AIS Connection Guide (RS-232)

Thank You

Thank you for choosing Humminbird, America's #1 name in fishfinders. Humminbird has built its reputation by designing and manufacturing top-quality, thoroughly reliable marine equipment.

531909-1_A

Overview
Use this guide to connect an Automatic Identification System (with an RS-232 hardware interface) to your Humminbird Fishing System's dual RS-232 port (NMEA 0183 sentences over RS-232). We encourage you to read this guide carefully so that you may understand the connection requirements. The connection is determined by the cable connector on the AIS data cable you have purchased. If the AIS data cable has a DE-9 connector, see DE-9 Connection. If the AIS data cable has connection wires, see Pigtail Connection.

DE-9 Connection

If the AIS equipment includes a data cable with a DE-9 connector, use the instructions in this section. Required Supplies (not included): Humminbird PC Connect Cable (AS-PC2), AIS data cable with a DE-9 connector, and a null modem adapter. 1. Turn off the power for the Humminbird control head and the AIS. 2. Insert the AS-PC2 cables NMEA-COM connector into the dual RS 232 port on the back of the Humminbird control head. For the location of the RS 232 port, see your Humminbird control head manual. 3. Connect the AS-PC2 cable's DE-9 connector (female) to the null modem. 4. See your AIS installation guide to connect the AIS data cable to the AIS. 5. Connect the AIS data cable's DE-9 connector to the null modem. See the illustration Connecting the DE-9 to the Null Modem. 6. See your AIS installation guide to connect power to the AIS equipment and finish the installation.
AS-HHGPS Cable with Pigtail
Null Modem AIS DE-9 Connector
Connecting the DE-9 to the Null Modem

AS-PC2 DE-9 Connector

Pigtail Connection
If the AIS equipment includes a data cable with a pigtail, use the instructions in this section. Required Supplies (not included): Humminbird AS-HHGPS Cable, AIS data cable with pigtail. 1. Turn off the power for the Humminbird control head and the AIS. 2. Use your AIS installation guide to locate the transmit, receive, and ground wires on the AIS data cable. 3. Connect the AS-HHGPS wires to the AIS data cable wires as shown in the Wiring Information chart. Tape or apply heat-shrink insulation to each connection to prevent shorting the wiring. 4. Tape or apply heat shrink insulation to the red wire on the AS-HHGPS Cable. 5. Route the cable to the Humminbird control head. Insert the AS-HHGPS cables NMEA-COM connector into the dual RS 232 port on the back of the Humminbird control head. For the location of the RS 232 port, see your Humminbird control head manual. 6. Follow the instructions in the AIS manual to connect power to the AIS equipment and finish the installation.

Wiring Information

Humminbird AS-HHGPS Cable (RS-232) Green (Receive) White (Transmit) Black (Ground) AIS Data Cable (RS-232) Transmit Receive Ground

Contact Humminbird

If you have questions about the installation, please contact our Customer Resource Center at 1-800-633-1468. Our Customer Resource Center is available by phone, Monday - Friday, 8:00 a.m. - 4:30 p.m. Central Standard Time. We are also available by e-mail at service@humminbird.com (please allow 3 business days for a reply).

Navionics Gold, HotMaps, and HotMaps Premium are registered trademarks of Navionics. 700 Series, Cannon, CannonLink, DualBeam PLUS, Fish ID+, Fishing GPS, Humminbird, HumminbirdPC, InterLink, QuadraBeam PLUS, RTS, RTS Window, Structure ID, Selective Fish ID+, Side Imaging, WeatherSense, WhiteLine, UniMap, and X-Press Menu are trademarked by or registered trademarks of Humminbird. 2009 Humminbird, Eufaula AL, USA. All rights reserved.

