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Reference

Main Menu: Tide Tab

To view the chart for a tide station nearest to your current location:

1. From the Tide tab, highlight the ‘At’ ﬁ eld and press

ENTER

2. Press

MENU

, select ‘Nearest to Boat’ and press

ENTER

3. Select the desired station from the list and press

ENTER

4. Highlight ‘Show Chart’ or ‘OK’ and press

ENTER

If you are not within this range, you will see a message “None Found”. Use the ‘Nearest To Other’

Find option and select a location closer to a tide station.

To ﬁ nd the chart for a tide station nearest to a location on the map:

1. On the Map Page, press

FIND

, then select ‘Tide Stations’ and press

ENTER.

2. Press

MENU

, select ‘Nearest To Other’ and press

ENTER

3. Use the

ARROW KEYPAD

and the

ZOOM IN/ZOOM OUT

keys to select a position on the map

and press

ENTER

4. Highlight the desired station from the list and press

ENTER

to view the information page for that

chart (this shows the station’s distance and bearing from the selected map location, along with the
station’s position coordinates).

5. Highlight ‘Show Chart’ and press

ENTER

To view the tide chart for another date:

1. With a chart displayed for the desired station, highlight the ‘On (date) ﬁ eld and press

ENTER

2. Enter the desired date with the

ARROW KEYPAD

and press

ENTER

3. To return to the current date, press

MENU

, highlight ‘Use Current Date’ and press

ENTER

To view a chart’s details for another time of day:

1. With the desired chart displayed, press

MENU

, select ‘Move Cursor’ and press

ENTER

2. Press the

ARROW KEYPAD

LEFT or RIGHT to view the chart at a different time

3. To return to the current time, press

MENU

, highlight ‘Stop Moving Cursor’ and press

ENTER

Tide Station List Menu Options

Press

MENU

on the Tide Station list to access additional

search options. The ‘Nearest to Next’ and ‘Nearest to Desti-
nation’ options are enabled when you are actively going to a
destination (following a Go To or a Route, for example). You
must select a location within 100 nm. of a tide station.

You may move the
cursor to see tide
heights at different
times. Tide data will
show in a black box
when in cursor mode.

188188C238 Manual Part 2.indd 73

6/30/2003, 3:32:23 PM

Содержание GPSMAP 188 Sounder

Страница 1: ...owner s manual and reference guide chartplotting receiver depth nder GPSMAP 188 188C 238 Sounder GPSMAP 188C Shown 188Ccover indd 1 6 30 2003 3 24 39 PM...

Страница 2: ...to print one copy of this manual or 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 fu...

Страница 3: ...ovide you with a basic working knowledge necessary to use the unit to its fullest potential Part Two is divided into sections that provide detailed references to the advanced features and opera tions...

Страница 4: ...s However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined...

Страница 5: ...ons However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determin...

Страница 6: ...SEQUENTIAL 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 s...

Страница 7: ...e 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...

Страница 8: ...k to see that your package includes the following items If any parts are missing please contact your Garmin dealer immediately Standard Package GPSMAP 188 188C 238 Sounder Unit GA 29 External Antenna...

Страница 9: ...Worldwide marine basemap to 20 miles includes detailed ocean river and lake coast lines cities interstates US state highways and local thoroughfares 50 reversible routes with up to 254 188C 50 on 188...

Страница 10: ...age Options 36 Compass Page 41 Numbers Page 42 Highway Page 42 Waypoints 44 Creating 44 Reviewing and Editing 48 Going to a Destination 53 Go To 53 TracBack 54 MOB Key 56 Routes 57 Creating 57 Followi...

Страница 11: ...enter data It also controls cursor movement on the Map Page FIND Key activates the nd function to search for nearby items and user waypoints ENTER MARK Key selects a highlighted menu option When ente...

Страница 12: ...To ensure proper initialization the GPSMAP 188 188C 238 Sounder is shipped from the factory in AutoLocate mode which allows the receiver to nd itself anywhere in the world To speed up the initializat...

Страница 13: ...D or 3D during this process it is not necessary to initialize the unit The GPSMAP 188 188C 238 Sounder will now begin searching for the appropriate satellites for your region and should acquire a x wi...

Страница 14: ...list or a eld 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 key t...

Страница 15: ...eypad moves you rapidly through the list 4 Use the ARROW KEYPAD LEFT RIGHT arrows to move to the next character on the line or backwards to edit characters If there are more than two lines of data kee...

