re finished  press ENTER MARK  Use the ARROW KEYPAD to view other tabbed  information or select other options  or select    OK    to return to the Map Page            above elevation     SHORELINE   Forested and mainly clay  with a few limestone outcroppings  There    are about 51 miles of shoreline  With the S                27    28       Reference    Map Page Cursor          Waypoint       028    From Current Location    3 4  158               Viewing Waypoint Information          Intersection  US 69  amp  US 169  amp  Hwy 150       From Current Location    5 9  H 38  53 002   074   H094  40 646         S _Show On Map       Information Page    To view information abou
130. press ENTER MARK   To copy or delete a route     1  From the Route List  using the ARROW KEYPAD  highlight the route you want to copy or delete  and press MENU     2  Choose either    Copy    or    Delete Route    and press ENTER MARK and with    OK    highlighted  press  ENTER MARK again to confirm a deletion    To delete all routes    1  From the Route List  press MENU     2  Highlight    Delete All    and press ENTER MARK and with    OK    highlighted  press ENTER MARK  again to confirm the deletion     Reference       Route List Page       Route Review    001  009             If you highlight a route name from  the Route List and press NAV MOB   the name will automatically appear            Waypt    rt  001 009                   Ed  18 Avdilable   2 Used       Route List Options Menu    63    Route    Manic    Route  Points    64    Reference       Route Review Page                  Waypoint Distance 4 Course  gt        Data  Fields    TOTALS    Data Totals                   TOTALS    17 7  337    Route Review Options Menu    Route Review Page   Once you have created a route  the Route Review Page allows you to review and modify the  route displayed    To get to the Route Review Page    1  Press MENU twice to display the Main Menu  then highlight the    Route    tab    2  Highlight the name of the route you wish to review and press ENTER MARK    The Route Review Page also allows you to enter your own 15 character name for any listed route   By default the name includes th
131. ptions       DIST TO NEXT POINTER  n    Current  Size             Move the double arrow left or right  to adjust the size of the Sonar or  Flasher window               ITT  Source   Waypoints   Points       Normal   North Up   off   Water Hode  69             Main Menu    Map Configuration Tab    32           Resize Map    enables width adjustment of the Map and Sonar Flasher split screen  This option is  only available when the unit is in    Show Sonar    or    Show Flasher    mode  You may adjust the size of the  Sonar Flasher window anywhere from 1 3 to 1 2 width of the right half of the Map Page     To resize the Map Page split screen   1  From the Map Page and Sonar Flasher split screen  press MENU   2  Using the ARROW KEYPAD  highlight    Resize Map    and press ENTER MARK     3  Move the horizontal double arrow LEFT or RIGHT using the ARROW KEYPAD until the desired  vertical width line shows  then press ENTER MARK     4  Ifyou wish to cancel this operation  press QUIT or press MENU  highlight    Stop Resizing    and  press ENTER MARK        Configure Map    allows you to configure the map display to your preferences  including map detail   map orientation  automatic zoom  and various map items and points  The map configuration option  uses a    file tab    feature  making it easier to organize the various settings for ease of use  The following  table lists the file tabs and the settings available under each tab     General Detail  Orientation  AutoZoom   Source Basema
132. r National    Reunion   Rome 1940  RT 90   Santo  Dos   Sao Braz  Sapper Hill 43  Schwarzeck    SE Base    South Asia  Sth Amrcn    69    Nahrwn  Masirah Island  Oman   Nahrwn  Saudi Arabia  Nahrwn  United Arab Emirates    Observatorio 1966  Corvo and Flores Islands   Azores     Old Egyptian  Egypt  Old Hawaiian  Mean Value  Oman  Oman    Old Survey Grt Britn  England  Isle of Man   Scotland  Shetland Isl   Wales    Canary Islands  Potsdam Germany    Prov So Amricn    56  Bolivia  Chile Colombia   Ecuador  Guyana  Peru  Venezuela    So Chilean    63  S  Chile  Pitcairn Astro    67  Pitcairn  Puerto Rico  amp  Virgin Isl     Qatar National  QatarQornoq  Qornog  South Greenland    Reunion  Mascarene Island   Rome 1940  Sardinia Isl    Sweden   Santo  Dos   Espirito Santo   Sao Braz  Sao Miguel  Santa Maria Islands  Sapper Hill 1943  East Falkland Island  Schwarzeck  Namibia    Southeast Base  Porto Santo and Madiera  Islands    South Asia  Singapore    S  American    69  Argentina  Bolivia   Brazil  Chile  Colombia  Ecuador   Guyana  Paraguay  Peru  Venezuela   Trin Tobago    Appendix D       Map Datums    SW Base    Timbalai 1948    Tokyo   User   Tristan Ast    68  Viti Levu 1916    Wake Eniwetok  WGS 72  WGS 84  Zanderij    Southwest Base  Faial  Graciosa   Pico  Sao Jorge and Terceira Islands    Timbalai 1948  Brunei and E   Malaysia  Sarawak and Sabah     Tokyo  Japan  Korea  Okinawa  User defined custom datum  Tristan Astro 1968  Tristan da Cunha    Viti Levu 1916  Viti L
133. r Service  pg  iv  to have the unit  serviced    No DGPS Position    No differential correction data is available or not enough  data is available to compute a DGPS position    No Tide Stations For That Area    There are no tide stations within 100  miles of the specified point  Try another area     Off Course Alarm    You have exceeded the specified off course distance     Processor Failed Unit Needs Repair    Internal problem with the unit   Contact your dealer or GARMIN Customer Service  pg  iv  to have the unit  serviced     Proximity Alarm List is Full    You have used all ten proximity  waypoints     Proximity Alarm Waypoint    You have entered the alarm radius for the  proximity waypoint indicated     Proximity Overlaps Another Proximity Waypoint   The alarm radius speci   fied overlaps the area specified for another proximity waypoint  Adjust the  distance     Route Already Exists   lt route name gt     You have entered a route name that  already exists in memory  Modify the route name or delete the previous route  name    Route Does Not Exist   lt route name gt     Route has been renamed or removed  from memory and cannot be used    Route Is Full    You have attempted to add more than 30 points to a route   Reduce the number of points or create a second route    Route Memory Is Full Can   t Create Route    Maximum amount of 20 routes  is already in the units memory and no additional routes can be added until  existing ones are removed    Route Truncated    An uploade
