Humminbird 581i DI Combo Operation Manual Download | Manualshive

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GPS & Navigation Terms:

Acquisition Time

The length of time that a GPS receiver typically takes to determine a

position from at least three satellites. Humminbird® GPS receivers provide very fast
acquisition times (under one minute), permitting users to get out on the water faster.

Altitude

The height measurement above sea level. Altitude is a measurement that can be

provided by GPS.

Bearing (BRG)

The direction to a destination waypoint measured in degrees from North

(i.e. 321°, where 000° is North, 090° East, 180° is South, 270° is West).

Chartplotter

A navigation device that shows Present Position on a Map, along with

Tracks, Waypoints, and Routes. All Chartplotters are also considered Trackplotters.

Cold Start

The procedure that a GPS receiver must perform when it does not have

historical information regarding its current location. This procedure typically lasts for several
minutes, and may be experienced upon first power up of the receiver, or if the receiver has
been moved a great distance.

Course Over Ground (COG)

The current direction the boat is traveling measured in

degrees from North (i.e. 321°, where 000° is North, 090° East, 180° is South, 270° is West).
When the Course Over Ground is equal to Bearing, the boat is said to be “On Course” and
will arrive at the destination in the most efficient manner. COG is often confused with
Heading. See

Heading

.

Cross Track Error (XTE)

The straight-line distance of the boat from the intended Track.

XTE measures how far the boat is off course and also triggers the Off Course Alarm. See

Track

.

Differential GPS (DGPS)

A system used to improve the position accuracy of the

Department of Defense GPS through the use of secondary “correction signals” broadcast
from ground stations around the coastal United States and on some inland waterways.
These correction signals are provided by the USCG and received by an auxiliary Differential
Beacon Receiver (DBR) that connects to the GPS receiver. The advent of WAAS has largely
negated the need for the added expense of a DBR in the United States.

Distance To Go

The straight-line distance between Present Position and the Destination

Waypoint. DTG and SOG (Speed Over Ground) are used to calculate Time To Go. See

Time

to Go

and

Speed Over Ground.

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Glossary - GPS & Navigation Terms

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Summary of Contents for 581i DI Combo

Page 1: ...581i DI Combo and 581i HD DI Combo Operations Manual 581i DI Combo and 581i HD DI Combo Operations Manual 531966 2EN_A ...

Page 2: ...The electronic chart in your Humminbird unit is an aid to navigation designed to facilitate the use of authorized government charts not to replace them Only official government charts and notices to mariners contain all of the current information needed for the safety of navigation and the captain is responsible for their prudent use WARNING Disassembly and repair of this electronic unit should on...

Page 3: ...re trademarked by or registered trademarks of Humminbird Baekmuk Batang Baekmuk Dotum Baekmuk Gulim and Baekmuk Headline are registered trademarks owned by Kim Jeong Hwan Navionics Gold HotMaps and HotMaps Premium are registered trademarks of Navionics 2012 Johnson Outdoors Marine Electronics Inc All rights reserved NOTE Some features discussed in this manual require a separate purchase and some f...

Page 4: ... Bottom View 10 What s on the Down Imaging Display 12 Understanding the Down Imaging Display 14 Interpreting the Display 14 Down Imaging Sensitivity 15 Freeze Frame and Active Cursor 15 Views 16 Sonar View 18 Sonar Zoom View 19 Split Sonar View 20 Down Imaging View 21 Down Sonar Combo View 22 Big Digits View 23 Bird s Eye View 24 Chart View 25 Combo View 27 Chart Down Combo View 28 View Orientatio...

Page 5: ...ling Grid 39 Routes 40 Tracks 42 Edit your Waypoints Routes Tracks and Groups 43 What s on the 500 Series Control Head 45 Key Functions 46 POWER LIGHT Key 46 VIEW Key 47 INFO Key 47 MENU Key 47 4 WAY Cursor Control Key 48 MARK Key 48 GOTO Key 49 ZOOM Key 49 EXIT Key 49 SD Memory Card Slot 50 Add Maps to Your Fishfinder 51 Import Navigation Data 51 Export Navigation Data 52 The Menu System 54 Start...

Page 6: ...ews only 66 Lower Range 66 Chart Speed 67 Bottom View 67 Bottom Lock Sonar Zoom View only 67 Bottom Range Sonar Zoom View only when Bottom Lock is On 68 Down Imaging X Press Menu Down Imaging Views only 69 Cancel Navigation only when navigating 70 Imaging Sensitivity 70 DI Enhance 70 Upper Range Advanced 71 Lower Range 72 Chart Speed 72 Imaging Palette 72 Navigation X Press Menu Navigation Views o...

Page 7: ...Remove Grid only if Grid is Active 76 Waypoint Name Most recently created waypoint 77 Alarms Menu Tab 78 Depth Alarm 79 Fish ID Alarm 79 Low Battery Alarm 79 Temp Alarm 80 Off Course Alarm 80 Arrival Alarm 81 Drift Alarm 81 Alarm Tone 81 Timer Setup 82 Start Timer 82 Stop Timer with the Timer running 82 Sonar Menu Tab 83 Beam Select 84 Imaging Frequency Down Imaging Views only 85 Surface Clutter 8...

Page 8: ... Tab 93 Current Track 94 Waypoints Routes Tracks Waypoint Management Dialog Box 94 Waypoint Settings 95 Saved Tracks Defaults 95 Chart Orientation 96 Casting Rings Advanced 96 Lat Lon Grid 96 Chart Select SD card in slot 96 North Reference 96 Waypoint Proximity Flags Advanced 97 Waypoint Decluttering Advanced 97 Grid Rotation 98 Trackpoint Interval 98 Track Min Distance Advanced 98 Map Datum Advan...

Page 9: ... 107 Restore Defaults 107 Format Nav Directories 107 Select Readouts Advanced Sonar View and Down Imaging View only 108 Depth Offset Advanced 109 Temp Offset Advanced with Temp Speed only 109 Speed Calibration Advanced with Temp Speed only 109 Local Time Zone Advanced 109 Daylight Saving Time Advanced 110 Position Format Advanced 110 Time Format Advanced International only 110 Date Format Advanced...

Page 10: ...zed international distributors please visit our Web site at humminbird com or contact our Customer Resource Center at 334 687 6613 NOTE Entries in this Table of Contents which list with Temp Speed only require the purchase of separate accessories You can visit our Web site at humminbird com to order these accessories online or contact our Customer Resource Center at 1 800 633 1468 NOTE Some featur...