Страница 16: ...er begins acquiring satellites From this or any other page you may also adjust the backlighting The GPSMAP 188 188C 238 Sounder s adjustable screen backlighting is controlled with the POWER key and ma...

Страница 17: ...P or DOWN arrow of the ARROW KEYPAD to highlight the Start Simulator option and press ENTER Choose No to the retail demonstration and press the ENTER key 3 Press the ENTER key to con rm the Running Si...

Страница 18: ...ef 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...

Страница 19: ...he 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 act...

Страница 20: ...to where you left off 5 After you have entered all the letters press ENTER MARK to con rm the name 6 To access the waypoint symbol page highlight the waypoint symbol eld which is to the left of the wa...

Страница 21: ...re going to select a pre programmed tour route using the rst method This will also show how the MENU key is used throughout the GPSMAP 188 188C 238 Sounder system to provide tab style options and func...

Страница 22: ...e second route waypoint your position coordinates and a compass ribbon which shows you which way to go To get started let s enter a speed for our vessel which we can do from the Main Menu Page To ente...

Страница 23: ...point 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 With the waypoint highlighted press ENTER 2 To re...

Страница 24: ...t a 2X zoom Dual 2X on one half and normal range dual frequency Dual returns on the other half The current display mode will be displayed at the bottom of each sonar display On color models sonar retu...

Страница 25: ...ed option and press ENTER to access the adjustment window To easily exit any of the adjustment options press the QUIT key To change an Adjustment Menu setting 1 Select an adjustment option to change u...

Страница 26: ...estination 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 dir...

Страница 27: ...f 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...

Страница 28: ...ROW KEYPAD to steer the boat adjust the heading NOTE In simulator mode you may also change the simulated speed by pressing UP or DOWN on the ARROW KEYPAD from the Compass page Notice that as you get o...

Страница 29: ...hlight TIME OF DAY and press ENTER You will see a scroll bar on the right side of the window indicating your current position on the entire list of options 5 Press QUIT when nished Active Route Page P...

Страница 30: ...for that tab To get a basic feel for how the Main Menu page works let s delete the two waypoints you created during the simulated tour This will ensure that you have a clean slate once you start navig...

Страница 31: ...e but automatically returns to it s Normal operation mode when you shut it off and turn it back on To turn the GPSMAP 188 188C 238 Sounder off 1 Press and hold the POWER key for about 2 seconds until...

Страница 32: ...sition marker triangle within the display area while cursor mode pans the cartography to keep the cursor arrow pointer within the display area The GPSMAP system will always power up in position mode w...

Страница 33: ...r 1 Use the ARROW KEYPAD to move the cursor to the desired waypoint or map item If there are several items grouped closely together zoom IN closer for a better view 2 When a waypoint or map item is se...

Страница 34: ...eature 2 Press ENTER to capture the cursor location The Information page for that feature appears Use the ARROW KEYPAD to highlight Create Wpt and press ENTER 3 The New Waypoint window appears With OK...

Страница 35: ...r 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 speci cally relate to that pag...

Страница 36: ...and press ENTER To exit press QUIT The following options are available for display in data elds on the main pages BEARING Compass direction from your position to destination COMPASS Compass ribbon COU...

Страница 37: ...ometer TURN Directional amount of turn needed to match bearing VELOCITY MADE GOOD Velocity Made Good to destination VOLTAGE Current voltage reading being received by unit WATER SPEED Speed through the...

Страница 38: ...To measure the bearing distance between two points 1 Highlight the Measure Distance option and press ENTER An on screen pointer appears on the map display at your present position with ENT REF below...

Страница 39: ...e tab feature making it easier to organize the various settings for ease of use The following lists the settings available under each tab General Detail Orientation AutoZoom Source Basemap Data Card M...

Страница 40: ...bed by name and may be deselected if you do not wish to display the data on the Map Page To view data card map information 1 Highlight the Data Card Maps option box and press ENTER 2 Use the ARROW KEY...

Страница 41: ...re drawn using a symbol set similar to the IALA symbol set Text Size None Small Medium and Large controls the screen size of the name Light Sectors Controls the drawing of light sectors on the map Whe...