134. rmined your approximate location on the map  press the ENTER MARK key  q me oe ioa    This does not    calibrate    the unit in any way  but rather helps to speed up the initial    satellite acquisition  If the unit switches to the Map Page or displays    2D    or    3D Fe E  Navigation    during this process  it is not necessary to initialize the unit  k       Point to your approximate    location and press ENTER        The GPSMAP 168 Sounder will now begin searching for the appropriate satellites for your region  and should acquire a fix within a few minutes  A signal strength bar for each satellite in view will appear  on the top middle of the page  with the appropriate satellite number under each bar  The progress of  satellite acquisition is shown in three stages  Looking for Satellites    Accuracy    Point to your approximate location  and press ENTER MARK           e No signal strength bars    the receiver is looking for the satellites indicated   e Hollow signal strength bars    the receiver has found the indicated satellite s  and is collecting data        Solid signal strength bars    the receiver has collected the necessary data and the satellite s  are  ready for use     Once the receiver has collected information from at least three satellites  the top of the screen will  display either    2D    or    3D Navigation     and the GPSMAP 168 Sounder is ready for use              A satellites strength bars will turn  black when it   s ready for use     Getting Started
135. rn pages on off  Celes in the Page Quit key cycle     Tide The    Jump To  buttons take you  directly to that page              Pages Tab          Speed Filter  Auto   Language   English    Stim System Mode    Units GPS Only             Systm  System  Tab       73    14    Reference       Main Menu   Units Tab    The Units tab settings will affect how navigation information  is displayed on the GPSMAP 168 Sounder  When in doubt   seek assistance    If you are using a map or chart in conjunction with your  GPS  make sure the settings under the    Units    tab of the  GPSMAP 168 Sounder match that of the map or chart  This  information should be displayed somewhere on the map or  chart  If the information is not present  contact the map   or chart maker to determine what position format  datum   heading and units of measure are being used for the map   or chart        Position Format    hddd  mm mmm          Co  alarm Feet  ft          Feet  ft     Tide Temperature    Fahrenheit CF     Units Tab                   Units Tab    defines the settings for Position Format  Map Datum  Heading  and the units of measure  for Distance  Speed  Elevation  Depth and Temperature     The following settings are available     e Position Format    is used to change the coordinate system in which a given position reading is  displayed  You should only change the position format if you are using a map or chart that specifies a  different position format or wish to use a format you are familiar wit
136. rom returning the map to your  present position            Now that you   ve seen how the Status and Map Pages can be used to monitor satellite acquisition Distance      and your present location  lets take a minute to learn how to mark and store your present position  as a waypoint  Since you re in simulator mode  the present position displayed will be the last  position calculated by the receiver  which should be the spot where you ve initialized the unit  This Bearing  will also give you an opportunity to see how the GPSMAP 168 Sounders ARROW KEYPAD and  ENTER MARK key are used for data entry and changing the waypoint name and symbol        Map Cursor Cursor Coordinates       Getting Started    Marking Waypoints    N 38  51 338  Depth  W094  47 929          From Current Location    0 0 000    et               Delete    Press ENTER MARK after entering  the name                 4 Campground     Car      Controlled Area    amp  Convenience Stor  a  Dam                     You can choose from a list of 38 useful  symbols     To mark your present position     1     Hold down the ENTER MARK key until the    New Waypoint    window appears then release the  key  The window will show a default three digit waypoint name number  001   symbol  dot   and  position  You can leave the name as the auto assigned number  but for this exercise  lets change  the name to DOCK        Use the ARROW KEYPAD to highlight the waypoint name field  001  and press ENTER MARK   You will see that just th
137. row cursor to highlight the desired  waypoint or map item on screen and press ENTER MARK     H 38  40 807          ps ste To add a map location to the route that is not an existing waypoint or map item  you must  mark it as a new waypoint  Use the arrow cursor to select the desired map position and press  ENTER MARK  Press ENTER MARK again to confirm the new waypoint  You may also change the    name and symbol of the new waypoint  see page 51      5  As you add each new waypoint to the route  the data window just above the map display will  show the waypoint map item name or    Map Pointer     bearing and distance trom your location  and  coordinates of the cursor  The top data window shows the name of the route as it is being created   using the beginning and end points as the default name  The bottom of the display shows the  number of available and used points  A route line appears on the map to indicate each completed  leg  and a dotted line appears to indicate the distance and bearing to the arrow cursor from the  last route waypoint           You will see    ADD    below the cursor  as you add points        Route Revi    6  Repeat steps 4 and 5 until you have finished defining all route waypoints  then press    QUIT    or    press    MENU    and select    Edit As Text    return to the Review Route Page     7  To change the route name  highlight the default route name and press ENTER MARK  Use the  ARROW KEYPAD to change the character and move to the next space  Press EN
138. rsor or a selected waypoint or map item  The map scale  displays at the bottom right corner of the page     The IN and OUT keys  combined with the ARROW KEYPAD  let you select zoom ranges and  move the cursor  Two basic map operating modes  position mode and cursor mode  determine what    User  ii Waypoint cartography is shown on the map display  Position mode pans the cartography to keep the present  position marker within the display area  while cursor mode pans the cartography to keep the cursor  Map   within the display area   oe So      i i   em T es   A oa   Dom loon The GPSMAP system will always power up in the position mode  with your vessel centered on   LAKE ERIE gh gn CEDAR Par th em ap di spl ay   water Fom a Navaid    When sufficient map coverage is not available to keep the boat centered  the boat icon will move   is  adi ES toward the edge of the display    l e Ifthe boat icon attempts to go off the display  the zoom level may need to be adjusted to keep   Geographic Name Map Scale    cartography on screen     Map Page shown using optional  MapSource data     24    When the ARROW KEYPAD is pressed  the GPSMAP 168 Sounder will enter cursor mode  In  cursor mode        The cursor can be moved over the map display using the ARROW KEYPAD        When the cursor nears the edge of the display  the map will scroll forward under the cursor  Keep  in mind that the boat icon will move with the map scrolling and may go off the display screen  you  may not be able to see yo