Table of Contents

How Sonar Works 1 Side Imaging Sonar... 3
DualBeam PLUS Sonar... 3 QuadraBeam PLUS Sonar (with optional-purchase QuadraBeam PLUS transducer)... 4 Universal Sonar 2.... 5
How GPS and Cartography Work
Whats On the Side Imaging Display 8 Understanding the Side Imaging Display.. 10 Side Imaging Technology: How It Works.. 12 Side Imaging: For Best Performance... 13 Whats On the Sonar Display 18
Understanding the Sonar Display... 20 Real Time Sonar (RTS) Window... 21 Freeze Frame and Cursor... 22 Bottom Presentation... 23
Side Imaging View... 28 Sonar/Side Combo View... 30 Sonar View.... 31 Sonar Zoom View....32 200/83 kHz Split Sonar View.... 33 Big Digits View.... 34 Circular Flasher View.... 35 Snapshot and Recording View... 36 Side Beam View (with optional-purchase QuadraBeam PLUS transducer).. 46 Bird's Eye View.... 50 Chart View.... 51
Chart/Sonar Combo View... 53 Chart/Side Combo View... 54
Introduction to Navigation
Waypoints, Routes and Tracks... 59 Save, Edit or Delete a Waypoint... 60 Navigate to a Waypoint or Position... 62 Add a Waypoint Target or Trolling Grid... 64 Save, Edit or Delete a Route... 66 Save or Clear a Current Track... 67 Edit, Delete or Hide Saved Tracks.. 67 Man Overboard (MOB) Navigation... 68
Using Your 700 Series Control Head Key Functions
POWER/LIGHT Key.... 71 VIEW Key.... 71 INFO Key.... 72 MENU Key... 72 4-WAY Cursor Control Key.... 73 MARK Key.... 74 GOTO Key.... 74 ZOOM (+/-) Key.... 75 VIEW PRESET Keys... 75 EXIT Key.... 76
Multi-Media Card (MMC)/SD Slot
Adding Maps to Your Fishing System... 77 Updating Software... 78 Exporting Navigation Data... 79

Depth Alarm.... 121 Fish ID Alarm.... 121 Low Battery Alarm... 122 Aux. Temp. Alarm (with optional-purchase temp. probe or Temp/Speed only). 122 Temp. Alarm.... 123 Off Course Alarm.... 124 Arrival Alarm.... 124 Drift Alarm.... 125 Alarm Tone... 125

Sonar Menu Tab

Beam Select.... 127 Fish ID+.... 128 Fish ID Sensitivity... 129 Real Time Sonar (RTS) Window.. 129 Bottom View.... 130 Zoom Width... kHz Sensitivity (Advanced).... kHz Sensitivity (Advanced: with QuadraBeam PLUS transducer). 132 Depth Lines (Advanced)... 133 Surface Clutter (Advanced)... 134 Noise Filter (Advanced).... 135 Max Depth (Advanced).... 135 Water Type (Advanced).... 136 Transducer Select... 136

Navigation Menu Tab 137

Current Track.... 138 Saved Tracks.... 138 Waypoints... 140 Routes.... 142 Chart Orientation... 144 North Reference... 144 Waypoint Decluttering... 144 Grid Rotation.... 145 Trackpoint Interval.... 145 Track Min Distance (Advanced)... 146 Track Color Range... 146 Map Datum (Advanced)... 147 Course Projection Line... 147 Export All Nav Data (Advanced)... 147 Delete All Nav Data (Advanced)... 148 Continuous Navigation Mode... 148 GPS Receiver Override... 149

Chart Menu Tab

Chart Detail Level... 151 Map Borders.... 152 Lat/Lon Grid.... 153 Spot Soundings....153 Navaids on Birds Eye View... 153 Shaded Depth.... 154 Chart Select.... 154 NVB Chart Preference... 154 Set Simulation Position (Advanced)... 155 Set Map Offset (Advanced).... 156 Clear Map Offset (Advanced)... 156

Setup Menu Tab 157

Units - Depth.... 158 Units - Temp (International only)... 158 Units - Distance.... 158 Units - Speed.... 159 User Mode... 159 Language (International only)... 159 Triplog Reset.... 160 Restore Defaults.... 160 Select Readouts (Advanced, Sonar view only)... 161 Depth Offset (Advanced)... 162 Aux. Temp. Offset (Advanced).... 163 Temp. Offset (Advanced)... 163 Speed Calibration (Advanced, with Temp/Speed only).. 164 Local Time Zone (Advanced)... 164 Daylight Saving Time (Advanced)... 165 Position Format (Advanced)... 165 Time Format (Advanced, International only)... 166 Date Format (Advanced, International only)... 166 Digits Format (Advanced)... 167 NMEA Output (Advanced)... 167 Sonar..... 168
Views Menu Tab Accessories Menu Tab