Страница 42: ...the feature appears on the screen Map Outlines On Off toggles the coverage boxes for BlueChart MapSource data On and Off Turn Declutter On Off toggles between showing spot soundings and map outlines f...

Страница 43: ...HT to scroll through the options in the upper left of the display then press ENTER to access the desired option s adjustment window OR 1 Press MENU highlight Adjustments and press ENTER A list of all...

Страница 44: ...re 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 screen and does not show the original depth scale 4...

Страница 45: ...is cluttered lowering the sensitivity may increase the clarity of the display Target Level adjusts how dark light a return or target is displayed on the screen A Color Bar see also page 39 appears on...

Страница 46: ...KEYPAD DOWN until the setting bar is all the way at the bottom of the range and reads Off Scroll adjusts the rate that the graph scrolls from right to left If you are sitting still or the graph is mo...

Страница 47: ...t 2 Use the ARROW KEYPAD to move the cursor onto the target underwater drop off stump etc you want to mark The data window at the top of the screen displays the cursor s depth coordi nates and bearing...

Страница 48: ...e unit will return to the last edited selection eld To change a setting on the Sonar tab 1 Using the ARROW KEYPAD highlight the desired eld and press ENTER and the available options appears 2 Highligh...

Страница 49: ...ting see page 35 Flasher with the Flasher active a graphic Flasher representation will be displayed on the far right side of the graph This graphic Flasher displays structure and bottom returns much t...

Страница 50: ...speed is used instead If the new speed is correct highlight OK and press ENTER If you wish to manually enter a calibration press ENTER on the speed eld enter a new speed and press ENTER 4 You may also...

Страница 51: ...aypoint If the arrow points any direction other than up turn toward the arrow until it points up then continue in that direction The bearing pointer bearing bug and or compass ring may point in variou...

Страница 52: ...e black vertical indicator or arrows until it lines up with the red bar in the middle The bottom section of the screen provides visual guidance to the waypoint on a graphic highway display The line do...

Страница 53: ...on changing the data elds and layout of the Highway page see pages 26 28 Set Up Highway jumps to the Hiway tab of the Main Menu allowing you to select which waypoints and tracks are shown on the High...

Страница 54: ...x to mark your present position This can be determined by looking at the GPS tab on the Main Menu To mark your present position 1 Press and hold the ENTER MARK key until the New Waypoint window appea...

Страница 55: ...cation not the map cursor s position 3 The New Map Waypoint page appears To accept the waypoint with the default name and symbol press ENTER To change the name symbol position or add a comment or dept...

Страница 56: ...opriate eld and press ENTER Make your changes and press ENTER when nished 5 Use the ARROW KEYPAD to highlight OK and press ENTER to save the waypoint A waypoint may also be created by projecting the d...

Страница 57: ...ptions Two additional options are available by pressing MENU on the New Waypoint and New Map Waypoint Pages Append To Route and Move Waypoint these menu options also appear on the Waypoint Edit and Wa...

Страница 58: ...o view the Main Menu Use the ARROW KEYPAD to highlight the Points tab then highlight the desired waypoint from the User or Proximity lists 2 Press ENTER to display the Waypoint Edit page If the waypoi...

Страница 59: ...t name position and distance and bearing from your current position 2 To move the waypoint press ENTER A MOVE label will now appears under the cursor arrow It may be necessary to use the IN and OUT ke...

Страница 60: ...he bottom of the User page with the stored waypoints arranged in numerical alphabetical order To scroll through and review the waypoint list 1 With the ARROW KEYPAD highlight the Points tab on the mai...

Страница 61: ...points by symbol 1 From the User tab highlight the waypoint to be deleted and press MENU then select Delete By Symbol and press ENTER 2 Use the ARROW KEYPAD to highlight the symbol of the waypoint s t...

Страница 62: ...esired ON or OFF setting and press ENTER The following options are available from the Proximity submenu of the Points tab Delete Alarm removes selected waypoint from proximity list Delete All removes...

Страница 63: ...de Stations etc from this list 4 Select a waypoint from the By Name or Nearest list then press ENTER To display the Waypoint Review page for the selected waypoint 5 With the Go To button highlighted p...

Страница 64: ...tored in the receiver s memory which eliminates the need to store waypoints along the way TracBack routes are created by reducing your track log into a route of up to 50 turns and activating an invert...

Страница 65: ...light the track you wish to follow and press ENTER 3 Choose either Original which will navigate you from the start to the end of your trip or Reverse which will navigate you from the end to the start...