139. s designed for a tight fit to  provide additional support when swiveling the unit     Screw the two mounting knobs through the bracket and into the display case       Connect the power data and antenna cables  external antenna only  to the back of the unit  making  sure the locking rings are fully tightened on both connectors     Dw    Connecting the Power Data    The power data cable connects the GPSMAP 168 Sounder to a 10 18 volt DC system and provides  interface capabilities for connecting external devices  The color code in the diagram below indicates the  appropriate harness connections  Replacement fuse is a AGC 3AG   2 Amp fuse           m   H  To Transducer               Pin 11   Yellow  Alarm  Pin 15   Red  10  18 VDC    RED   10 to  18 VDC    Pin 16   Brown  NMEA In     Pin 14   Green  No Connection     Pin 17   Blue  NMEA Out        Pin 18   Black  Ground                                                                          Pin 13   White  No Connection   BLACK  Ground oo     10  18 volts DC   BLUE  NMEA Out  o   RXD    EKK moman         NMEA Dovie  GTE      RXD    Note  During a typical installation  only the Red and XE Ty a e  Black wires are used  The other wires do not have to ain RXD Beacon  be connected for normal operation of the unit  Alarm Relay oe       coil curren                Interfacing   The following formats are supported for connection of external devices  GARMIN proprietary  Differential GPS  DGPS   NMEA 0183  version 2 3   ASCII Text Output  
140. se any of the navigation pages to guide you  back to the MOB point  The MOB waypoint will be stored in the waypoint list and may be deleted  like any other waypoint     To stop navigation to the MOB position   1  Press the NAV MOB key  highlight    Stop Navigation    and press ENTER MARK   2  Choose either    Yes    or    No    and press ENTER MARK to confirm     Routes    The last way to navigate to a destination is to create a user defined route  The GARMIN GPSMAP  168 Sounder system lets you create and store up to 20 reversible routes  with up to 30 waypoints  each  Routes can be created and modified in two ways  The first way is to    Edit as Text    from the Route  Review Page  allowing you to see a list of the waypoints as you create  review  or modify the route  The  second way is from the    Edit on Map    from the Route Edit Map Page  allowing you to see each route  graphically on screen as you create  review  or modify the route  All of the GPSMAP 168 Sounder   s  route functions are accessed through the Main Menu Page or the NAV MOB key     To create a route using text from the Route Review Page     Ne  2     Press the MENU key twice to display the Main Menu Page     Use the ARROW KEYPAD to highlight the    Route    tab and press the MENU key to display the  route options menu     Select the    New Route    option and press ENTER MARK     Use the ARROW KEYPAD to highlight the first empty field under the word    Waypoint    and press  ENTER MARK  This will display t
141. sounds for key presses and alarms messages      Speed Filter    averages speed readings  Choose from    Off        Auto     automatically controls filtering    or    On     allows you to enter a value from 1 to 255 seconds      Language    select from 11 languages for the unit s on screen display     System Mode    select from    Normal     normal navigation      Simulator     for practice ONLY      Sounder  Only    or    GPS Only        Track Control        Auto Track    will steer to the current navigation point     User Track    allows you to  enter a heading in the    Track    field     Speed     lets you enter a speed   Track     lets you enter a heading     Set Position     allows to set your location while in simulator mode  See page 11  starting with step  2  for additional instructions     Transducer      lets you select a transcuder type     Depth Only        Temp    or       Temp Speed          These fields will only appear when the unit is in Simulator Mode     The following options are available by pressing MENU from the    Systm    tab     Restore GARMIN Setup    restores all settings to GARMIN    original setup values for the entire unit     Software Version    displays the units software  basemap version and serial number     Reference    Main Menu   Systm  System  Tab       Time     Sonar P Jump T  a onar Page           V GPS Page  Trip   W Map Page  Map V Compass Page  Sonar A Highway Page    Systm    Units    Active Route Page    Alarm     The checkboxes tu
142. splay  e MOV AVG SPEED     Average moving speed   e MOV TRIP TIMER   Time unit has been moving for a trip   e OFF COURSE     Distance from desired track      POINTER     Arrow points to your destination       e SPEED     Speed over ground water      TIME OF DAY   Current time      TIME TO DEST   Time to final waypoint at current speed and course     TIME TO NEXT   Time to next waypoint at current speed and course    continued    36    Data Field Options continued    e TO COURSE   Distance to desired track      TRACK     Current compass heading      TRIP ODOM   Trip Odometer      TTL AVG SPEED   Total average speed      TTL TRIP TIMER   Total travel time of trip  stopped and moving      TURN     Turn angle to waypoint   e VMG   Velocity Made Good to destination   e WATER SPEED   Speed through the water  only available with additional sonar NMEA data   e WATER TEMP     Water temperature  only available with additional sonar NMEA data     To change a data field     1  From the menu  use the ARROW KEYPAD to highlight the    Change Data Fields    option and press  ENTER MARK     2  Move the field highlight to the data field you want to change and press ENTER MARK     3  Move up or down on the ARROW KEYPAD to highlight the data you want to display  and press  ENTER MARK  To exit  press QUIT     Reference    Map Page Options    MSTTO NEsT POINTER      A  Bearing             Choose the type of data you wish to  display for each field           37    Reference       Sonar Page    Adju
143. st your speed and course  from the Highway Page using the ARROW KEYPAD  As you head toward each waypoint in the tour  route  try adjusting your boat speed and course to get a feel for how the highway works    To adjust the simulated boat speed from the Highway Page     1  Press the UP arrow of the ARROW KEYPAD to increase the speed in 10 knot kph mph increments   Press the DOWN arrow to decrease the speed in the same increments     To steer the boat    1  Press the LEFT and RIGHT arrows of the ARROW KEYPAD    Notice that as you get off course  the highway will move to give you graphic guidance to get  back on course  You can zoom IN or OUT on the highway display for a smaller or larger view  Five    available settings range from 1X to 16X  with a default setting of 8X  The current scale will appear  in the bottom right of the display     To zoom in or out on the highway display   1  Press either the IN or OUT key to increase or decrease the zoom scale     Getting Started       Highway Page    Data Fields    _ S Current    i Waypoint                Present Position    Getting Started       Data Fields Active Route Page     Menu  Tabs          Main Menu Page       TIME TO DEST  TIME TO NEXT  TO COURSE  TRACK   TRIP ODOM       TTL AVG SPEED  TTL TRIP TIMER       You may choose from 27 different  types of data           COT py eao Aa  Dop a    Celes      TOUR3   S   490 Available   10 Used             Submenu  Tabs    The main pages     except the Status and Active Route Pages  d