169 170

Using Screen Snapshot... 171

Troubleshooting 174

Fishing System Doesnt Power Up... 174 Fishing System Defaults to Simulator with a Transducer Attached. 174 Display Problems... 175 Finding the Cause of Noise... 176

Whats On the Sonar Display
The 700 Series Fishing System can display a variety of useful information about
Depth - water depth; can be set to alarm when the water becomes too shallow. Temperature - water surface temperature. Timer - Elapsed time with Temp/Speed Accessory or GPS Receiver. Distance - Distance traveled with Temp/Speed Accessory or GPS Receiver. Average Speed - Average speed reading with Temp/Speed Accessory or GPS Receiver. Speed - if a Temp/Speed accessory or GPS Receiver is attached, the Fishing System can display the speed of the boat and can keep a Triplog of nautical or statute miles traveled. Second Sonar Return - when the sonar signal bounces between the bottom and the surface of the water and back again. Use the appearance of the second return to determine bottom hardness. Hard bottoms will show a strong second return, while soft bottoms will show a very weak one or none at all. Cursor Dialog Box - indicates cursor depth on the display and the depth of the bottom directly below the cursor. The Latitude and Longitude of the cursor position, the distance to travel to the cursor position and the bearing to the cursor position is shown with a GPS receiver. A waypoint can be marked at the cursor position for later retrieval and use with a GPS receiver.
NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if either device information from the GPS receiver will be displayed on the view.
Whats on the Sonar Display
the area under and adjacent to your boat, including the following items:
High Sonar Intensity Return Thermoclines - layers of water with different temperatures that appear at different depths and different times of the year. A thermocline typically appears as a continuous band of many colors moving across the display at the same depth. Bait Ball Fish - the Fishing System 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 depth displayed above it. The size of the symbol indicates the intensity of the sonar return. The unit will clearly show schools of Bait Fish as "clouds" of different shapes and sizes, depending on the number of fish and boat speed. Cursor - available in Freeze Frame and can be positioned in the Sonar View to provide depth of a sonar return and bottom depth below the cursor. RTS (Real Time Sonar) Window Structure - where fish may be hiding. Low Sonar Intensity Return

is connected to the 700 Series Fishing System. If both devices are connected, then only the
Understanding the Sonar Display
It is important to understand the significance of the display. The display does not show a literal 3dimensional representation of what is under the water. Each vertical band of data received by the control head and plotted on the display represents something that was detected by a sonar return at a particular time. As both the boat and the targets (fish) may be moving, the returns are only showing a particular segment of time when objects were detected, not exactly where those objects are in relation to other objects shown on the display.
The returned sonar echoes are displayed on the screen. As a new echo is received, the historical data scrolls across the screen.
Real Time Sonar (RTS) Window )
A Real Time Sonar (RTS) Window appears 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 colors. Red indicates a strong return and blue indicates a weak return. The depth of the sonar return is indicated by the vertical placement of the return on the display depth scale. The Wide RTS Window indicates the sonar intensity through the use of a bar graph. The length of the plotted return indicates whether the return is weak or strong. The depth of the sonar return is indicated by the vertical placement of the return on the display depth scale. The Wide RTS Window does not use grayscale.
Freeze Frame and Active Cursor
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. Instant Image Update - You can change a variety of sonar menu settings (such as Sensitivity or Upper Range), and the adjustments will be shown instantly on the screen. When combined with the Freeze frame feature, you can adjust and see the effects of many different sonar settings quickly and easily. The RTS Window continues to update in Freeze Frame. Pressing EXIT will exit Freeze Frame, and the display will start to scroll. Freeze Frame is available in the Sonar, Sonar Zoom, and 200/83 kHz Split Sonar Views.

NOTE: Sonar chart speed is increased during Fast Forward and reversed during Rewind. This may reduce the quality of the sonar image, since at higher speeds, not every sonar return can be processed and displayed. NOTE: Navigation is not affected by the Sonar Recording feature, but any active navigation is cancelled when playback begins or ends.