Страница 66: ...etting up the Track options and saved tracks see pages 75 76 MOB Key The GPSMAP 188 188C 238 Sounder s Man OverBoard function MOB lets you simultaneously mark and set a course to a position for quick...

Страница 67: ...int or map item on screen and press ENTER Map items will not appear in the waypoint list To create a waypoint from a map item see page 45 4 To add a new waypoint to the route use the map cursor to sel...

Страница 68: ...ally highlighted Choose Show Map and press ENTER to view the point on the map then press QUIT to return to the Waypoint Point Review page With OK highlighted press ENTER to add the point to the route...

Страница 69: ...EYPAD to highlight the desired route and press NAV 2 With Follow route name highlighted press ENTER Highlight Activate or Invert and activate and press ENTER To deactivate stop following the route 1 P...

Страница 70: ...ap items one at a time from the list To review individual route points 1 Highlight the desired point and press ENTER 2 On the Point Review window you may choose Next highlight the next point on the ro...

Страница 71: ...e user waypoints only and Add To remove a route waypoint 1 Highlight the Remove option and press ENTER To move a route waypoint 1 Highlight the Move option and press ENTER 2 Move the cursor to the new...

Страница 72: ...From either the Route Review or Active Route pages use the ARROW KEYPAD to highlight the point you wish to insert the new point before and press MENU 2 Highlight Add Before and press ENTER 3 From the...

Страница 73: ...to select the desired item 3 To enter planning information from the Route Review Page only press MENU and select Trip Planning from the options list Enter the gures for Speed Fuel Flow Departure Time...

Страница 74: ...ilable by pressing MENU on the Active Route page Hide Show Numbers see page 26 and 28 for instructions Change Numbers see pages 26 28 for instructions Edit on Map see pages 61 62 for instructions Add...

Страница 75: ...cation 1 From any page press FIND 2 Using the ARROW KEYPAD highlight the desired category from the list and press ENTER 3 For Waypoints and Cities you may search using By Name or Nearest Use the ARROW...

Страница 76: ...your search from any waypoint route list entry map item or tide station Highlight the item you want to Find from and press the FIND key Find Options Using the Find options you may search from various...

Страница 77: ...UP or DOWN to select individual items 2 Press either MENU for additional submenu options or press ENTER MARK to make changes to the highlighted item Press LEFT on the ARROW KEYPAD to get back to the...

Страница 78: ...ition is shown in three stages No signal strength bars the receiver is looking for the satellites indicated Light White signal strength bars the receiver has found the satellite s and is collecting da...

Страница 79: ...may take up to 15 20 minutes then 1 2 minutes afterwards When WAAS differential correction has been received for GPS satellites numbers 32 or below a D appears in the signal bar of the sky view and 2...

Страница 80: ...or GPS Coverage the receiver is no longer tracking enough satellites for a 2D or 3D x Receiver Not Usable the receiver is unusable possibly due to interference or abnormal satellite conditions Turn th...

Страница 81: ...the WAAS capability of the receiver on or off Track Up North Up allows you to select between a north up or track up sky view display for the GPS Info display only AutoLocate allows the receiver to loc...

Страница 82: ...he top will indicate the time of day when using current date and will intersect the tide graph to show their relation The tide curve shows as a shaded area with higher tides being taller and lower tid...

Страница 83: ...ng with the station s position coordinates 5 Highlight Show Chart and press ENTER To view the tide chart for another date 1 With a chart displayed for the desired station highlight the On date eld and...

Страница 84: ...List highlight any category except Other Location and press ENTER If you wish to reference a Find item select from the Find list and press ENTER The location the unit is using appears in the At eld Th...

Страница 85: ...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...

Страница 86: ...emory Delete All deletes all saved track logs from memory To review and edit a track 1 On the Saved Track tab of the Main Menu highlight the desired track and press ENTER The Saved Track window appear...

Страница 87: ...re in transit to the caller s position A non emergency DSC Position Report allows mariners to exchange and display the positions of one another Once a DSC position is received the mariner may choose t...

Страница 88: ...Forms 159 and 605 U S Federal User Federal users can obtain MMSI assignments from their agency radio spectrum management of ce These procedures are currently under review by the NTIA National Telecomm...