Page 11: ... long to select a Start Up Option the system will default to whichever menu is already highlighted You can also select Simulator to learn how to use your control head and save settings in advance for later use 4 Quick Setup If this is the first time the unit has been powered on after installation or after restoring defaults the Quick Setup dialog box will display on the screen Use the 4 WAY Cursor...

Page 12: ...n size and composition of an object Sonar is very fast A sound wave can travel from the surface to a depth of 240 ft 70 m and back again in less than 1 4 of a second It is unlikely that your boat can outrun this sonar signal SONAR is an acronym for SOund and NAvigation Ranging Sonar uses precision sound pulses or pings which are emitted into the water in a teardrop shaped beam The sound pulses ech...

Page 13: ...lance between depth performance and resolution Low frequencies 83 kHz are typically used to achieve greater depth capability The power output is the amount of energy generated by the sonar transmitter It is commonly measured using two methods Root Mean Square RMS measures power output over the entire transmit cycle Peak to Peak measures power output at the highest points The benefits of increased ...

Page 14: ...Select 800 kHz for the sharpest image See Down Imaging X Press Menu Imaging Frequency for more information The transducer also uses conical beams to provide data in traditional 2D format see What s on the Sonar Display Select 455 kHz for a narrowly focused 16 center beam or select 200 kHz for a wider 25 beam see Sonar Menu Tab Beam Select Depth capability is affected by such factors as boat speed ...

Page 15: ...litary use however civilians may also take advantage of its highly accurate position capabilities typically within 10 meters depending on conditions This means that 95 of the time the GPS receiver will read a location within 10 meters of your actual position Your GPS Receiver also uses information from WAAS the Wide Area Augmentation System EGNOS the European Geostationary Navigation Overlay Servi...

Page 16: ...ver Second Sonar Return When the sonar signal bouncesbetweenthebottomandthesurfaceofthe water and back again Use the appearance of the second return to determine bottom hardness Hard bottomswillshowastrongsecondreturn whilesoft bottomswillshowaveryweakoneornoneatall Cursor Dialog Box Indicates cursor depth on the display and the depth of the bottom directly below the cursor The Latitude and Longit...

Page 17: ...rsor Available in Freeze Frame and can be positioned in the Sonar View to provide depthofasonarreturnandbottomdepthbelow the cursor Hollow Fish Symbol See Fish ID Shaded Fish Symbol See Fish ID Fish The Fishfinder displays fish as arches and or fish icons and can be set to alarm when a fish of a certain size is detected When a target is detected a Fish ID symbol appears on the display with the dep...

Page 18: ...ars on the right side of the display in the Sonar View only The RTS Window updates at the fastest rate possible for depth conditions and shows only the returns from the bottom structure and fish that are within the transducer beam The RTS Window plots the depth and intensity of a sonar return see Sonar Menu Tab RTS Window The Narrow RTS Window indicates the sonar intensity through the use of grays...

Page 19: ...r Freeze Frame Active Cursor Press any arrow on the 4 WAY Cursor Control key and the screen will freeze and a cursor will be displayed Use the 4 WAY Cursor Control key to move the cursor over a sonar return and the depth of the sonar return will be displayed at the bottom of the screen in the cursor information box The RTS Window continues to update in Freeze Frame To return to a scrolling display...

Page 20: ...vegetation and small fish The shades used to represent high medium to low intensity returns are determined by the setting you choose in the Bottom View menu option See Sonar X Press Menu to set the Bottom View Sonar View Bottom View set to Inverse default setting Strong Returns possibly rocks tree limbs or other structure RTS Window Sonar History Historical Returns scroll left across the view Weak...

Page 21: ...returns as dark pixels This has the benefit of ensuring that strong returns will be clearly visible on the display WhiteLine highlights the strongest sonar returns in white resulting in a distinctive outline This has the benefit of clearly defining the bottom on the display Black Bottom Black displays all pixels below the bottom contour as black regardless of signal strength This has the benefit o...

Page 22: ...that list with Temp Speed are available if the accessory is connected Depth water depth can be set to alarm when the water becomes too shallow Temperature Water surface temperature Speed IfaTemp Speedaccessoryisconnected the Fishfinder can display the speed of the boat and can keep a Triplog of nautical or statute miles traveled Topography Changes The light part of the display shows where the beam...

Page 23: ... Use shadows to help you see the image in 3 dimensions oriented in space You can gain insight into the actual shape of an object or the depth to which it has sunk into the bottom through shadows on the display Objects standing on the bottom cast a sonar shadow The longer the shadow the taller the object Fish also cast shadows You can use the shadow to interpret how close the fish is to the bottom ...

Page 24: ... wide side to side but very thin front to back Use the light and dark parts of the display to interpret the objects under your boat as follows Dark shades represent soft returns mud sand or descending terrain Light shades represent denser terrain timber rocks or rising terrain A very hard bottom may appear as white on the display White Streaks or Clouds may represent fish on the display Shadows ar...

Page 25: ...nsitivity to eliminate the clutter from the display that is sometimes present in murky or muddy water See Down Imaging X Press Menu Imaging Sensitivity for more information Freeze Frame and Active Cursor Freeze Frame and Active Cursor Press any arrow on the 4 WAY Cursor Control key and the screen will freeze and a cursor will be displayed Use the 4 WAY Cursor Control key to move the cursor over a ...

Page 26: ...When you press the VIEW key repeatedly the display cycles through the available views on your screen When you press the EXIT key the display cycles through the available views in reverse order Customize You can display or hide any view to suit your fishing preferences See the following pages for more information about each View NOTE When you change any menu settings that affect the sonar the view ...

Page 27: ...hether or not you are navigating The digital readouts on the Sonar View can be customized See Setup Menu Tab Select Readouts for more information 1 Press the MENU key twice to access the tabbed Main Menu then press the RIGHT Cursor key until the Setup tab is selected 2 Press the DOWN key to highlight Select Readouts and press the RIGHT Cursor key to access the Select Readouts submenu NOTE If the S...

Page 28: ...hange based on the Select Readouts settings or the optional purchase accessories attached see Setup Menu Tab Select Readouts Freeze Frame Use the 4 WAY Cursor Control key to freeze the display and move the cursor over a sonar return The depth of the sonar return will be displayed at the bottom of the screen in the cursor information box NOTE If the Depth number is flashing it means that the unit i...