144. stment  Bar    Fish Arch  lt L  m    Bottom            Data Fields    Depth  Line    Depth  Scale           Flasher          Fish  Symbols    with i  Depth A                   2X Zoom View    Normal View     2X Split Screen Shown     38       represents    a  area shown    y    on 2X View       Sonar Page    The Sonar Page is where your GPSMAP 168 Sounder becomes a powerful fishfinder flasher  The  top of the screen contains data fields which can display any of 27 selectable data field options  while the  Adjustment Bar below the data fields allows direct access to the settings most commonly changed while  using the Sonar Page  These include the depth    Range        Zoom    setting     Gain     sensitivity  and    View      zoom mode only  of the unit  The middle of the page contains a right to left moving sonar image of  the water beneath your boat   Note  Items appear as they pass under your transducer  Those items on  the right side of the screen are closer to you than those on the left   Along the right side of the screen is  an adjustable scale which reflects the depth of the area being displayed     Fish are displayed as a darkened arch or a fish icon in three different sizes  Thermoclines are  shown as shades of gray  The area of strongest sonar return  or whiteline  is displayed as solid gray   Typically  the bottom will be the primary whiteline  A thin whiteline indicates a soft bottom while a  thick whiteline shows a harder bottom  A black line is used to show the 
145. t    1  Press POWER and the Light and Contrast window will appear    2  To decrease or increase the screen contrast  press LEFT or RIGHT on the ARROW KEYPAD    3  Press the ENTER MARK key to finish     The GPSMAP 168 Sounder adjustable screen backlighting is controlled with the POWER key  and  may be adjusted at any time from any page  The backlight can cycle through off  user defined  and  maximum backlight levels by repeatedly pressing the POWER key     To turn on and adjust the backlighting   1  Press POWER and the Light and Contrast window will appear     2  Press POWER again and the user defined level of backlighting will activate  You may adjust this  level by pressing UP or DOWN on the ARROW KEYPAD  If you press POWER one more time  the  backlighting will be at the maximum setting     3  Press ENTER MARK or QUIT when done     The backlight will now cycle through off  the user defined  and maximum backlight levels by  repeatedly pressing the POWER key     The GPSMAP 168 Sounders Status Page provides a visual reference of satellite acquisition  receiver  status  date  time and position coordinates  Each page of the GPSMAP 168 Sounder    system also  features an options menu  giving you access to other functions and features related to the specific  page you are viewing  To get a feel for how the options menus work  lets put the GPSMAP 168  Sounder into simulator mode     To place the GPSMAP 168 Sounder in simulator mode     1  From the Status Page  press the MENU key  A 
146. t    Restore Defaults     highlight    Restore All Map Defaults    if you want all tabs restored  and MapSource Info  press ENTER MARK  m for Main Menu       MapSource Info    shows the number of maps downloaded from the optional MapSource software Map Setup Menu Options  package  Each downloaded map is described by name  and may be deselected if you wish to retain the  map in memory  but not display the data on the Map Page     To display the MapSource Info Page   1  From the Map tab  press MENU then highlight    MapSource Info    and press ENTER MARK                 MapSource Info  2  Use the ARROW KEYPAD to scroll through the list of downloaded maps  Chombers County  Harris County  East    3  To select deselect a map  highlight the name of the desired map  Press ENTER MARK to select  Show Map Name    deselect the map  The map is selected and will be displayed on the Map Page when a         appears chambers County  Texo  al  in the box adjacent to that map  You may also press MENU and choose to    Show All    or    Show    Loran  Oh  West  Topomap     Miami  Fl  Northeast   Topom  None    and press ENTER MARK     Put In Bay  Oh Cn  West   T  e Setup Page Layout    allows you to change the text size and number of data fields that will be v Miami  Fl  Southeast   Topom  displayed  The following options are available  US aed ee   ontnam s  e None    No data fields will be displayed    Small  1 Row  Small text  4 data fields mallee Raikes Abia     Small  2 Rows  Small text  8 d
147. t a waypoint     k    Use the ARROW KEYPAD to select a waypoint with the cursor and press ENTER MARK  The  Waypoint Review page will appear  If the waypoint is located on a map feature  road  intersection   city  lake  etc    details about each map feature at that location will be displayed in a tabbed format  behind the Waypoint Review Page       From the Waypoint Review Page  you may change the waypoint symbol  name  coordinates  or    depth  start a GoTo  Delete the Waypoint or return to the Map Page  see    Reviewing and Editing  Waypoints    on page 50 for more information        Use the ARROW KEYPAD to view the tabbed Map Feature Information pages  Each tab shows    the name of the map feature  the distance and bearing trom your current location  and offers  additional options     To center the selected map item on the Map Page  use the ARROW KEYPAD to highlight the    Show  on Map    button and press ENTER MARK  The    Map Feature    page appears with the map feature  name  distance and bearing from your current position  and position coordinates  Press QUIT once  to return to the Map Feature Review page  or press QUIT twice to return to the Map Page     To create a waypoint trom one of the tabbed information pages  use the ARROW KEYPAD to  highlight    Create Waypt    and press ENTER MARK  The New Waypoint page appears with the name  of the map item set as the default waypoint name  see    Creating Waypoints Graphically    on page  49 for more information on creating 