Страница 89: ...Distress Call has been received an alarm will sound if enabled The alarm only sounds on a Distress Call and it will not sound on a Position Report Distress Calls are broadcasted to all DSC users in r...

Страница 90: ...Sort By Name Sort By Call Type Delete only after highlighting a particular call and Delete All To Review a Call 1 From the DSC tab of the Main Menu and the Log or Call List tab highlighted press DOWN...

Страница 91: ...he Arrow Keypad highlight the Delete button and press ENTER MARK to delete the entry or highlight the OK button and press ENTER MARK to accept the entry After creating a New Directory Item entry the n...

Страница 92: ...ontrol for saving waypoints routes and tracks to a data card When data is saved to a data card it may be exchanged with other compatible units and Garmin s MapSource PC program To transfer data to fro...

Страница 93: ...select a main page 1 Use the ARROW KEYPAD to highlight the box to the left of the page name Press ENTER to select deselect that page When a page is selected a 9 appears in the box You must leave at le...

Страница 94: ...contains setup options for the Sonar Page See pages 38 40 Systm System Tab controls system settings for beeper speed lter languages system mode simulator controls restores factory settings and displa...

Страница 95: ...rdinate system in which a given position reading is dis played You should only change the position format if you are using a map or chart that speci es a different position format or wish to use a for...

Страница 96: ...set to User Mag Var highlight the heading reference eld immediately to the right and press ENTER 2 Use the ARROW KEYPAD to enter the magnetic variation at your current position and press ENTER Distan...

Страница 97: ...EA In NMEA Out supports the input output of standard NMEA 0183 data and sonar NMEA input support for the DPT MTW and VHW sentences None provides no interfacing capabilities Port 2 Garmin DGPS used to...

Страница 98: ...selected additional elds are provided to con trol a Garmin differential beacon receiver directly from your GPSMAP 188 188C 238 Sounder You may have the unit automatically scan for the DGPS beacon sign...

Страница 99: ...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 trans mitter problems or...

Страница 100: ...Advanced NMEA page 1 Highlight NMEA In NMEA Out in the Serial Data Format eld and press MENU Select NMEA Setup and press ENTER 2 To change the settings place the highlight over the desired eld and pr...

Страница 101: ...turn the off course alarm on and off Sonar Tab Shallow Water Deep Water set alarms to sound when you enter an area of speci ed depth that is too shallow and or too deep You must be receiving sonar da...

Страница 102: ...he antenna or clean it with harsh solvents 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...

Страница 103: ...ture range for the GPSMAP 188 188C 238 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 scree...

Страница 104: ...et as a template outline the center relief area and mark the location of the four screw holes centers on your bulkhead or other surface gure 1 3 Cut the relief hole from the panel and drill the four 0...

Страница 105: ...interface must be set to NMEA In NMEA Out see page 89 90 If connecting to COM1 the unit must be set to NMEA In NMEA Out COM 2 Rx COM 2 Tx COM 1 Tx COM 1 Rx DC Power Source Complete information concern...

Страница 106: ...the best of both wide and narrow cone angles Included in the GPSMAP 188 188C 238 Sounder with transducer package is a 200 50 kHz dual frequency 10 40 cone angle temperature sensing transom mount tran...

Страница 107: ...ation Transom Mount Transducer depth temp 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 Make...

Страница 108: ...cation 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 NOTE Many modern hul...

Страница 109: ...ble to get a depth distance reading when out of the water 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 s...

Страница 110: ...d and about 1 2 will still be exposed when it is properly inserted If the unit is on a con rmation tone sounds and a message displays on the screen noting the card details when the card has been prope...

Страница 111: ...t store the GPSMAP 188 188C 238 Sounder where prolonged exposure to temperature extremes may occur such as in the trunk of a car as permanent damage may result User informa tion such as waypoints rout...

Страница 112: ...sion is approximately thirty meters When the unit is placed in the LORAN TD format mode it simulates the operation of a LORAN receiver Position coordinates may be displayed as TDs and all navigation f...

Страница 113: ...tting and press ENTER 3 Press QUIT to return to the Main Menu If the active GRI Chain secondary stations or offsets have been changed since the waypoint was created the waypoint will now reference the...

Страница 114: ...1968 Dos 1968 Gizo Island New Georgia Islands Dutch Dutch Easter Isld 67 Easter Island 1967 European 1950 European 1950 Austria Belgium Denmark Finland France Germany Gibraltar Greece Italy Luxembourg...