Recording Playback

Name of recording Time and Date recording started Position where recording started Current Ping Rate Average Ping Rate Amount of time remaining to play Playback speed icons Amount of Time Already Played Amount of time remaining to play Overall length of recording
To delete saved recordings: You can delete the highlighted recording, or all saved recordings, using the Snapshot and Recording X-Press Menu. 1. From the Snapshot and Recording View, press the UP or DOWN Cursor keys to highlight the recording you want to delete. 2. Press the MENU key once to access the Snapshot and Recording X-Press Menu. 3. Press the UP or DOWN Cursor key to select Delete Recording, and then press the RIGHT Cursor key to complete your selection. The Confirm dialog box will appear. To confirm deletion, press the RIGHT Cursor key once more. To cancel deletion, press the LEFT Cursor key.
NOTE: To delete ALL of your saved recordings, select Delete All Recordings from the Snapshot and Recording X-Press Menu, and press the RIGHT Cursor key to confirm the deletion.

Side Beam View

Side Beam View is only available if you have connected an optional-purchase QuadraBeam PLUS transducer accessory and set Transducer Select to QuadraBeam (see Sonar Menu Tab: Transducer Select).
NOTE: The QuadraBeam PLUS transducer requires a separate purchase.
Side Beam View displays sonar data from the left and right 455 kHz beams and the 200 kHz down-looking beam in one view. The sonar information from the side-looking beams reveals bottom contour, structure, and fish similar to the down-looking beam, but the area covered is to the left and right, which gives you a wider view of the bottom. The Side Beam View can be arranged in any of the following layouts: Default, Classic, and Slanted. To adjust the Quad Layout Setting for the Side Beam View: 1. From the Side Beam View, press the MENU key once to access the Sonar X-Press Menu. 2. Press the DOWN Cursor key to highlight Quad Layout. 3. Press the LEFT or RIGHT Cursor keys to change the Quad Layout setting for the Side Beam View. (Default, Classic, Slanted, Default = Default)

NOTE: The PC Connect Cable requires a separate purchase. For more information visit our web site at www.humminbird.com or contact our Customer Resource Center at 1-800-633-1468.
Exit PC Connect mode by powering the Fishing System off.

X-Press Menu

The X-Press Menu provides a shortcut to your most frequently-used settings. The options provided on the X-Press Menu correspond with the current view. For example, if you are in a Sonar View and press the MENU key once, the Sonar X-Press Menu will display.
To use an X-Press Menu: 1. In any view, press the MENU key once to open the X-Press Menu. 2. Press the UP or DOWN Cursor keys to highlight an X-Press Menu option, then use the RIGHT 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 will update immediately (i.e. you dont have to exit the menu to apply the change to the screen).
Menu options can be simplified or expanded by setting the User Mode to Normal or Advanced. See Main Menu: User Mode for details.

Main Menu

The Main Menu provides the standard set of menu options, including the settings that are changed less frequently. The Main Menu is organized under the following tabs to help you find a specific menu item quickly: Alarms, Sonar, Navigation, Chart, Setup, Views, Accessories.
Main Menu Normal User Mode
To use the Main Menu: 1. In any view, press the MENU key twice to open the Main Menu. 2. Press the RIGHT or LEFT Cursor keys 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 changes or to see more information. Press the EXIT key to move quickly to the top of the tab.
Total Screen Update - When you change any menu settings that affect the current view, the view will update immediately (i.e. you dont have to exit the menu to apply the change to the screen).
Quick Tips for the Main Menu
From any menu option on a menu tab, press the EXIT key to jump directly to the top of the tab. From the bottom of a menu tab, press the DOWN key to jump directly to the top of the tab. From the top of a menu tab, press the LEFT or RIGHT Cursor keys to scroll to the next tab. You can also jump to the beginning or end of the tab rotation by repeatedly pressing the RIGHT or LEFT Cursor keys. If there is a down arrow at the bottom of a menu tab, press the DOWN Cursor key to scroll to additional menu options. If there is a right or left arrow on a menu option, press the RIGHT or LEFT Cursor keys to make setting changes 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.

User Mode (Normal or Advanced)
Menu options can be simplified or expanded by setting your Fishing System User Mode to Normal or Advanced. Normal Mode is the default setting when you first power on your 700 Series Fishing System. Normal mode is provided for users who want greater simplicity and fewer menu choices. Advanced Mode is provided for users who want the highest level of control over the Fishing System. Several menu settings are added to the Main Menu when the User Mode is changed to Advanced. To change the User Mode setting: 1. Press the MENU key twice to access the Main Menu. 2. Press the DOWN Cursor key to highlight User Mode on the Setup main menu. 3. 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 back to Normal Mode. For example, the Select Readouts menu option is available when the User Mode is set to Advanced. If you change the Select Readouts settings while operating in Advanced User mode, the Select Readouts you choose will continue to display on the screen even if you switch back to Normal User Mode.