148. t information available for the range you ve selected  Map  coverage will conform to the following conditions    e When the selected zoom range is covered by either the internal database or MapSource data    cartography will be displayed    e When the selected zoom range is covered by both the internal database and MapSource data    cartography will be displayed using the data with the best resolution     e When the selected zoom range exceeds the resolution of the data in use  overzoom cartography will  be displayed and an    overzoom    warning will appear below the scale field     Reference       Map Page Cursor and Zooming       New Map Waypoint     1036  N 38  48 157  Depth  W094  44 653  ____ _        From Current Location    4 1 141             S  Delete       Creating a New Map Waypoint    at    Ll    Using Built In Basemap  4 rm  Lec  mapsource  Using MapSource Data  a F   US    a Ei G    Overzoom  no additional data    29    30    Reference       Map Page Options    Full Screen Map Onil    Measure Distance F511        Map Page Options    Map Page Options   Many features of the GPSMAP 168 Sounder are menu driven  Each of the main pages have an  options menu  allowing you to custom tailor the corresponding page to your preferences and or select  special features that specifically relate to that page  The data window  located at the top of the main  pages  Except the Status Page and Active Route Page   provides a user selectable layout of various  types of useful data 
149. t to right   Local time scales and sunrise sunset info may not be available  for a few stations   The solid  light vertical lines are in 4 hour increments  and the light  dotted vertical  lines are in 1 hour increments  A dark  vertical line  with arrows at the ends of the line  will indicate  the time of day when using current date and will intersect the tide graph to show their relation           Local Time   0          Day    Max  Level Current Time    Date  High Tide Curve    Current Tide Height  Low Tide Curve  Min  Level    Event  Times    Station Time 0 52  02             The tide curve shows as a shaded area  with higher tides being taller and lower tides shorter  The  dark  horizontal line  with arrows at the ends of the line  indicates the current tide height  The figure  to the left of the line will show the current tide level in feet  The Mean Lower Low Water  MLLW   appears as a solid  vertical line near the bottom of the chart  This line will only appear if the tide  ranges to the zero value or below   The numbers directly below above    LCL and    STA indicate the  maximum minimum levels  respectively  The four data fields below the chart  indicate event times and  levels at which the tide changes starting in the upper left field  going downward  then to the upper  right and down again        Station  Name    Tide  Chart       81    82    Reference       Main Menu   Tide Tab       P  w Canaveral Harbor Entrance    si Cape Canaveral    H    Sebastian Inlet Bridg
150. ta llat oi sonenn eee a eee etme 93 102  Minter ace POMS secca dears cacesscacdenseesszasacs 76  TCI e nail 76 95       109    110       Appendix J    Index   J   Tp L A er ern eereet P   K   OED o E EE 43  Keypad Uca gE og eee eee en I  L   TA IIOG a E 33  kanonan SCS COM eree T3  E OUI EE EET 35 36  Bosc tat E Sete E rare  83 84  M   Magnetic varao ec  3  Ma CN e 69 82  Main Menu PAS rossner 69  Map Configuration            0 00 32 34  Map Dans earen 70  88 89  Map Pi Ceceniei i 8 9  24 37  Map Pare COONS saencan 30 37    e  cae IE a mee 29  Map  ZOOUMING  cicotcctentennetetpedakecesteten 9 29  Map ource Into  Page  siccnesaiveceenieres 35  Measure Distance Bearing         0    ee 31  MENUT oere e E l  E a E E ee 86 87  O  E E A E S 60  Moonrise Moonset eeren 80  N  NAV MOB Key            0 6  1  11 12  56 57   59 60  63  INAVIS UIC VOTING sc otenceconcssnnd enone 90 91  Nearest Tide Sta eestas rnn 82  Nearest Waypoint Ust esricssnstsiitss 54  NMEA Output Formats ssiri 16 95  TOT e E E E si   O  Odometer  hal 0 eea l2  ON COURSE AAT es 78  Opuone SOLE CUS seresa 2  SE o EE tecteeenemicaase l  AT o aie eee 29  P  Packing Ti epee viii  PO Oy E E E l    PeT Dee ere Te l2  A S E E E A E 67  Pora DE CASS eonan asst inet  101 102  Position Formai aeaiee EE Fa  ene D   ee ere 19  POO psec E EERE 4 6  Power Backlight Contrast Key               4   l  TPG E EE E E ii  Proximity Waypoints seesrsssssssss 54 56  Q   DENA  lt 2  E ENT AE l  R   RECENT O nee 21 22  Rec Tao eae eeen ii  R
151. te on the map  Editing Routes  1  From the Route Review page options menu  select    Edit on Map    and press ENTER MARK   To review or modify a route point  Waypoint  1  Place the cursor on a route point and press ENTER MARK  or press MENU and select    Edit as Text      001          l N 38  51 338  Depth  On the Waypoint Review page  you may review and modify the waypoint name  symbol  coordinates  W094  47 929 ____ _  O  and depth  just like on the Waypoint Edit page  see page 51   Make any desired changes and press From Current Location  ENTER MARK again when done  0 0  000    To remove a route point   1  Place the cursor on the desired point and press MENU  Select    Remove    and press ENTER MARK   To move a route point     1  Place the cursor on the desired point and press MENU  Select    Move    and press ENTER MARK   The cursor will now have    Move    displayed below it  Select a route waypoint on the map     2  Move the cursor to the new map position and press ENTER MARK to relocate the point  fi i ale oy  To add turns at the beginning or end of the route      1  Select the first or last route waypoint with the map cursor  and press MENU    2  Highlight the Add    option and press ENTER MARK    3  Move the cursor to the new point or position and press ENTER MARK    4  Ifyou are not inserting an existing waypoint  press ENTER MARK to confirm the new waypoint   5  Repeat steps 3 and 4 to insert additional waypoints  or press QUIT to finish              001 009    10 
152. te the Depth Line from the Sonar Page  Sonar Page Options  1  Press MENU to display the Sonar Page options   2  Using the ARROW KEYPAD  highlight    Show Hide Depth Line    and press ENTER MARK     To change the position of the Depth Line    1  Highlight the    Depth Line    selection on the Adjustment Bar  then press UP or DOWN on the ARROW  KEYPAD to control the position of the line on the chart  The depth is displayed in a window on  the right side of the line        Show Hide Flasher    with the    Flasher    active  a graphic Flasher representation will be displayed  on the far right side of the chart  This graphic Flasher displays structure and bottom returns much the  same as a true Flasher  You may find this feature particularly useful when using    Fish Symbols              R E iak Gain erth Line  gt         Graphic  Flasher  Window       To turn the Graphic Flasher on and off    1  From the Sonar Page menu  highlight    Show Hide Flasher    and press ENTER MARK      Resize Split    enables width adjustment of the Sonar split screen  This option is only available  when a zoom scale other than    No Zoom is selected  You may adjust the size of the split window any   where from 1 4 to 3 4 width of the Sonar Page    To resize the Map Page split screen    1  From the Map Page and Sonar Flasher split screen  press MENU    2  Using the ARROW KEYPAD  highlight    Resize Map    and press ENTER MARK    3  Move the horizontal double arrow LEFT or RIGHT using the ARROW KEYPAD u