Page 29: ...ludes the Zoom Preview Box which shows where the zoomed view is in relation to the full range view The Upper and Lower Depth Range numbers indicate the high and low range of the water which is being viewed Freeze Frame Use the 4 WAY Cursor Control key to freeze the display and move the cursor over a sonar return The depth of the sonar return will be displayed at the bottom of the screen in the cur...

Page 30: ...he right side of the screen Depth is displayed in the upper left hand corner The Digital Readouts in the Split Sonar View cannot be customized therefore information such as water temperature and voltage are unavailable in the Split Sonar View Freeze Frame Use the 4 WAY Cursor Control key to freeze the display and move the cursor over a sonar return The depth of the sonar return will be displayed a...

Page 31: ...n the 4 WAY Cursor Control key and the Down Imaging View will freeze and a cursor will appear on the screen Use the 4 WAY Cursor Control key to move the cursor over a sonar return and observe the following The depth of the sonar return at the cursor location will be displayed in the cursor information box Zoom Press the ZOOM key and a zoom box will appear and magnify the area you choose providing ...

Page 32: ...ling speed and the display color palette see Down Imaging X Press Menu and Sonar X Press Menu Freeze Frame Press any arrow on the 4 WAY Cursor Control key and the view will freeze and a cursor will appear on both views on the screen Use the 4 WAY Cursor Control key to move the cursor over a sonar return and the depth of the sonar return will be displayed in the cursor dialog box Down Sonar Combo V...

Page 33: ...cted to the Fishfinder NOTE The digital readouts in the Big Digits View cannot be customized The Triplog shows distance traveled average speed and time elapsed since the Triplog was last reset Big Digits View Depth Temperature Speed Timer shows the time elapsed since Triplog was last reset Distance is the distance traveled since the Triplog was last reset Voltage displays the battery voltage Avera...

Page 34: ...ou can look off to the sides or even behind the boat Press the RIGHT or LEFT Cursor keys to turn the eye point right or left Press the UP Cursor key to move the eye point forward and press the DOWN Cursor key to move the eye point backward Press the EXIT key to move the eye point back to its original position behind and above the boat Bird s Eye View Depth Water Surface Temperature Land Contour Bo...

Page 35: ...waypoints and the current route when navigating are overlaid on the chart Shift Pan Use the 4 WAY Cursor Control key to shift pan the chart to another area Zoom Press the ZOOM keys to zoom in and out Info Press the INFO key to get information on the chart objects near the cursor Depth Map Scale Speed of Boat Water Surface Temperature Chart View without Active Cursor shown with Optional Purchase Na...

Page 36: ...e Cursor shown with Optional Purchase Navionics Cartography Depth Map Scale Distance to the Cursor and Bearing to Cursor Cartography Active Cursor Latitude and Longitude Position of Cursor Bearing of Boat with Respect to True North ...

Page 37: ...rsor Control key to shift pan the chart to another area You can mark waypoints start navigation review position information or magnify the view See Chart View and Introduction to Navigation for more information Sonar Window To change the width of the Sonar Window press the MENU key once and select Sonar Window from the X Press Menu Press the RIGHT or LEFT Cursor keys to select a setting Combo View...

Page 38: ...Window Use the 4 WAY Cursor Control key to shift pan the chart to another area You can mark waypoints start navigation review position information or magnify the view See Chart View and Introduction to Navigation for more information Down Imaging Window To change the width of the Down Imaging Window press the MENU key once and select Sonar Window from the X Press Menu Press the RIGHT or LEFT Curso...

Page 39: ... so that the vessel always points up on the view Course Up During navigation the projected course is shown at the top of the view Objects ahead of the boat are drawn above the boat When the boat is not navigating the course up reference is provided by the COG course over ground calculation Also to display the north icon on the view see Navigation Menu Tab North Up Indicator North Up Icon If it is ...

Page 40: ...splay If you zoom in beyond the available chart data the display will go into Overzoom mode whereby the last available chart data is amplified to reflect the level selected If you zoom in so far that no cartography is available a lat long grid will be drawn instead Zooming is also influenced by the Auto Zoom and Auto Range settings See Navigation Menu Tab Auto Zoom and Auto Range for more informat...

Page 41: ...isplayed This includes the position of the station and the times of the high and low tides for today s date A tide graph is also displayed showing the rise and fall of the tides for the 24 hour time period encompassing the date You can change the date to look at tide information before or after the date displayed by pressing the LEFT or RIGHT Cursor key respectively Press the EXIT key to remove th...

Page 42: ...t your navigation data and organize it too This section will get you started See your Humminbird Waypoint Management Guide for complete details Waypoints Routes and Tracks Waypoints are stored positions that allow you to mark areas of interest or navigation points Your Fishfinder can store up to 2 750 waypoints Waypoints Routes and Tracks Current Route Leg XTE Cross Track Error Distance of Boat fr...

Page 43: ...ys look out for obstacles not shown on the chart A Route Leg is the path between each waypoint in a route Tracks consist of detailed position history and are displayed as a breadcrumb trail of trackpoints The Current Track shows the position history since the unit was powered up You can clear the Current Track or save it at any time Your Fishfinder can store up to 50 saved tracks each containing 2...

Page 44: ... your Humminbird control head Open the Waypoint Management Dialog Box 1 Press the MENU key twice to open the Main Menu 2 Press the RIGHT Cursor key until the Navigation Menu Tab is selected 3 Press the DOWN Cursor key to choose Waypoints Routes Tracks Press the RIGHT Cursor key to open the Waypoint Management dialog box Opening the Waypoint Management Dialog Box ...

Page 45: ...enu press the RIGHT Cursor key To move to the higher level group or the higher level directory press the LEFT Cursor key As you scroll through the Waypoint Management dialog box press the EXIT key to select the Options menu quickly Press the EXIT key twice to close the dialog box Sort By Select Sort By and press the RIGHT Cursor key repeatedly to choose a sorting option for the waypoints routes tr...

Page 46: ...s routes and tracks will be saved In this illustration Home is the default group This field also changes to display instructions Directory Shows the directory structure and the currently selected group Arrows When arrows are displayed on a menu option additional information or submenus are available If the arrow points to the right press the RIGHT Cursor key If the arrow points to the left press t...

Page 47: ...aypoint will also record the depth at that location Create a New Waypoint To create a waypoint that is NOT your current position open the Waypoint Management dialog box Select Options New New Waypoint Use the 4 WAY Cursor Control key to set the available fields See Edit your Waypoints Routes Tracks and Groups for details Delete a Waypoint Open the Waypoint Management dialog box Select a Waypoint a...

