Eagle Electronics 640C, 640cDF manual ASP Advanced Signal Processing, To change the ASP level

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Section 4: Sonar Options & Features

ASP(Advanced Signal Processing)

The ASP feature is a noise rejection system built into the sonar unit that constantly evaluates the effects of boat speed, water conditions and interference. This automatic feature gives you the best display pos- sible under most conditions.

The ASP feature is an effective tool in combating noise. In sonar terms, noise is any undesired signal. It is caused by electrical and mechanical sources such as bilge pumps, engine ignition systems and wiring, air bubbles passing over the face of the transducer, even vibration from the engine. In all cases, noise can produce unwanted marks on the display. The ASP feature has four settings — Off, Low, Medium and High. If you have high noise levels, try using the "High" ASP setting. However, if you are having trouble with noise, we suggest that you take steps to find the interference source and fix it, rather than continually using the unit with the high ASP setting.

There are times when you may want to turn the ASP feature off. This allows you to view all incoming echoes before they are processed by the ASP feature.

To change the ASP level:

1.From the Sonar Page, press MENU↓ to SONAR FEATURESENT.

2.Press ↓ to NOISE REJECTIONENT.

3.Press ↓ ↑ to select a setting, then press ENT.

4.To return to the main page display, press EXITEXIT.

Sonar Menu with Sonar Features selected (left).

In the Sonar Features menu, Noise Rejection is selected with ASP in the default low setting (right).