Страница 115: ...BWI Naparima BWI Trinidad and Tobago Obsrvtorio 66 Observatorio 1966 Corvo and Flores Islands Azores Old Egyptian Old Egyptian Egypt Old Hawaiian Old Hawaiian Mean Value Oman Oman Oman Ord Srvy GB Ol...

Страница 116: ...hin 100 miles of the speci ed point Try another area Off Course Alarm You have exceeded the speci ed off course distance Processor Failed Unit Needs Repair Internal problem with the unit Contact your...

Страница 117: ...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 Tra...

Страница 118: ...point based on current speed and track ETA at Destination The estimated time you will reach a Go To destination or the nal waypoint in a route ETA at Next The estimated time you will reach a Go To des...

Страница 119: ...to get back to the desired course and proceed along your route Track The direction of movement relative to a ground position Also referred to as ground track Trip Odometer A running tally of distance...

Страница 120: ...5 to E022 5 1 E022 5 to E037 5 2 E037 5 to E052 5 3 E052 5 to E067 5 4 E067 5 to E082 5 5 E082 5 to E097 5 6 E097 5 to E112 5 7 E112 5 to E127 5 8 E127 5 to E142 5 9 E142 5 to E157 5 10 E157 5 to E17...

Страница 121: ...d on the chart in the order that it is returned rst returned rst on the chart The diagram in the sidebar demonstrates this showing an underwater scene as it would be displayed on the chart Generally s...

Страница 122: ...quency approximately covers the area of a 6 foot diameter circle at a 30 foot depth When using the GPSMAP 188 188C 238 in Dual frequency mode the unit transmits both 50kHz and 200kHz signals at the sa...

Страница 123: ...hs it appears the sh and tree are side by side as shown in Example 1 However when we look at Example 2 we see that the sh can be several feet from the tree It is important to remember that the sonar c...

Страница 124: ...ses the whiteline function to make this bottom layer information easier to distinguish With the GPSMAP 188 188C 238 active whiteline helps accentuate where strong signals are located which make bottom...

Страница 125: ...PSMAP 188 188C 238 to see through thermoclines and helps locate sh where they live and sh love thermoclines A rough de nition of a thermocline is a break in water where the water temperature changes f...

Страница 126: ...display with adjustable backlighting 234 x 320 pixels Case Fully gasketed high impact plastic alloy waterproof to IEC 529 IPX7 standards Temp Range 5 F to 158 F 15 C to 70 C Performance Receiver Diff...

Страница 127: ...m 2DRMS under the U S DOD imposed Selective Availability Program Power Source GPSMAP 188 238 8 35v DC GPSMAP 188C 10 35v DC Usage 188 238 8 watts max at 13 8v DC 188C 14 watts max at 13 8v DC Fuse GPS...

Страница 128: ...ine 31 Course Up Map Orientation 30 Cursor Movement 9 22 24 D Data Card Information 30 82 Data Card Installation 100 Data Entry 5 Data Fields 19 26 27 Data Transfer 87 90 Date Time 83 Datum Map 86 104...

Страница 129: ...g 24 25 Measure Distance Bearing 28 MENU Key 1 Messages 106 107 MOB Key 1 56 Moonrise Moonset 74 N NAV Key 1 12 53 56 58 59 82 Navaids 31 Navigation Terms 108 109 Nearest Find 60 66 NMEA Output Format...

Страница 130: ...tellelite Orientation 74 Software License Agreement v Software Version 85 Sonar Page 14 15 33 40 Sonar Understanding 111 115 Sonar Zoom 34 35 Specifications 116 117 Speed Distance and Elevation Units...

Страница 131: ...Water Type 39 Waypoint Lists 50 52 Waypoints Creating 10 13 24 37 44 47 80 Deleting 20 47 50 Editing 48 52 Moving 47 49 Re naming 48 Proximity 51 54 Reviewing 13 23 48 50 60 Underwater 37 Whiteline 14...

Страница 132: ...188Ccover indd 3 6 30 2003 3 24 52 PM...

Страница 133: ......

Страница 134: ...drangle Abbey Park Industrial Estate Romsey SO51 9DL U K Garmin Corporation No 68 Jangshu 2nd Road Shijr Taipei County Taiwan www garmin com Part Number 190 00216 10 Rev A For the latest free software...

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