Sonar Tab, Normal Mode

Sonar Tab, Advanced Mode
Side Imaging X-Press Menu
(Side Imaging Views only)
The Side Imaging X-Press Menu provides a shortcut to your most frequently-used settings. Press the MENU key once while in any of the Side Imaging Views to access the Side Imaging X-Press Menu.

SI Side

SI Side sets which transducer beam from the SI beams will be shown on the display. To Adjust SI Side: 1. Highlight SI Side on the Side Imaging X-Press Menu. 2. Press the RIGHT or LEFT Cursor key to select the transducer beam. (Left, Both, Right, Default = Both)

SI Sensitivity

SI Sensitivity controls how much detail is shown on the display. Increasing the sensitivity shows more sonar returns from small baitfish and suspended debris in the water; however, the display may become too cluttered. When operating in very clear water or greater depths, increased sensitivity shows weaker returns that may be of interest. Decreasing the sensitivity eliminates the clutter from the display that is sometimes present in murky or muddy water. If SI Sensitivity is adjusted too low, the display may not show many sonar returns that could be fish. To adjust the SI Sensitivity: 1. Highlight SI Sensitivity on the Side Imaging X-Press Menu. 2. Press the RIGHT or LEFT Cursor keys to increase or decrease the SI Sensitivity setting. (Auto, 1 to 20, where Low = 1, High = 20, Default = 10)

SI Enhance

SI Enhance allows you to adjust your Side Imaging View in three categories: Sensitivity, Contrast, and Sharpness. Whether youre searching the Side Imaging data for fish or certain bottom contour, the most effective settings will vary with the situation. The display will update as you adjust each category. SI Enhance can also be used during recording playback (see Snapshot and Recording View).

Waypoint [Name] Submenu

The Waypoint Submenu contains the following menu options: Edit allows you to edit the Name, Position (Latitude and Longitude) and select the Icon that will be used to represent the waypoint in the Chart and Combo Views. Delete allows you to delete a waypoint from the saved waypoints list. Go To allows you to select a waypoint and start navigation toward that waypoint, or add that waypoint to the end of the current route. Target allows you to apply a target to a waypoint selected from the saved waypoints list. Grid allows you to apply a trolling grid to a waypoint selected from the saved waypoints list. 113
(Snapshot and Recording View only)
The Snapshot and Recording X-Press Menu provides access to the image management and sonar recording functions. Press the MENU key once while in the Snapshot and Recording View to access the Snapshot and Recording X-Press Menu.
NOTE: For more information, see Views: Snapshot and Recording View.
(optional-purchase MMC/SD Card, Snapshot and Recording View only)
Start Recording allows you to start sonar recording from the Snapshot and Recording View. This menu option is only available when you have an optionalpurchase MMC/SD card installed and you are in Snapshot and Recording View. To start sonar recording: 1. Highlight Start Recording on the Snapshot and Recording X-Press Menu. 2. Press the RIGHT Cursor key to start recording.

Stop Recording

(optional-purchase MMC/SD Card only)
Stop Recording allows you to stop sonar recording. This menu option is only available when you have an optional-purchase MMC/SD card installed. To stop sonar recording: 1. Highlight Stop Recording from any X-Press Menu. 2. Press the RIGHT Cursor key to stop recording.

Delete Image

Delete Image allows you to delete a single screen capture image from the Snapshot and Recording View. This menu option is only available when you have an optional-purchase MMC/SD card installed, you are in Snapshot and Recording View, and you have selected an image thumbnail. To delete an image: 1. From the Snapshot and Recording View, press the UP or DOWN Cursor keys to select the image you want to delete. 2. Press the MENU key once, and highlight Delete Image on the Snapshot and Recording X-Press Menu. 3. Press the RIGHT Cursor key to initiate deleting the image. 4. The Confirm dialog box will appear. To delete the image, press the RIGHT Cursor key once more. To cancel deleting the image, press the LEFT Cursor key.