Page 48: ...elect a Waypoint and press the RIGHT Cursor key to open the Waypoint submenu Select Go To and press the RIGHT Cursor key Skip a Waypoint From the Navigation X Press Menu select Skip Next Waypoint and press the RIGHT Cursor key If there is not another waypoint to skip to navigation will be canceled Cancel Navigation From the Navigation X Press Menu select Cancel Navigation and press the RIGHT Curso...

Page 49: ...nd select Grid Press the RIGHT Cursor key The grid can also be rotated to any heading by adjusting the Grid Rotation setting on the Navigation Main Menu Remove Target or Trolling Grid Press the MENU key once and choose Remove Target or Remove Grid from the Navigation X Press Menu and press the RIGHT Cursor key NOTE Only one waypoint can have either a target or a grid applied to it at one time If y...

Page 50: ... and Groups for details Plan Route Select Plan Route and press the RIGHT Cursor key The New Route dialog box closes so that you can select waypoints from the Waypoint Management dialog box To add a selected waypoint to the route press the RIGHT Cursor key Repeat as needed Select Save and press the RIGHT Cursor key Adding Waypoints to a Route A confirmation displays each time you add a waypoint to ...

Page 51: ...t Open and then choose one of the following options Select Reverse and press the RIGHT Cursor key This will quickly reverse the order of the route Press the EXIT key to select Save Press the RIGHT Cursor key to confirm your changes OR Choose a Waypoint in a route and press the RIGHT Cursor key Select Reorder and press the RIGHT Cursor key To move the waypoint up or down in the route order press th...

Page 52: ...racking NOTE When you save a track a name is automatically assigned The track name consists of a date time stamp but can be re named later see Edit your Waypoints Routes Tracks and Groups Clear the Current Track From the Navigation X Press Menu select Clear Current Track and press the RIGHT Cursor key The track will be removed from the display and permanently deleted Hide or Display a Saved Track ...

Page 53: ... group The available settings will depend on the type of item you are editing NOTE The Edit Waypoint dialog box is also available when you select a waypoint from the Navigation X Press Menu NOTE See your Humminbird Waypoint Management Guide for more information about groups and the other great features of the Waypoint Management dialog box Visible on Chart View Hidden on Chart View Editing a Waypo...

Page 54: ...etters are available as well as digits 0 9 and some punctuation symbols Icon Category Press the UP or DOWN Cursor keys to scroll through the available categories Select All to view all available icons All Geometry Alerts Supplies Navigation Recreation Fish Environment Icon Press the UP or DOWN Cursor keys to scroll through the available icons used to represent the waypoint in Chart View The availa...

Page 55: ... the display Refer to the following illustration and see Key Functions for more information Your control head will have one of the INFO keys shown here Both keys function in the same way Screen MENU key 1 7 MARK key 8 INFO key EXIT key 2 9 GOTO key 10 3 4 5 6 7 8 9 10 1 POWER LIGHT key 11 SD Card slot cover 12 VIEW key ZOOM key 3 5 4 WAY Cursor Control key LEFT RIGHT UP or DOWN Cursor keys 6 ZOOM ...

Page 56: ...ill appear to indicate how many seconds there are until shutdown occurs To ensure that shutdown occurs properly and any menu settings will be saved your Fishfinder should always be turned off using the POWER LIGHT key Adjust the Backlight or the Display Contrast Press the POWER LIGHT key to access the Light and Contrast submenu Use the 4 WAY Cursor Control key to select Light or Contrast and then ...

Page 57: ... the Chart Info submenu will be displayed See Views Viewing Cartography for more information NOTE Your control head will have one of the keys shown here Both keys function in the same way MENU Key The MENU key is used to access the menu system See The Menu System for more information Start Up Options Menu Press the MENU key during the power up sequence to view the Start Up Options menu X Press Men...

Page 58: ...epth of the location you choose Active Cursor Press any arrow on the 4 WAY Cursor Control key and the active cursor will appear on the screen In any Chart View the 4 WAY Cursor Control key also pans the charts and highlights decluttered waypoint icons Bird s Eye View The 4 WAY Cursor Control key controls the motion of the eye point MARK Key Press the MARK key while in any view to mark the position...

Page 59: ...oom key to change the scale of the view to appear closer or farther away EXIT Key The EXIT key has multiple functions which depend on the situation If an alarm is sounding press the EXIT key to cancel the alarm If a menu tab is selected press the EXIT key to exit the menu mode and return to the view If a menu is active press the EXIT key to return to the previous level in the menu system From any ...

Page 60: ...n the card until it clicks into place 3 Close the slot cover and turn the knob just 1 4 of a turn to close Do NOT overtighten as this will not improve water resistance and may damage the cover 4 To Remove Press the SD memory card into the slot and then release The card will eject and you can then pull the card from the slot NOTE Do not leave the SD slot cover open The slot cover should always be c...

Page 61: ...ation Menu Tab Chart Detail Level Map Borders Use the 4 WAY Cursor Control key to move the active cursor within a map border and press the ZOOM key to view the different map see Navigation Menu Tab Map Borders Menu Options The Navigation Menu Tab will change to display menu options that correspond with the active chart see Navigation Menu Tab Import Navigation Data Review the following information...

Page 62: ... until the Navigation tab is selected Select Waypoints Routes Tracks Press the RIGHT Cursor key 3 Select Options Select All and Export 4 Follow the on screen instructions to confirm or cancel the export WARNING DO NOT import navigation data from unknown sources into your Humminbird unit without first converting the data to the correct format using HumminbirdPC Importing corrupted data can cause th...

Page 63: ...WN Cursor keys to scroll through the waypoints routes tracks and groups Press the RIGHT Cursor key to select an item Repeat as needed 5 Confirm Export When you are finished selecting items press the EXIT key to select Export Selected Press the RIGHT Cursor key and follow the on screen instructions to confirm or cancel the export NOTE If an SD memory card is not installed an error message will be d...

Page 64: ...imulator and System Status X Press Menu The X Press Menu provides a shortcut to the most frequently used settings and the options on the X Press Menu correspond with the current view Main Menu The Main Menu is a standard set of menu settings which are organized under the following tabbed headings Alarms Sonar Navigation Setup and Views NOTE The X Press Menu s and the Main Menu options can also be ...

Page 65: ...modes described on the following pages Also see Power On for additional information Normal Use Normal for on the water operation with a transducer connected If a functioning transducer is connected Normal operation will be selected automatically at power up and your Fishfinder can be used on the water To exit Normal operation power off your Fishfinder ...