153. the MENU key   To access the Main Menu Page   1  Press the MENU key twice     The Main Menu Page lists 14 menu    tabs    that are divided into categories by function  You can  view a particular menu by simply highlighting the desired tab  which will then show any secondary  submenu tabs and options for that tab     To get a feel for how the Main Menu Page works  lets clear out the track log  This will ensure that  you have a clean slate once you start navigating in your home waters   To select the Track submenu tab     1  Use the ARROW KEYPAD to highlight the    Track    menu tab  You will see the options for the Track  tab appear to the right of the Main Menu list     2  Press to the right one time on the ARROW KEYPAD and you will see Active highlighted    The Track Log Page allows you to specify whether to record a track plot  define how it is recorded  and save your current track log  It also provides both an indicator of the percentage of total memory  used and the individual options to save or clear the active track log    To clear the active track log    1  Highlight the    Clear    option and press ENTER MARK  A confirmation page will appear    2  Highlight the    OK    prompt and press ENTER MARK to confirm    3  Press PAGE or QUIT to return to any of the main pages    Congratulations  You   ve now gone through the basic operation of the GARMIN GPSMAP 168  Sounder  Your new digital chartplotter is a powerful tool with many advanced features not covered in  the Gettin
154. the use of authorized  government charts  not replace them  Only official government charts and notices to mariners contain  all information needed for safe navigation     and  as always  the user is responsible for their prudent  use     Use the GPSMAP 168 Sounder at your own risk  To reduce the risk of unsafe operation  carefully  review and understand all aspects of this Owners Manual   and thoroughly practice operation using  the simulator mode prior to actual use  When in actual use  carefully compare indications from  the GPSMAP 168 Sounder to all available navigation sources  including the information from other  NAVAIDs  visual sightings  charts  etc  For safety  always resolve any discrepancies before continuing  navigation     The GPSMAP 168 Sounder should not be used as a navigational aid or depth sounder to prevent  collision  grounding  boat damage or personal injury  The digital depth displayed is the depth under the  transducer and not necessarily the front of the boat  By the time a depth is displayed  most of your boat  may have already passed over that area  We recommend that you operate the boat at a very slow speed  if you suspect shallow water or submerged objects     CAUTION  IT IS THE USER S RESPONSIBILITY TO USE THIS PRODUCT PRUDENTLY  THIS    PRODUCT IS INTENDED TO BE USED ONLY AS A NAVIGATIONAL AID AND MUST NOT  BE USED FOR ANY PURPOSE REQUIRING PRECISE MEASUREMENT OF DIRECTION   DISTANCE  LOCATION  OR TOPOGRAPHY     Introduction       Warnings and  
155. time interval     Resolution    records track plot based upon a user defined variance from your course over  ground  The resolution option is the default setting and is recommended for the most efficient  use of memory and TracBack performance  The distance value  entered in the value field  is  the maximum error allowed from the true course before recording a track point     Distance    records track based on a user defined distance between points      Value    defines the distance or time used to record the track log   e Save    allows you to save the current active track log   e Clear    allows you to clear the active track log currently stored in memory   For the    Saved    tab  the following options are available by pressing MENU   e Show Map    displays the saved track log on a Track Map page   e Delete Track    deletes highlighted saved track log from memory   e Delete All    deletes all saved track logs from memory     You may also activate a TracBack from any track on the    Saved    tab     To activate a TracBack from the    Saved    tab list     1  Using the ARROW KEYPAD  highlight the track you wish to use for a TracBack and press  NAV MOB     2  The    Follow  lt track name gt     will automatically appear highlighted  Press ENTER MARK     3  Choose either    Original     which will navigate you from the end to the start of your trip  or    Reverse      which will navigate you from the start to the end of your trip and press ENTER MARK     Reference    Main Menu
156. tion with    ENT REF    below it     2  Move the cursor to the desired reference point  the point that you want to measure from  and  press ENTER MARK     3  Move the cursor to the point that you want to measure to  The bearing and distance trom the  reference point will be displayed in the data window at the top of the display     4  Press the QUIT key to finish      Show Sonar Show Flasher Hide Flasher    toggles a split screen showing Sonar or Flasher  information on the right side of the Map Page in addition to the map  With    Show Sonar    active  the  unit will act as a fishfinder showing a graphic representation of fish  water depth  thermoclines and  structure  and bottom type and shape  In    Show Flasher    mode  the graphic Flasher displays structure mans  and bottom returns much the same as a true Flasher   To cycle through the    Show Sonar Show Flasher Hide Flasher    options   1  From the Map Page press MENU    a  2  Using the ARROW KEYPAD  highlight    Show Sonar        Show Flasher     or    Hide Flasher     331    3  Press ENTER MARK repeatedly to cycle through the options  You will see the Sonar or Flasher  information appear on the screen behind the menu window on the right side of the display     4  Press QUIT when you have the desired setting to return to the Map Page         H 25  45 066     4080  06 702          Distance    YELL  D    Bearing    Map  Cursor                      Map Page with Sonar information  shown    31       Reference    Map Page O
157. tive Route Page    All six pages are linked together in a simple chain  which allows you to scroll through the pages in  Status Page Map Page either direction using the PAGE and QUIT keys    a IMM    s     m j nt  lt a Poe ee   Es es   os   laoo assie TOURA Te oot   EE or rss  Tours 17  3S    W094  47 928 ios sae                                                 Status Page Sonar Page Map Page Compass Page Highway Page Active Route Page  PAGE               ie        es     To continue the tour  lets move on to the next page  the Map Page    To scroll to the next page in sequence    1  Press the PAGE key    The GPSMAP 168 Sounders Map Page combines digital chartplotting with a user selectable display  of navigation data and a built in worldwide database to 20 mi  It will also be the page you use most  to create and edit waypoints and routes  Before we take off on our practice route  let   s take a brief  look at its various features and displays    The map display shows your    boat    as a triangle marker on an electronically generated chart   Geographic names  roads  markers and buoys that are provided by the optional MapSource data are  also shown  It also displays your track  routes and nearby waypoints  An on screen cursor lets you  pan to other map areas  determine the range and bearing to a position  and perform various waypoint  and route functions    The data window  located at the top of the page  provides a user selectable display of various  navigation data  includin
