Humminbird 737 GPS manual Surface Clutter, Noise Filter, Max Depth

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Surface Clutter

(Advanced)

Surface Clutter adjusts the filter that removes surface clutter noise caused by algae and aeration. The lower the setting, the less surface clutter will be displayed. The Surface Clutter menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).

Surface

Clutter

To change the Surface Clutter setting:

1.Make sure you are in Advanced User Mode, then highlight Surface Clutter on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Surface Clutter setting. (Low = 1 to High = 10, Default = 5)

Noise Filter

(Advanced)

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 Noise Filter menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).

NOTE: The Off setting removes all filtering; Low, Medium and High settings add progressive filtering of the sonar returns. In some deep water situations, the High setting may actually hinder your unit’s ability to find the bottom.

To change the Noise Filter setting:

1.Make sure you are in Advanced User Mode, then highlight Noise Filter on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Noise Filter setting. (Off, Low, Medium, High1, High2, High3, Default = Low)

Max Depth

(Advanced)

Max Depth adjusts the maximum depth of operation. The performance of your Fishing System can be tuned to the maximum depth you will be fishing in by setting the Max Depth. When a maximum depth is set, your Fishing System will not attempt to acquire sonar data below that depth, thus increasing overall performance. When Max Depth is set to Auto, the Fishing System will acquire bottom readings as needed (within the capacity of the unit). If the bottom is deeper than the Max Depth setting, the digital depth readout will flash, indicating that the Fishing System cannot locate the bottom. The Max Depth menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).

To change the Max Depth setting:

1.Make sure you are in Advanced User Mode, then highlight Max Depth on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Max Depth setting. (AUTO, 10 to 1500 feet, 3 to 500 meters [International Models only], Default = AUTO)

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Contents Atic Thank You Table of ContentsKey Functions Views Menu Tab Accessories Menu Tab How Sonar Works Peak to Peak measures power output at the highest pointsWith optional-purchase WideSide transducer QuadraBeam SonarDualBeam Plus Sonar WideSide SonarWith optional-purchase GPS Receiver Software UpdatesHow GPS and Cartography Work Multi-Media Card MMC/SD SlotSoft Bottom RTS Real Time Sonar Window 83 kHz, Wide Beam Hollow Fish SymbolWhat’s On the Display Sonar views ViewsSonar View Freeze Frame Understanding Sonar HistoryReal Time Sonar RTS Window Bottom PresentationSonar Zoom View Sonar Zoom ViewBig Digits View 200/83 kHz Split Sonar View 200/83 kHz Split Sonar ViewBig Digits View Circular Flasher ViewScreen Capture View Screen Snapshot ViewSide Beam View Making a Screen SnapshotBird’s Eye View WideSide ViewDepth Chart View without Active CursorChart View with Active Cursor Combo ViewWaypoints, Routes and Tracks Viewing CartographySave, Edit, or Delete a Waypoint Add a Waypoint Target or Trolling Grid Chart View with GridInfo Key POWER/LIGHT KeyKey Functions View KeyGoto Key Accessory BusWAY Cursor Control Key Mark KeyPresence or absence of a transducer Powering Up the UnitMenu System Simulator Start-Up Options MenuNormal Operation System StatusGPS Diagnostic View Accessory TestExit PC Connect mode by powering the Fishing System off WideSide transducer WideSide view only To adjust the SideSonar X-PressTMMenu SideUpper Range To adjust the SensitivityTo adjust the Upper Range SensitivitySide Beam Range Chart SpeedLower Range Bottom Lock Cancel NavigationBottom View Bottom RangeTo view the Waypoint Name Submenu Navigation X-PressTM MenuWaypoint Name Only with an active cursor on a waypointSave Current Route Cursor to WaypointSave Current Track Clear Current TrackSonar Window Remove TargetRemove Grid Sonar Menu Tab Screen Snapshot X-Press TM MenuDelete Image Delete All ImagesHighlight Beam Select on the Sonar main menu Beam SelectFish ID+TM To use Beam SelectAdvanced Fish ID SensitivityZoom Width KHz SensitivityAdvanced with WideSide transducer KHz BalanceWideSide Sensitivity Depth LinesMax Depth Surface ClutterNoise Filter Navigation Menu Tab To change the Water Type settingWater Type Transducer SelectWaypoints Current TrackSaved Tracks Grid Rotation Chart OrientationRoutes North ReferenceExport All Nav Data Track Min DistanceMap Datum Course Projection LineWith optional-purchase GPS Receiver only Chart Menu TabChart Detail Level Map BordersSet Map Offset Lat/Lon GridSpot Soundings Set Simulation PositionTo change the Depth Alarm setting Alarms Menu TabDepth Alarm Fish ID AlarmArrival Alarm Low Battery AlarmTemp Alarm Off Course AlarmTo change the Drift Alarm setting Drift AlarmAlarm Tone Setup Menu TabUnits Distance User ModeUnits Depth Units TempAdvanced, Sonar view only Triplog ResetRestore Defaults Select ReadoutsPosition Format Depth OffsetTemp Offset Speed CalibrationSonar Time FormatDate Format Nmea OutputTo Change the View Status of Any View Accessories Menu TabUsing Screen Snapshot Views Menu TabTo view screen snapshots TroubleshootingTo make a screen snapshot Screen Snapshot must be enabled Finding the Cause of Noise Display ProblemsSpecifications Series Fishing System AccessoriesSonar Terms Glossary100 102 Receiver See Transmitter104 GPS & Navigation Terms 108 Contact Humminbird
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