Page 66: ...ater use NOTE It is important to select Simulator manually from the Start Up Options Menu as opposed to letting the Fishfinder enter Simulator automatically as it will if a transducer is not connected and you do nothing during power up A message will appear often on the display to indicate Simulator mode To exit Simulator power off your Fishfinder System Status Use System Status to view system con...

Page 67: ...r Printed Circuit Board PCB serial number software revision total hours of operation and the input voltage Accessory Test lists the accessories connected to the system NOTE The speed accessory will be detected only if the paddlewheel has moved since your Fishfinder was powered up Accessory Test Screen Self Test Screen ...

Page 68: ...being used This view also reports the current position local time and date and other numeric information The current GPS Fix Type is reported as No Fix 2D Fix 3D Fix or Enhanced An Enhanced fix has been augmented using information from WAAS EGNOS or MSAS A 3D or Enhanced Fix is required for navigation HDOP the Horizontal Dilution of Precision is a GPS system parameter which depends on the current ...

Page 69: ...IGHT or LEFT Cursor keys to change the menu setting NOTE The X Press Menu will collapse temporarily and the screen will update if it is affected by your menu setting change which allows you to see the effects of your change immediately 3 Reactivate the X Press Menu by pressing the UP or DOWN Cursor keys Total Screen Update When you change any menu settings that affect the current view the view wil...

Page 70: ...eys to highlight a menu tab 3 Press the DOWN or UP Cursor keys to select a specific menu option under that tab 4 Press the RIGHT or LEFT Cursor keys again to change a menu setting A down arrow at the bottom of a menu means that you can scroll to additional menu options using the DOWN Cursor key A right or left arrow on a menu option means that you can use the RIGHT or LEFT Cursor keys to make chan...

Page 71: ...or see more information If you press MENU or EXIT to leave the Main Menu and then return to the Main Menu at a later time the menu will open to the same tab as the last time the Main Menu was displayed Note for all Menu Settings The settings in all menus are adjusted in the same way Simply use the 4 WAY Cursor Control key to highlight a menu option and then change the settings or activate the opti...

Page 72: ...ange the User Mode setting 1 Press the MENU key twice to access the Main Menu 2 Press the RIGHT Cursor key until the Setup tab is selected 3 Press the DOWN Cursor key to highlight User Mode on the Setup main menu 4 Press the LEFT or RIGHT Cursor keys to change the User Mode setting Normal Advanced Default Normal NOTE Any changes made while in Advanced Mode will remain in effect after you switch ba...

Page 73: ...63 Main Menu Sonar Tab Normal Mode Sonar Tab Advanced Mode ...

Page 74: ...hortcut to your most frequently used settings Press the MENU key once while in any of the Sonar Views to access the Sonar X Press Menu NOTE Menu options can be expanded or simplified by setting the Fishfinder User Mode to Advanced or Normal See Main Menu User Mode for details Sonar X Press Menu ...

Page 75: ...t the sensitivity of all sonar frequencies When operating in very clear water or greater depths increase the sensitivity to see weaker returns that may be of interest If the sensitivity is adjusted too high the display may become too cluttered Decrease the sensitivity to eliminate the clutter from the display that is sometimes present in murky or muddy water If Sensitivity is adjusted too low the ...

Page 76: ...r right corner of the screen to indicate the unit is in Manual mode Adjust the Upper and Lower Range together to view a specific depth range especially when looking for fish or bottom structure NOTE A minimum distance of 10 feet will be maintained between the Upper and Lower Range regardless of the manual settings entered For example if you are fishing in 60 feet of water but are only interested i...

Page 77: ...ret Regardless of the Chart Speed setting the RTS Window will update at the maximum rate possible for the depth conditions Bottom View Settings Inverse Structure ID WhiteLine Bottom Black Default Inverse Bottom View selects the method used to represent bottom and structure on the display See What s on the Sonar Display Sonar Returns and Bottom View for more information Bottom Lock Sonar Zoom View ...

Page 78: ...ontrol how much of the water column measured up from the bottom is shown in the Sonar Zoom View Choose a small value to see low lying bottom structure or details of the bottom return Choose a larger value to see large structure in deeper water NOTE It is possible to set the Bottom Range to be greater than the depth In this case you may see surface clutter in a wavy band that mirrors changes in the...

Page 79: ...vides a shortcut to your most frequently used settings Press the MENU key once while in any of the Down Imaging Views to access the Down Imaging X Press Menu NOTE Menu options can be expanded or simplified by setting the User Mode to Advanced or Normal See Main Menu User Mode for details Down Imaging X Press Menu ...

Page 80: ...er depths A high imaging sensitivity setting shows more sonar returns from small baitfish and suspended debris in the water however if the sensitivity is adjusted too high the display may become too cluttered Decrease the Imaging Sensitivity to eliminate the clutter from the display that is sometimes present in murky or muddy water If the sensitivity is adjusted too low the display may not show ma...

Page 81: ... Imaging data to provide greater definition 1 to 20 Default 10 Sharpness Filters the view and sharpens the edges of the Down Imaging data Low L Medium M High H Default Off Upper Range Advanced Settings 0 to 790 feet or 0 to 257 meters International models only Default 0 ft Upper Range sets the shallowest depth range that will be displayed on the Down Imaging Views Upper Range is often used with Lo...

Page 82: ...s 1 9 Ultra where 1 Slow 9 Fast Ultra Fastest Default 5 Chart Speed determines the speed at which the sonar information moves across the display and consequently the amount of detail shown A faster speed shows more information and is preferred by most anglers however the sonar information moves across the display quickly A slower speed keeps the information on the display longer but the bottom and...

Page 83: ...hart or Combo View to access the Navigation X Press Menu NOTE Menu options will vary depending on system settings such as whether you are currently navigating NOTE Menu options can be expanded or simplified by setting the User Mode to Advanced or Normal See Main Menu User Mode for details See Introduction to Navigation and the Humminbird Waypoint Management Guide for more information Navigation X ...

Page 84: ...ctive cursor on a waypoint Settings Edit Delete Target Grid Waypoint Name allows you to view the Waypoints submenu for the waypoint under your cursor You can move the cursor onto an existing waypoint and press the MENU key once or use Cursor to Waypoint to select a waypoint from the saved waypoints list NOTE See Introduction to Navigation and the Humminbird Waypoint Management Guide for more infor...