158. trols the depth    Scale    displayed vertically along the right side of the chart  The    depth    Scale    can be configured to display four different ways  as an    Overlay     in the    Corners      with    Basic    or    No Scale       Noise Reject    helps filter unwanted noise from the chart  The    Noise Reject    tool can be  turned    Off     set to    Auto     automatically adjusts for optimum viewing  or to a fixed    Low         Medium    or    High    setting     When setting the Noise Reject tool  the HIGHER the noise rejection setting  the unit is    more likely to NOT show fish or structure     Keel Offset    allows the user to offset the surface reading for the depth of a keel  This makes  it possible to measure depth from the bottom of your keel instead of from the transducer   s  location  Enter a positive number to offset for a keel  It is also possible to enter a negative  number to compensate for a large vessel that may draw several feet of water  The    Keel Offset     will be reflected in the depth reading     Water Type    since sound waves travel through    Fresh    and    Salt    water at different rates it is  necessary to select the    Water Type    to ensure accurate readings on the unit     Remember    the unit can be set to remember    All    of the Sonar settings including the  Adjustment Bar  even after it has been powered off and back on   or just the    Setup Only     items on the Sonar tab     Calibrate Water Speed    this is only availab
159. types of data  For  additional details on the Active Route Page  see page 68     Route  Name    Route  Points    Reference       Highway Page Options    ide Tracks  Configure Highway  Setup Page Layout    Change Data Fields  ten for Main Henu          Highway Page Options Menu       Active Route    GPSHAP TOUR    Waypoint Distance 4 Course    Selectable  Data Field          TOTALS  17 3  337     47    48    Reference       Creating Waypoints       New Waypoint     002  N 3851 338  Depth  W094  47 929   n         From Current Location    0 0 000    et           S  Delete       Press ENTER MARK to use the  default name and symbol        New Waypoint    m02   N 38  51 338  Depth  W094  47 929               From Current Location  0 0  000          S  Delete          Highlight a field and press ENTER   MARK to enter a new symbol  name  or depth     Creating and Using Waypoints  The GARMIN GPSMAP 168 Sounder stores up to 500 alphanumeric waypoints with a user defined  icon and depth available for each waypoint  Waypoints can be created using three basic methods     ENTER MARK key  used primarily for marking your present position  the ENTER MARK key also  provides options that allow you to select a map position or map item from the map display     Graphically  allows you to define a new waypoint position from the map display using the ARROW  KEYPAD     Text Entry  allows you to enter a new waypoint    position coordinates manually     ENTER MARK Key   The GARMIN GPSMAP 168 Sounders 
160. unwanted waypoints to make space  for new entries     87    Appendix D       Map Datums       The GPSMAPS built in world wide database includes  coverage down to 20 n m   30 km   Note that the GPSMAP  168 Sounder basemap is valid to 75   north and 60   south  of latitude     The    User    datum is based on a WGS 84 Local datum and  is an advanced feature for unlisted or custom datums  Check  your local library or on the world wide web for educational  materials on datums and coordinate systems     88    Adindan  Afgooye  AIN EL ABD    70    Anna   Ast    65  ARC 1950    ARC 1960  Ascnsn Isld    58  Astro B4 Sorol  Astro Ben    E     Astro Dos 71 4  Astr Stn    52  Aus Geod    66    Aus Geod    84    Austria  Bellevue  IGN   Bermuda 1957  Bogata Observ  Campo Inchspe  Canton Ast    66  Cape   Cape Canavrl  Carthage  CH 1903  Chatham 1971    Corrego Alegr    Adindan  Ethiopia  Mali  Senegal  Sudan  Afgooye  Somalia    AIN EL ANBD 1970  Bahrain Island  Saudi  Arabia    Anna   Astro    65  Cocos I     ARC 1950  Botswana  Lesotho  Malawi   Swaziland  Zaire  Zambia  Zimbabwe    Kenya  Tanzania   Ascension Island    58  Ascension Island  Sorol Atoll  Tern Island   Astro Beacon    E     Iwo Jima   Astro Dos 71 4  St  Helena  Astronomic Stn    52  Marcus Island    Australian Geod    66  Australia  Tasmania  Island    Australian Geod    84  Australia  Tasmania  Island    Austria   Efate and Erromango Islands   Bermuda 1957  Bermuda Islands   Bogata Obsrvatry  Colombia   Campo Inchausp
161. ur present position      e When the cursor is stationary  a fixed coordinate position will appear in the position field  Note that  the distance and bearing will change as the boat   s position changes     e Whenever you zoom in cursor mode  the cursor will be centered on screen     e To return to position mode  press the QUIT key        A When the cursor reaches the edge of the map  the unit may pause as it loads new  map data     Using the Cursor    The cursor allows you to pan away from your present position and scroll to other map areas around  the world  even outside of your current MapSource coverage   As you pan past the edge of the current  map display  the screen will actively scroll forward to provide continuous map coverage     To move the cursor   1  Press the ARROW KEYPAD to move the cursor in an up  down  left or right direction     As you move the cursor  the distance and bearing from your present position to the cursor will be  displayed on the data window  along with the cursors position coordinates  Keep in mind that when  the cursor is stationary  the distance and bearing from your present position will change as your boat  moves  The cursor may also be used to    snap to    on screen waypoints and map items  allowing you to  review a selected position directly from the map display     Reference       Map Page Cursor                   Move the cursor over an item on the  map to highlight it     25    To hide the cursor and re center your position on screen 