Fish ID Alarm sounds when the Fishing System detects fish that correspond to the alarm setting. Fish ID Alarm will only sound if Fish ID+ is on.
For example, if you've set the Fish ID Alarm to sound for Large fish only, the Fish ID alarm will sound when a large-sized fish is detected.
To change the Fish ID Alarm setting: 1. Highlight Fish ID Alarm on the Alarms main menu. 2. Press the LEFT or RIGHT Cursor keys to change the Fish ID Alarm setting. (Off, All, Large/Medium, Large, Default = Off)
Off All Large/Medium Large

Low Battery Alarm

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 Fishing System. The Low Battery Alarm should be set to warn you when the battery voltage drops below the safety margin that you have determined.
For instance, if you are running a trolling motor (battery operated), you would want to set the Low Battery Alarm to sound before the battery voltage drops too low for it to be used to start your main, gasoline-powered engine.
To change the Low Battery Alarm setting: 1. Highlight Low Battery Alarm on the Alarms main menu. 2. Press the LEFT or RIGHT Cursor keys to change the Low Battery Alarm setting. (Off, 8.5V - 13.5V, Default = Off)

Aux. Temp. Alarm

(with optional-purchase temp. probe or Temp/Speed only)
Aux. Temp. Alarm sounds when the water temperature from the Paddlewheel/Temperature Probe detected by the Fishing System reaches the Aux. Temp. Alarm setting, which is either set in degrees Fahrenheit or Celsius [International Models only].
For example, if the Aux. Temp. Alarm is set to 58 degrees Fahrenheit, and the water temperature falls from 60 degrees to 58 degrees, the Aux. Temp. Alarm will sound. Similarly, if the water temperature rises from 56 degrees to 58 degrees, the Aux. Temp. Alarm will also sound.
To change the Aux. Temp. Alarm setting: 1. Highlight Aux. Temp. Alarm on the Alarms main menu. 2. Press the LEFT or RIGHT Cursor keys to change the Aux. Temp. Alarm setting. (Off, 33-120 [Fahrenheit], 0-50 [Celsius], Default = Off)

Temp. Alarm

Temp. Alarm sounds when the water temperature detected by the Fishing System reaches the Temp. Alarm setting, which is either set in degrees Fahrenheit or Celsius [International Models only].
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 sound. Similarly, if the water temperature rises from 56 degrees to 58 degrees, the Temp. Alarm will also sound.

To change the Water Type setting: 1. Make sure the User Mode is set to Advanced, then highlight Water Type on the Sonar main menu. 2. Use the LEFT or RIGHT Cursor keys to change the Water Type setting. (Fresh, Salt (shallow), Salt (deep), Default = Fresh)

Transducer Select

Transducer Select allows you to choose which connected transducer you want to use. When you choose a transducer, the corresponding features will be automatically added to your Fishing System. Your Fishing System will default to the Compact Side Scan Transducer, which combines Side Imaging and DualBeam PLUS technology. Your Fishing System also supports the optional-purchase QuadraBeam PLUS transducer and optional-purchase Universal Sonar 2. To change the selected Transducer: 1. Highlight Transducer Select on the Sonar main menu. 2. Press the LEFT or RIGHT Cursor keys to change the selected transducer. (Compact Side Scan, QuadBeam, Universal Sonar 2, Default = Compact Side Scan)

Navigation Menu Tab

Press the MENU key twice to access the Main Menu, then press the RIGHT Cursor key until 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.

Current Track

Current Track allows you to view the Current Track submenu. To view the Current Track Submenu: 1. Highlight Current Track on the Navigation main menu. 2. Press the RIGHT Cursor key to view the Current Track submenu.

Current Track Submenu

The Current Track Submenu contains the following menu options: Save allows you to save the current track. Clear allows you to clear the current track. Appearance allows you to change the style and color of the current track. (Breadcrumb Trail, Dashed Line, Solid Line or Wide Line, and if a line, the color of the line, or Color By Depth). If you choose Color By Depth, you cannot choose one color to represent the track; a color range will represent the different depths on the track instead, from light green (shallowest) to black (deepest). You can change the depth range associated with black by using Track Color Range menu setting (see Navigation Menu Tab: Track Color Range).