Page 85: ...onds press the Zoom keys NOTE See Navigation Menu Tab Chart Detail Level for more information Save Current Track Settings Follow screen instructions to activate Save Current Track allows you to save the current track on the display After the current track is saved a new current track is started Save Current Track appears on the Navigation X Press Menu after navigation is stopped Clear Current Trac...

Page 86: ...pdate the unit s course calculations from the current boat position instead of from the previous waypoint in the route Remove Target only if a Target is Active Settings Press the RIGHT Cursor key to activate Remove Target removes the waypoint target from the display This menu option will only appear when a target has already been applied to a waypoint NOTE See Introduction to Navigation Add a Wayp...

Page 87: ...n to appear NOTE See Introduction to Navigation and the Humminbird Waypoint Management Guide for more information The Waypoint Submenu contains the following menu options Edit opens the Edit Waypoint dialog box so that you can edit the selected waypoint See Introduction to Navigation and the Humminbird Waypoint Management Guide for more information Delete allows you to delete the waypoint Go To st...

Page 88: ...ce to access the Main Menu The Alarms tab will be the default selection NOTE When an alarm is triggered you can silence it by pressing any key The alarm will be silenced and will not be triggered again until a new instance of the alarm condition is detected Alarms Menu Tab ...

Page 89: ... Fish ID alarm will sound when a large sized fish is detected Low Battery Alarm Settings Off 8 5V 13 5V Default Off Low Battery Alarm sounds when the input battery voltage is equal to or less than the menu setting The battery alarm will only sound for the battery that is connected to the Fishfinder The Low Battery Alarm should be set to warn you when the battery voltage drops below the safety marg...

Page 90: ... 3000 feet 10 to 1000 meters International Models only Default 300 ft 100 m Off Course Alarm allows you to set how far the boat is allowed to move off course before the Off Course Alarm will sound during navigation Off Course Limits Arrival Alarm Circle For example if the Temp Alarm is set to 58 degrees Fahrenheit and the water temperature falls from 60 degrees to 58 degrees the Temp Alarm will so...

Page 91: ...tination waypoint before the Arrival Alarm will sound Drift Alarm Settings Off 25 to 3000 feet 10 to 1000 meters International Models only Default Off Drift Alarm allows you to set the size of a perimeter around the boat s anchored position If the anchored boat drifts outside of that perimeter the Drift Alarm will sound Alarm Tone Settings High Medium Low Default Medium Alarm Tone selects the pitc...

Page 92: ...t and press the RIGHT Cursor key Save and Close To save your settings and start the Timer at a later time select Save and Close and press the RIGHT Cursor key Also see Start Timer Digital Readout To display the Timer on screen as it counts down see Views To Change the Digital Readouts Start Timer Settings Press the RIGHT Cursor key to start the Timer Start Timer allows you to start the Timer using...

Page 93: ...ice to access the Main Menu and then press the RIGHT Cursor key until the Sonar tab is selected NOTE Menu options can be expanded or simplified by setting the User Mode to Advanced or Normal See Main Menu User Mode for details Sonar Menu Tab Advanced Mode ...

Page 94: ...reen The Down Imaging models allow you to choose 200 kHz or 455 kHz for conical sonar coverage in the traditional sonar views When set to 200 kHz only the returns from the 200 kHz 25 beam will be displayed When set to 455 kHz only the returns from the 455 kHz 16 narrow beam will be displayed 75 Degree Total Coverage 16 25 455kHz 200kHz 75 455kHz 45 800kHz ...

Page 95: ...Hz Imaging Frequency allows you to select which frequency to apply to the Down Imaging beams 455 kHz or 800 kHz For the best overall image quality and depth select 455 kHz For the sharpest image but limited depth capability select 800 kHz 75 Degree Total Coverage 16 25 455kHz 200kHz 75 455kHz 45 800kHz ...

Page 96: ...sonar returns on the display When Max Mode is selected you will see the maximum sonar information available within the transducer beam so more fish arches and better jig tracking are shown Choose Clear Mode to see less clutter and more fish size accuracy on the display When Clear Mode is selected the clutter is filtered and sonar returns are interpreted to provide more details about the objects wi...

Page 97: ...ish symbols and targets detected in the 200 kHz conical beam are represented as shaded fish symbols When Fish ID is turned off the Fishfinder shows only the raw sonar returns on the display These returns will often result in arches forming on the display indicating potential targets Due to the transducer beam angle the distance to a fish decreases as the fish moves into the beam and then increases...

Page 98: ...y of the Fishfinder to identify sonar returns as fish Real Time Sonar RTS Window Settings Wide Narrow Off Default Narrow RTS Window sets the RTS Window to either Wide or Narrow or turns it off in the Sonar View The RTS Window always updates at the fastest rate possible and only displays returns that are within the transducer beam See What s on the Sonar Display for more information NOTE The Wide R...

Page 99: ...ed along the depth scale You can turn Depth Lines On or Off Noise Filter Advanced Settings Off Low Medium High 1 High 2 High 3 Default Low Noise Filter adjusts the sonar Noise Filter to limit interference on the display from sources such as your boat engine turbulence or other sonar devices The Off setting removes all filtering Low Medium and High1 High 2 High 3 settings add progressive filtering ...

Page 100: ...eeper than the Max Depth setting the digital depth readout will flash indicating that the Fishfinder cannot locate the bottom Water Type Advanced Settings Fresh Salt shallow Salt deep Default Fresh Water Type configures your unit for operation in fresh or salt water In salt water you can also choose the shallow or deep setting Water Type affects the accuracy of deep water depth readings In salt wa...

Page 101: ... depth source to 2D Element in order to display depth in the digital readout window The 2D Element setting should not be used with a Down Imaging transducer NOTE Visit our Web site at humminbird com to determine which accessory transducers are compatible with your Humminbird Fishing System or Contact our Customer Resource Center NOTE When Digital Depth Source is set to 2D Element the DI Only setti...

Page 102: ...Digital Depth Source for more information NOTE See How Sonar Works Down Imaging Sonar for more information Imaging Palette Down Imaging Views only Settings Dark Light Inverse Default Dark Imaging Palette allows you to select which monochrome palette you would like to use for the Down Imaging display 75 Degree Total Coverage 16 75 25 455kHz 200kHz 455kHz 45 800kHz Down Imaging beams 2D Sonar beams ...

Page 103: ... the Navigation tab is selected NOTE Menu options will vary depending on system settings such as whether you are currently navigating NOTE Menu options can be expanded or simplified by setting the User Mode to Advanced or Normal See Main Menu User Mode for details Navigation Menu Tab Navigation Menu Tab 93 ...