162. ure eases the transition from using Loran to using GPS  The   i    GPSMAP unit automatically converts GPS coordinates to Loran TDs for those who have a collection  of Loran fixes for favorite fishing spots and other waypoints recorded as TDs  You can display your    osition as a TD or enter waypoints as TDs  The accuracy to be expected from this conversion ZSlAutoLocate   P YP y P ee ce   is approximately 30 meters  When the unit is placed in the Loran TD format mode  it simulates yi F ona 317   the operation of a Loran receiver  Position coordinates may be displayed as TDs  and all navigation   ca for Main Menu    7   functions may be used as if the unit was actually receiving Loran signals  o    j MOS W094  4 7 931                Using the Loran TD Format    When creating new waypoints using Loran TD coordinates  you must set the correct Loran chain  number and secondary stations in the Setup TD field before storing the waypoint  After the waypoint                Position F t  is stored in unit memory  it will always reference the Loran chain number and secondary stations Route hddd mm mmm  currently selected in the Setup TD field  If you enter a different Loran chain number  change the Trie   Maidenhead       secondary stations or offsets in the Setup TD field  the active waypoint information will reflect those      l     cae wap  New Zealand   changes  Since the GPSMAP unit does not rely on the Loran signal for navigation  it can reference a    You may change to Loran TD 
163. velled since last reset  Also see    Odometer        Total Average Speed    Average speed of unit for both moving and stopped speeds since last timer  reset     Total Trip Timer    Total time the unit has been in operation since last reset of the trip timers     Turn    The angle difference between the bearing to your destination and your current track     L  indicates you should turn left     R    indicates you should turn right  The degrees indicate the angle A  you are off course     ACTIVE FROM    WAYPOINT    VMG    Velocity Made Good  The speed you are closing in on a destination along a desired course  Also  referred to as the    vector velocity    to your destination     91    92    Appendix F       Specifications    Physical Specifications  Size   Weight   Display     Case   Temperature Range     Performance  Receiver   Acquisition Times    Warm    Cold    AutoLocate   Update Rate   Position Accuracy     Velocity   Dynamics   Sounder Power     Frequency     Power  Source   Usage   Fuse     4 63  H x 6 0  W x 2 75  D  11 7cm x 15 2cm x 7cm   1 lb  6 oz    763 kg     4 2  diagonal  10 7cm  high contrast  4 level gray LCD with backlighting  240 x  240 pixels     Fully gasketed  high impact plastic alloy  waterproof to IEC 529 IPX 7  FF to 158  F   15  C to 70  C     Ditferential ready 12 parallel channel receiver tracks all satellites in view    Approx  15 seconds  Approx  45 seconds  Approx  5 minutes  l second  continuous    15 meters  49 feet  RMS  1 5 meters  3 15 fe
164. y Page features a menu options page that provides access to  functions and features relating to the Highway Page and the layout options    To display the Highway Page options    1  Press MENU    To select a menu option    1  Using the ARROW KEYPAD  highlight the desired option and press ENTER MARK     The following options are available from the Highway Page menu      Show Hide Tracks    toggles the display of track lines on off      Configure Highway    allows you to select what waypoints are shown on the Highway display   Four options are available      Rte  amp  Nearest    all route and nearest waypoints displayed      Route Only    only waypoints in the route will be displayed   e Active Only    only the active waypoint will be displayed   e Hide All    no waypoints will be displayed   To configure the highway display   1  From the menu  highlight    Configure Highway    and press ENTER MARK   2  Highlight the desired option and press ENTER MARK      Setup Page Layout    allows you to change the text size and number of data fields that will be  displayed   e Change Data Fields    allows you to specify the type of data displayed in each data field used  on the map display     For detailed instructions on changing the data fields and layout of the Highway page  see pages  35 37     Active Route Page   Whenever you have activated a route in the GPSMAP 168 Sounders system  the Active Route page  will show each waypoint of the active route  along with various  user selectable 
165. you out of the Main Menu Page  Main Menu Page           477 Available  23 Used       The Main Menu tabs are    e Waypt    allows you to create  edit or delete waypoints  See pages 48 56    e Route    allows you to create  edit  activate or delete routes  See pages 61 67   e Track    lets you record a track  define how it is recorded and displayed       Trip    provides trip speeds  odometers  averages  and trip timers       Time    sets up time format  time zones  and daylight savings    e Pages    enables main pages to be shut off  turned on  or jumped to       e Map    sets up Map Page features  zooms  and text size  See pages 32 34     69    e Sonar    sets up Sonar Page features  speeds and calibrations See pages 42 44   Reference    Systm    defines beeper and simulator  restores setup  and displays software version        e Units    defines position format  datum  heading  and distance and speed units        Main Menu  e Comm     interface settings for use with a PC or second device   Track Tab e Alarm    sets up alarms for anchor drag  arrival  off course  and clock   e Celes    Celestial page shows sun moon time cycles and positions   ieee a    Tide    Tide page show 12 hour tide chart with levels and times   Ld ees 297    Track Tab    lets you specify whether or not to record a track log  an electronic    breadcrumb trail  recording of your path   define how it is recorded  or save track log data for future use  The Track Tab  also provides an indicator of the memory
166. ypad moves you character by character a changes numbers and  through the list  Pressing and holding the keypad moves you rapidly through the list  letters    4  Use the ARROW KEYPAD LEFT RIGHT arrows to move to the next character on the line or 3      backwards to edit characters  If there are more than two lines of data  keep pressing to the RIGHT N ee gS ia   Hoge  re ert  to drop down to the next line    ze Pressing LEFT or RIGHT   5  When data entry is completed  press ENTER MARK to accept data  then move to the next a  gt      pP on the ARROW KEYPAD  programmable field  Not all data fields are programmable  like the date and time  When moving  lt i     moves the cursor along  about a page with these type of fields  the cursor will skip over them  neooaoe ne   Every field and button on this page can be programmed or activated      m Format Data Entry Field  Track Hour    Trip Mo Zone    Central            Waypoint Edit   s      e A waypoint symbol can be selected o The waypoint can be renamed  Pages   Daylight Savings Time  m J  mbols f HONG  n Ma Auto     N 38  51 338  Perth Current Time and Date Non programable  W094  47 929  ____      A depth will be set by the sonar 11 07 47 15 JAN 02  data fields     The coordinates can be changed  oo ann      e Option buttons can be activated                          Getting Started    Initializing the Receiver              Acquiring Satellites  Ay       DOP    saz    zi ae  se       W  1a   at   of ON       o             GPSMAP 168
    
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