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Contents FishElite 640c & SeaCharter640cDF Copyright 2005 LEI-Eagle All rights reserved Table of Contents Basic Sonar Quick Reference Sonar Options & FeaturesBasic GPS Quick Reference 100 Sonar Troubleshooting Basic GPS OperationsAdvanced GPS Operations 119 System & GPS Setup 131 Supplemental Material 175 Searching 161Page How this manual can get you out on the road, fast Read Me FirstPage Back-up memory GeneralSonar Position updates Audible alarmsSonar Sounding Depth capabilityHow Eagle Sonar Works Graphic symbols for Waypoints or eventPosition points How GPS Works Introduction to GPS and Waas Page Page Sonar Viewer Free Training Aids AvailableEmulator Menu Commands How to use this manual typographical conventionsArrow Keys KeyboardPage Preparations Transducer InstallationSelecting a Transducer Location Pad Deadrise less than Strakes How low should you go?Transom Shoot-Thru-Hull vs. Transom MountingTransducer centerline Hull bottom Assembling the bracket Transom Transducer Assembly and MountingDot Alignment letters Positions Transducer Aligning the transducer on the transomTransducer bracket RatchetRatchet Bolt RatchetsNut Flat washerDrilling mounting holes Assembling the transducerMetal Nut Washer Rubber WashersBottom Hull Flat-bottom hull Deep-vee hull Attaching transducer to transomInternal tooth washer TMB-S bracket Bolt Nut Flat washer Trolling Motor Bracket Installation single-frequency onlyPartial fish arches Transducer Orientation and Fish ArchesTransducer aimed Too far backShoot-Thru-Hull Preparation Testing Determines Best LocationHulls With Flotation Materials Transducer location High speed Trolling speed True bottom Second bottom Manual range settingShoot-Thru-Hull Installation Epoxy transducer to hull Speed/Temperature Sensors Accessory Sonar unit rear view Optional Speed Sensor InstallationSocket Transom Bottom of hull Good locationPower Connections Antenna/Receiver Module Installation Nmea Cable Connections Nmea WiringMounting the Unit Bracket, In-Dash or Portable Orange ReceiveBracket Installation 173.9 77.1 27.6 137.9 Millimeter 56.9 Inch Front146.5 In-Dash Installation113.5 Millimeters InchesPortable Installation MMC or SD Card Memory Card InstallationCell battery To remove an MMC Other AccessoriesTo add an MMC or SD Card Thumb ScrewInsert card face up, this wayMapCreate 6 CD-ROM left. MMC card reader for USB ports right Page Keyboard Basic Sonar OperationMain Menu Power/lights on and offMain Menu Satellite Status PagesMap NavigationSonar Depth scale Zoom bar FasTrack bar graph Bottom signal Page Basic Sonar Quick Reference Sonar Operations To adjust sensitivity Fish Symbols vs. Full Sonar Chart To Restore Default SettingsTo change the ASP level ASP Advanced Signal ProcessingDepth Alarms AlarmsTo adjust and turn on the shallow alarm To adjust and turn on the deep alarm Zone AlarmTo adjust and turn on the zone alarm To turn on the fish alarm Fish AlarmCalibrate Speed To change chart speed Chart SpeedColorLine To adjust the ColorLine level To change the information displayed on your screen Customize Page DisplaysThin or no ColorLine Wider ColorLine Cursor line Depth box Depth CursorDepth Range Automatic To switch to Manual Depth RangeDepth Range Manual Fish I.D. FasTrackFishTrack To turn on the Fish I.D. featureFish Symbols Frequency SeaCharter onlyTo turn on FishTrack With FishTrackTo change the frequency setting to 50 kHz Log Sonar Chart DataTo change the frequency setting to 200 kHz HyperScrollNoise Rejection To record or log chart dataOverlay Data To overlay information on your screen To move overlay data To remove overlaid dataTo change displayed data font size Ping Speed & HyperScrollSteering arrow To turn off HyperScroll To change Ping SpeedReset Water Distance Reset OptionsSet Keel Offset Sensitivity & Auto Sensitivity To adjust sensitivity in auto modeAutomatic Sensitivity To adjust sensitivity in manual mode Sonar Chart ModeTo change the chart mode color scheme To turn Auto Sensitivity back onFull Sonar Chart Sonar Page & Sonar Chart Display OptionsDigital Data Split Zoom Sonar ChartCustomizing the Digital Data Page Map With Sonar Sonar SimulatorTitle bar with chart file name Play symbol flashing Surface Clarity Stop ChartZoom & Zoom Bar To adjust the Surface Clarity levelSurface clutter Zoom Pan Unit freezes, locks up, or operates erratically Unit wont turn onNoise No fish arches when the Fish I.D. feature is offPage Page Basic GPS Operations Power/lights on and off Main Menu Map Page display options Page Navigation Page Map Page Background map vs. MapCreate map content Pop-up Minor Interstate Major Street Cursor line StreetsMarker School POI Restaurant Position, distanceResize Window command Page Basic GPS Quick Reference Find Your Current Position Moving Around the Map Zoom & Cursor Arrow KeysSearching Selecting Any Map Item With the CursorAfter the unit has acquired a position, press WPT↓ to POI Set a Waypoint Create Waypoint at Current Position To create and save a WaypointCreate Waypoint on Map StepCreate Waypoint by Entering a Position Navigate To a Waypoint Navigate Back to MOB Waypoint Set Man Overboard MOB WaypointNavigate to Cursor Position on Map 109 Creating and Saving a Trail Navigate to a Point of InterestDisplaying a Saved Trail Visible Active Symbol symbolTo Save a Trail To turn off trail display Navigating TrailsVisual Trailing Navigate a TrailPage Waypoint Symbol Track or compass heading indicator TrailAlarm Off course Trail IndicatorNavigate a Back Trail Transfer Custom Maps and GPS Data FilesCustom Maps GPS Data filesDataent Page Cancel Navigation Find Distance From Point to Point Find Distance Current Position to Another LocationCreate Icon on Map IconsCreate Icon at Current Position Delete an IconNavigate to an Icon RoutesPC-created Routes Create and Save a RouteRoutes Created in the Unit 123 Press ↓ to saved route nameENT Delete a RouteTo Delete All Routes at Once Highlight Saved Route NameENT↑ to NameENT Edit a Route NameEdit Route Waypoints Navigate a RouteNavigate a Route in Reverse Trails Waypoints UtilitiesTo delete a waypoint from the map To edit waypoint symbolEdit a Waypoint To edit waypoint name To edit waypoint positionSet a Waypoint by Average Position Selecting a WaypointSet a Waypoint by Projecting a Position To change alarm settings System & GPS SetupTo set Com Port Configuration Communications Port ConfigurationCheck MMC Files and Storage Space Configure Nmea Coordinate System Selection Press MENUMENU↓ to GPS SetupentMap Fix To setup Loran TDTo configure a map fix Customize Satellite Status Customize Navigation GPS SimulatorCustomize Map Simulating Trail or Route Navigation To get to the GPS SimulatorPress MENUMENU↓ to GPS Setupentent Hide GPS FeaturesInitialize GPS Map Data Map Auto ZoomEarth Map Detail Pop-up Map Information Map Datum SelectionDraw Map Boundaries Fill Water With WhiteTo change the Datum Map Detail Category DrawnTo get to Map Categories Drawn Map OrientationTrack Up mode, map shows N show which direction is north Nautical Chart Notes NauticPath USA Marine ChartsPort Information To view Chart Note informationPort Services icon Pop-up name box To view Port Services informationTidal Current Information To view Tidal Current information Tidal Current Station icon in animated mode Cursor linesCurrent Time Line Velocity ScaleTo select another date Cursor lines Tide Station Icon in ani Mated modeTide Information To view tide information Navionics ChartsCurrent Time Line Line Tide Table Height ScalePop-up Help To display a Navionics chartRequire Waas To reset unit to factory defaultsTo adjust the screens display mode To adjust the displays brightnessPress MENUMENU↓ to GPS SETUPENT↓ to Require Waasent Screen Contrast and BrightnessSet Language Show Waas AlarmSet Local Time To select a different languagePress MENUMENU↓ to GPS SETUPENT↓ to Show Waas Alarm To turn off Waas alarmSoftware Version Information Sounds Menu To adjust Sounds and Alarm StylesTrack Smoothing Trail Options Update Trail OptionGeneral Trail Options 158 Trail Update RateDelete Trail TransparencyNew Trail Trail Visibility and Other Trail OptionsUnits of Measure To adjust Transparency levelTo change the units Searching Find Addresses 163 Find Any Item Selected by Map Cursor Find Interstate Highway Exits NameENT Find Map Places or Points of Interest POI Find by nearest option left with resulting POI list right Find a Street Find Streets or IntersectionsFind an Intersection 171 Find Waypoints Page 174 Supplemental Material Datums Used by This Unit 176 177 178 FCC Compliance 180 181 182 Eagle Databases License Agreement Databases Limited Warranty Eagle Electronics Full ONE-YEAR Warranty Not toll-free How to Obtain Service…Accessory Ordering Information for all countries Visit our web site
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640c, 640C, 640cDF specifications