Page 104: ... current track and the unit will not save trackpoints To resume saving the track select Current Track Start Tracking Waypoints Routes Tracks Waypoint Management Dialog Box Settings Press the RIGHT Cursor key to open the dialog box Waypoints Routes Tracks allows you to open the Waypoint Management dialog box Use the Waypoint Management dialog box to create new waypoints and routes and organize your...

Page 105: ...all new waypoints To see the most icon choices set the Icon Category to All New Waypoint Icon Select Default and the system will automatically apply your settings to new waypoints If you choose Select each time you mark a waypoint by pressing the MARK key you will be prompted to change the waypoint icon and category To accept the current settings press the MARK key again Saved Tracks Defaults Sett...

Page 106: ...displayed from the waypoint Select Off to hide the Casting Rings NOTE Casting Rings are not applied to decluttered waypoints see Navigation Menu Tab Waypoint Decluttering Lat Lon Grid Settings Hidden Visible Default Hidden Lat Lon Grid allows you to display or hide a grid showing latitude and longitude lines Chart Select SD card in card slot Settings Various Default Auto Chart Select allows you to...

Page 107: ...if the chart range is less than 5 sm and the boat is traveling less than 15 mph Waypoint Decluttering Advanced Settings On Off Default On Waypoint Decluttering allows you to set the declutter feature On or Off When two or more waypoints overlap or are displayed close together on a chart view the screen will automatically declutter waypoint names will shorten and the waypoint icons will change into...

Page 108: ...tend back further in time but will be less detailed Trackpoint Interval works in conjunction with Track Min Distance Both conditions must be met before a trackpoint is added to the current track During slow travel or drift setting both Trackpoint Interval and Track Min Distance to small values will allow you to increase the track resolution Track Min Distance Advanced Settings 1 to 300 feet or 1 t...

Page 109: ...efore you began this procedure an error message will appear Exit the menu set the cursor then try again Set Map Offset Advanced Settings Follow screen instructions to activate Set Map Offset allows you to change the map offset used by your Fishfinder Press the 4 WAY Cursor Control key to activate the cursor and move it to the location where the Map Offset will be applied Then confirm the map offse...

Page 110: ...ntation and the data source change To set the Chart Orientation see Navigation Menu Tab Also see View Orientation Course Projection Line Settings Hidden Standard Single Vector COG SOG Default Standard Course Projection Line displays an arrow or line extending from the bow of the boat that projects your current course and shows where the boat will go if you continue on your present course You can c...

Page 111: ... All shows roads buildings railways and other notations in addition to the Basic Navigation and Underwater information Custom Advanced user mode allows you to display or hide chart layers on the Navigation Views The available chart layers include Navigable Canals Boundaries Restricted Areas Coastline Bridges etc To customize the chart layers 1 Select Chart Detail Level from the Navigation Menu Tab...

Page 112: ... lines of a Map Border indicate an area which contains a different map Map Borders shown with optional purchase Navionics Cartography with Custom Chart Layers Anchorage Area 1 Drying Lines 2 Navaids 3 Map Borders Bridge wavy lines Roads 4 5 6 Restricted Area 7 Other Points of Interest POI 8 Coastline 9 1 2 3 4 5 7 8 9 6 Navigation Menu Tab ...

Page 113: ... use the ZOOM keys to see more or less of the view and Auto Zoom will resume after 20 seconds To use only the ZOOM keys to adjust the chart range turn off Auto Zoom See Viewing Cartography for more information NOTE The Auto Zoom setting does not apply to the Bird s Eye View Auto Range Advanced Settings On Off Default Off Auto Range when turned on sets the chart scale to the lowest range so that on...

Page 114: ...ter of the Chart View When the boat is moving at or above the Offset Speed setting the boat icon will move to the edge of the view so that more of the Chart View is shown on screen Offset Speed with Vessel Offset turned on Settings 5 to 60 mph 5 to 50 kts or 8 to 95 kph International Models only Default 5 mph 5 kts 8 kph Offset Speed allows you to see more of the Chart View when the boat is travel...

Page 115: ...ew press the MENU key twice to access the tabbed Main Menu then press the RIGHT Cursor key until the Setup tab is selected NOTE Menu options will vary depending on which accessories are attached to the unit NOTE Menu options can be expanded or simplified by setting the User Mode to Advanced or Normal See Main Menu User Mode for details Setup Menu Tab ...

Page 116: ...sure for all distance related readouts and will appear in the menu if a Temp Speed Accessory is connected and the paddlewheel has moved at least once or if the GPS Receiver is connected Units Speed Settings Domestic Models mph kts International Models kph Default mph kph Units Speed selects the units of measure for speed related readouts and will appear in the menu if a Temp Speed Accessory is con...

Page 117: ...faults resets ALL menu settings to their factory defaults Format Nav Directories Settings Press the RIGHT Cursor key and follow screen instructions Use this menu choice with caution Restore Nav Directories deletes ALL navigation data waypoints routes tracks and groups and resets the navigation data directory in the Waypoint Management dialog box You may need to reset the navigation directory if yo...

Page 118: ...from supported accessories such as GPS Receiver or Temp Speed Each data window can be empty or contain one of the following information categories Course Time Navigation Time Date Position Timer Speed Triplog Temperature Voltage TTG Time to Go to the next Waypoint Default Sonar View Sonar View with Select Readouts NOTE The availability of the digital readout information corresponds with the view s...

Page 119: ...will adjust the temperature readout by the amount entered This menu option is available if a Temp Speed Accessory is connected and the paddlewheel has moved at least once Speed Calibration Advanced with Temp Speed only Settings 20 to 20 Default 0 Speed Calibration will adjust the speed readout by the percentage entered and will appear in the menu if a Temp Speed Accessory is connected and the padd...

Page 120: ... Format selects the format of the latitude and longitude position display Time Format Advanced International only Settings 12 hour 24 hour Default 12 hour Time Format changes the time format used by the unit Time Format selects a 12 hour or 24 hour format for the time of day displayed when Time Date is selected as a Digital Readout on the Sonar View see Setup Menu Tab Select Readouts Date Format A...

Page 121: ... the NMEA output on or off NMEA Output should be turned On if you connect the NMEA Output wires of the GPS Receiver cable to another NMEA compatible device such as an autopilot NMEA 0183 is a National Marine Electronics Association standard for data communication NOTE A separate purchase of accessory AS HHGPS may be required for the NMEA output function The following NMEA sentences are output when...