Saved Tracks

Saved Tracks Submenu
Saved Tracks allows you view the Saved Tracks submenu.
To view the Saved Tracks Submenu: 1. Highlight Saved Tracks on the Navigation main menu. 2. Press the RIGHT Cursor key to view the Saved Tracks submenu.
The Saved Tracks Submenu contains the following menu options: Edit allows you to select a saved track and change its Name, Visibility, Style and Color. Select Edit and press the RIGHT Cursor key to display the saved tracks list. Select a track to edit and press the RIGHT Cursor key. When the Edit Track dialog box appears, use the 4-WAY Cursor Control key to move between fields and make changes to the following categories: Name: Use the 4-WAY Cursor Control key to change the name of the saved track. Press the LEFT or RIGHT Cursor keys to move between name fields, and press the UP and DOWN Cursor keys to change the letter or number of each field. All upper and lower case letters are available, as well as digits 0-9 and some punctuation characters. Visibility: Press the UP or DOWN Cursor keys to select Hidden or Visible. Style: Press the UP and DOWN Cursor keys to choose the track style (appearance). Color: If the track style youve chosen is a line style, the color field will appear. Press the Up and DOWN Cursor keys to choose a color or shade.

Chart Orientation

Chart Orientation allows you to select whether the Chart and Combo Views should be drawn North-Up or Course-Up. To change the Chart Orientation setting: 1. Highlight Chart Orientation on the Navigation main menu. 2. Press the LEFT or RIGHT Cursor keys to change the Chart Orientation setting. (North-Up, Course-Up, Default = North-Up)
NOTE: The Chart Orientation setting does not apply to the Birds Eye View.

North Reference

North Reference allows you to have bearings displayed with one of two orientations: True North or Magnetic North. To change the North Reference setting: 1. Highlight North Reference on the Navigation main menu. 2. Press the LEFT or RIGHT Cursor keys to change the North Reference setting. (True, Magnetic, Default = True)

Waypoint Decluttering

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 declutterwaypoint names will shorten and the waypoint icons will change into small blue icons. The Waypoint Decluttering menu option is available when User Mode is set to Advanced (see Main Menu: User Mode). To change the Waypoint Decluttering setting: 1. Make sure the User Mode is set to Advanced, and highlight Highlight Waypoint Decluttering on the Navigation main menu. 2. Press the LEFT or RIGHT Cursor keys to change the Waypoint Decluttering setting. (On, Off, Default = On)

Grid Rotation

Grid Rotation allows you to set the orientation of the trolling grid in degrees, where a setting of 0 displays a standard North, South, East, West alignment. See Navigation Menu Tab: Waypoints for information on how to set a Grid.
NOTE: This feature may appear as either Trolling Grid Rotation or Grid Rotation, depending on your model.
To change the Grid Rotation setting: 1. Highlight Grid Rotation on the Navigation main menu. 2. Press the LEFT or RIGHT Cursor keys to change the Grid Rotation setting. (0 to 89, Default = 0)

Trackpoint Interval

Trackpoint Interval allows you to select the time period between trackpoints. The current track can only contain up to 20,000 trackpoints, so longer time periods cause the track to extend back further in time, but will be less detailed.
NOTE: Trackpoint Interval works in conjunction with Track Min Distance. Both conditions must be met before a trackpoint is added to the current track.