Eagle Electronics has made a significant mark in the world of marine electronics with its innovative and reliable products, notably the Eagle Electronics 640C, 640cDF, and the 640c models. These devices are designed for anglers and navigators who seek advanced functionality combined with user-friendly operation.

The Eagle Electronics 640C is a high-performance fish finder that is primarily admired for its vibrant display and precise mapping capabilities. Equipped with a 640x480 pixel, full-color LCD screen, it provides crystal-clear visibility even in bright sunlight. This device uses advanced sonar technology to offer detailed underwater images, allowing users to locate fish with remarkable accuracy. The high-resolution graphics enhance the experience while providing an intuitive interface for easy navigation through its various features.

The 640cDF, a variant of the 640C, elevates the standard fish finder experience by incorporating dual-frequency sonar capabilities. This model operates on both 200 kHz and 83 kHz frequencies, allowing users to switch between narrow and wide beams based on their fishing needs. The dual-frequency technology provides a more comprehensive view of the underwater environment, making it easier to identify different types of fish and underwater structures. Additionally, the 640cDF boasts temperature sensing capabilities, giving anglers valuable data regarding water conditions that can influence fish behavior.

All models in the Eagle 640 series feature built-in GPS navigation. The integrated GPS provides a reliable mapping system that allows users to mark waypoints and create routes, significantly improving navigation efficiency. This technology is vital for those who engage in long-distance fishing trips or travel in unfamiliar waters. The GPS functionality, combined with the sonar capabilities, makes these devices essential tools for successful fishing excursions.

Furthermore, the Eagle 640 series devices come equipped with customizable display options, allowing users to tailor the information presented based on their preferences. The intuitive menu system simplifies the navigation of the device's various features, empowering users to quickly access critical data without unnecessary complications.

In summary, the Eagle Electronics 640C, 640cDF, and the 640c represent a blend of cutting-edge technology and user-centric design in the marine electronics space. With features such as high-resolution displays, dual-frequency sonar, built-in GPS navigation, and customizable settings, these devices enhance the fishing experience, making them invaluable assets for anglers and navigators alike.
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