Page 122: ... Views from the View rotation Demonstration Settings Off Visible Default Visible Demonstration controls whether the Demonstration Mode is visible or off The Demonstration Mode appears on the screen if you don t press any keys during the warning screen at power up Menu settings cannot be saved in Demonstration see Power On and Start Up Options Menu Sound Control Settings No Sounds Alarms Only All S...

Page 123: ...he Views tab is selected This menu tab allows you to set the available views to either hidden or visible in the view rotation The view will be removed from the view rotation if it is set to Hidden and will be displayed in the view rotation if it is set to Visible NOTE See Views for more information Views Menu Tab Views Menu Tab ...

Page 124: ...rol head screen use a mild soap such as a non abrasive liquid hand soap and warm water Wipe the screen dry with a soft cloth Be careful to avoid scratching the screen If water spots remain use a solution of water and vinegar WARNING Do not use a chemical glass cleaner on the screen Chemicals in the solution may cause cracking in the lens of the unit NOTE Do not wipe the screen while dirt or grease...

Page 125: ...some time to wet the transducer when it is returned to the water Small air bubbles can climb to the surface of the transducer and interfere with proper operation These bubbles dissipate with time or you can wipe the face of the transducer with your fingers after the transducer is in the water ...

Page 126: ...ng removing corrosion from the battery terminals or wiring or actually replacing the battery if necessary Fishfinder Defaults to Simulator with a Transducer Attached A connected and functioning transducer will cause the newly started Fishfinder to go into Normal operating mode automatically If when you power up the Fishfinder it goes into Simulator mode automatically even though a transducer is al...

Page 127: ...djusted A mix of air and water flowing around the transducer cavitation may be interfering with the interpretation of sonar data See your Installation Guide for suggestions on adjusting the transducer position Electrical noise from the boat s engine may be interfering with sonar reception See Finding the Cause of Noise for more information Sonar readings may be affected if the transducer is not po...

Page 128: ... noise re appears To determine whether the boat s engine is the source of the noise increase the RPMs while the boat is in neutral and stationary to see if the noise increases proportionately if noise appears when you rev the engine the problem could be the spark plugs alternator or tachometer wiring Replace the spark plugs with resistor plugs install an alternator filter or route the control head...

Page 129: ...6 10 dB in 455 kHz Target Separation 2 1 2 Inches 63 5 mm Power Requirement 10 20 VDC LCD Matrix 640 V x 320 H Transducer XNT 9 DI T includes built in temperature probe Transducer Cable Length 20 ft 6 m Current Draw 400 mA IPX Rating IP67 Waterproof Submersible 1 m for 30 minutes and dust tight NOTE Humminbird verifies maximum stated depth in saltwater conditions but actual depth performance may v...

Page 130: ... 16 10 dB in 455 kHz Target Separation 2 1 2 Inches 63 5 mm Power Requirement 10 20 VDC LCD Matrix 640 V x 320 H Transducer XNT 9 DI T includes built in temperature probe Transducer Cable Length 20 ft 6 m Current Draw 400 mA IPX Rating IP67 Waterproof Submersible 1 m for 30 minutes and dust tight NOTE Humminbird verifies maximum stated depth in saltwater conditions but actual depth performance may...

Page 131: ... designed and intended as fixed or temporary installation in transportation vehicles such as automobiles aircraft and boats In some European Union member states these vehicles are considered outside of the scope of the Directive and EEE for those applications can be considered excluded from the WEEE Directive requirement This symbol WEEE wheelie bin on product indicates the product must not be dis...

Page 132: ... sonar beam Precision sonar beams such as the Humminbird 20 beam have a smaller dead zone than wider sonar beams Decibel The measurement for sound pressure level or intensity of the sonar return See dB Down Point dB Down Point The standard decibel level at which the sonar cone angle is measured and is written as 10 dB or 3 dB Measurements at smaller down points bigger negative numbers indicate tha...

Page 133: ...systems Either method is acceptable but it is important when comparing power outputs to make sure that the same measurement system is being used for both outputs because P T P numbers are 8 times higher than RMS numbers Greater power output allows the sonar signal to penetrate through weeds and thermoclines reach deeper depths and operate more effectively in noisy environments such as when the boa...

Page 134: ...is provided by a speed paddlewheel and is the measurement of the flow past the boat which may vary depending on current speed and direction Speed Through Water is most critical for anglers using downriggers as it impacts the running depth of the down riggers Speed Over Ground is optimal for navigation as accurate destination times can be derived from this measurement Humminbird products allow for ...

Page 135: ...from the transmitter into sound energy and that forms the sonar beam in turn Internally the transducer consists of one or more piezo electric disks that expand by very minute amounts to create the sound wave This element also works in reverse converting the returned sound energy back into an electrical signal that the receiver interprets See SONAR Zoom A feature that focuses on a smaller area of t...

Page 136: ...direction the boat is traveling measured in degrees from North i e 321 where 000 is North 090 East 180 is South 270 is West When the Course Over Ground is equal to Bearing the boat is said to be On Course and will arrive at the destination in the most efficient manner COG is often confused with Heading See Heading Cross Track Error XTE The straight line distance of the boat from the intended Track...

Page 137: ...e WGS84 It is important to select the correct Map Datum setting in your fishfinder when comparing GPS position to a paper chart to avoid slight position inaccuracies Almost all electronic charts use the WGS84 Map Datum and therefore they do not require setting changes MMC Multi Media Card An MMC is a postage stamp sized memory device used to store electronic data such a maps waypoints routes and o...

Page 138: ...95 of the time With SA inactive the GPS is accurate to within 45 meters 95 of the time Currently SA is inactive and the consumer can enjoy the greater precision GPS provides however the DoD reserves the right to activate SA at any time Speed Over Ground SOG The measurement of the boat s progress across a given distance and the speed measurement provided by GPS An alternate Speed Through Water is p...

Page 139: ...through correction signals broadcast from Federal Aviation Administration WAAS satellites stationed over the USA These secondary signals are automatically received by the standard Humminbird GPS Receiver With WAAS signal GPS accuracy is improved to within 3 meters 95 of the time Outside the United States regional governmental coalitions have created similar systems such as EGNOS Europe and MSAS Ja...

Page 140: ...e Monday Friday 8 00 a m to 4 30 p m Central Standard Time 1 800 633 1468 By e mail typically we respond to your e mail within three business days service humminbird com For direct shipping our address is Humminbird Service Department 678 Humminbird Lane Eufaula AL 36027 USA Contact Humminbird ...

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