Hydrodynamic noise can be overcome by proper transducer installation. Many Humminbird products have a Noise Filter menu setting that allows the user to clear the screen of noise that is difficult to eliminate. Pixels: Pixels are the picture elements, or small square blocks, that make up the image on the LCD. Measured as a vertical by horizontal number (i.e. 640V x 320H), this key specification typically indicates the quality of resolution. In fishfinders, the total resolution (vertical multiplied by horizontal) is often less important than the Vertical Pixel resolution. See Pixels, Vertical. Pixels, Vertical: Vertical Pixels are a number of vertical picture elements in a single column on an LCD display. A greater number of vertical pixels provide finer resolution of targets detected by sonar. Essentially, a vertical distance (the depth), when divided by a larger number, breaks that distance into smaller samples, each representing a smaller area and thus providing more detail. In fishfinders, vertical pixels are more critical than horizontal pixels because the horizontal axis of the display represents time, or history. Sonar information on the horizontal axis can vary greatly, depending on boat speed and the Chart Speed setting. A greater number of horizontal pixels show more sonar history that the boat has passed through. On many models, Humminbird provides the most vertical pixels to provide a better display resolution. See Chart Speed and Pixels. Power Output: Power output is the amount of sound energy emitted into the water by the sonar transmitter. Power output is measured using either RMS (Root Mean Square) or P-T-P (Peak-to-Peak) measurement 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 boat is running at high speed. Pulse Width (Pulse Length): Pulse Width is the length of time that a sonar sound burst is transmitted into the water. Shorter pulse widths provide better target separation, but cannot travel to great depths. Longer pulse widths provide better depth penetration, but result in poorer target separation. Humminbird varies pulse width based on depth to optimize both target separation and depth performance. See Target Separation.
QuadraBeam PLUS: QuadraBeam PLUS is a Humminbird sonar configuration that uses four sonar beams for a more detailed bottom image. QuadraBeam PLUS uses the DualBeam PLUS configuration for downlooking, and also adds two additional beams to look to the left and right. The sonar beams pointing to the left and right provide the ability to spot fish and structure over a wide 90 area, and to identify on which side of the boat they are located. See DualBeam PLUS. Quick Disconnect Mount: The Quick Disconnect Mounting system is an exclusive Humminbird feature that permits the unit to be easily removed from the mounting base by pressing a release button, and re-installed by simply snapping it back into place. All cable connections are made when installing, so that no separate wiring connections are required. Additionally, the mount offers 90 tilt and 360 swivel capability to adjust the viewing angle of the unit as you move about the boat. Real Time Sonar: Real Time Sonar is a Humminbird technology that delivers ultra-fast sonar transmitter/receiver operation and results in a more detailed instantaneous view of what is under the boat. The Real Time Sonar window is a vertical band at the right side of the display that shows the instantaneous sonar return from the transducer at a particular instant. The RTS Window menu option permits the user to adjust the window to show the full sonar signal return, or just a narrower band that indicates intensity using grayscale. Real Time Sonar relies on very fast Sonar Update Rate (Ping Speed). See Sonar Update Rate. Receiver: See Transmitter. Second Return: The Second Return is a term that describes the appearance of a second sonar return below the primary sonar return (bottom contour) at exactly twice the true depth. The second return is caused by the same sonar energy bouncing off the bottom once, rebounding to the water surface and then traveling back down to the bottom to be reflected again. Second returns are more common in shallow water and over hard bottoms; it is actually possible to see a third sonar return under some circumstances. The second return provides useful information to help determine bottom hardness, as areas with harder bottoms will generally create a second return. The second return can be used as a guide to set Sensitivity when in shallower water. 185

Structure: Structure is a general term for objects on the bottom that present a discontinuity and are a likely attractor for fish. This includes bottom contour features (drop-offs, humps, and holes), standing structure (stumps, timbers, brush piles) and a wide range of other potential objects (sunken boats, reefs). Humminbird units excel at showing structure with great detail over a wider area due to unique sonar configurations developed for the angler. Structure ID: Structure ID is a Humminbird feature that describes the traditional grayscale method of presenting sonar information. See Grayscale. Surface Clutter: Surface Clutter is a phenomenon where sonar returns are reflected off of tiny objects near the surface of the water, including algae and even air bubbles. Typically, saltwater environments have significantly greater surface clutter than freshwater due to continuous wind and wave action that causes aeration at the surface. The Surface Clutter menu provides manual control to bias the default settings under extreme conditions. Target Separation: Target Separation is the measurement of minimum distance that a fishfinder needs to be able to recognize two very close objects as two distinct targets (i.e. two fish hanging very close, or a fish hanging very close to structure). Humminbird fishfinders provide a very good 2 1/2 inches of target separation in shallower than 100 feet of depth. Target separation decreases as depth increases due to the need for longer Pulse Width to achieve greater depth. See Pulse Width. Thermoclines: Thermoclines are water layer(s) of distinctly different temperatures that create a sonar reflection due to the density of the differing water temperatures. Typically a thermocline will appear as a continuous band across the display at some distance above the bottom contour. Thermoclines are of interest to anglers because fish will suspend above or below the thermocline as they seek the optimum temperature and oxygen levels. Time Variable Gain: Time Variable Gain is a processing step applied to the sonar return to normalize the data so that objects of equal size (i.e. fish) appear to be the same size, even if they are separated by a good distance. Time Variable Gain is a fundamental attribute of good sonar, but is often promoted as a feature. Total Screen Update: A Humminbird feature that refreshes and updates all the sonar information on the display when a range change occurs. Without Total Screen Update, only the most recent sonar information would be drawn to the 187