KHz Sensitivity | Humminbird 917C, 957C instruction

83 kHz Sensitivity

(Advanced)

83 kHz Sensitivity changes the sensitivity of the 83 kHz beam. Increasing the 83 kHz Sensitivity will display additional weak returns and decreasing the 83 kHz Sensitivity will display fewer weak returns. The 83 kHz Sensitivity menu choice is only available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).

To set the 83 kHz Sensitivity:

1.Make sure you are in Advanced User Mode, then highlight 83 kHz Sensitivity on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to set the 83 kHz Sensitivity. (-10 to +10, Default = 0)

455 kHz Sensitivity

(Advanced, with QuadraBeam PLUS™ transducer,

optional-purchase for the 917)

455 kHz Sensitivity adjusts the sensitivity of the 455 kHz beam. Increasing the sensitivity will display additional weak returns and decreasing the sensitivity will display fewer weak returns. A QuadraBeam PLUS™ transducer must be attached to the Fishing System (included on the 957 and optional-purchase on the 917). The 455 kHz Sensitivity menu choice is available when Transducer Select is set to QuadraBeam (see Sonar Menu Tab: Transducer Select) and User Mode is set to Advanced (see Setup Menu Tab: User Mode).

NOTE: The 455 kHz Sensitivity requires the purchase of the QuadraBeam PLUS™ transducer.

You can visit our website at www.humminbird.com to order this accessory online or contact our Customer Resource Center at 1-800-633-1468.

NOTE: 455 kHz Sensitivity is particularly useful for adjusting the sensitivity of the 455 kHz sonar returns in the Side Beam View. The 455 kHz sensitivity can be adjusted without affecting the sensitivity of the 200 kHz returns shown in the 200 kHz sonar window.

To change the 455 kHz Sensitivity setting:

1.Make sure you have selected QuadraBeam Transducer and Advanced Mode and that the QuadraBeam PLUS™ transducer is connected, then highlight 455 kHz Sensitivity on the Sonar Main Menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the 455 kHz Sensitivity. (-10 to +10, Default = 0)

83

Image 91

Humminbird 917C, 957C manual KHz Sensitivity, To change the 455 kHz Sensitivity setting

Contents

Page Thank You Table of Contents Quad Layout Upper Range Delete Recording Start RecordingDelete Image Delete All Images Navigation Menu Tab Views Menu Tab Page How Sonar Works Series Introduction DualBeam Plus Sonar Peak to Peak measures power output at the highest points Universal Sonar QuadraBeam Plus SonarHow GPS and Cartography Work Page Installation Overview Software Updates Accessory BusMulti-Media Card MMC/SD Slot Basic installation tasks that you must perform include Control Head InstallationInstalling the GPS Receiver if included Washer Gimbal Knob Gimbal Bracket Gimbal Mounting the Control Head Mounting Screws Cables Routed Directly Beneath Mounting Bracket Cables Routed Behind Mounting Bracket Connecting the Control Head Power Cable to the Boat Transducer Installation Locating the transducer mounting location Transom Transducer Installation Preparing the Mounting Location To maintain the sonar signalPopping the transducer out of the water Assembling the Transducer and Initial Mounting Knuckle to form one continuous line on the assembly Inserting the Pivot Bolt Routing the Cable Adjusting the Initial Transducer Angle Screw Connecting the Cable Test and Finish the Installation Locate transducer mounting location Inside the Hull Transducer InstallationThickness, as well as the installation position and process Perform a trial installation Determine the transducer mounting location Trial installation Permanently mount the transducer Route the cable Are included with the bracket Trolling Motor Transducer Installation Trolling Motor Transducer Options GPS Receiver InstallationIf you have… Then use Follow these steps to stem mount the GPS receiver Stem Mounting with an Existing 1 14 Thread StemAbrasion No Access Under Mounting Location Access Under Mounting Location Finish Routing the Cable Check GPS Receiver Operation To test the installation Testing the System Installation Powering Up the Control Head Getting Started Using Your 900 Series Triplog What’s On the Sonar Display Real Time Sonar RTS Window Understanding Sonar HistoryBottom Presentation Key Functions POWER/LIGHT Key Menu Key View Key WAY Cursor Control Key View Preset keysExit Key Goto Key has multiple functions, depending on the situation Info KeyMark Key Goto Key Views Zoom +/- KeysViews and Readouts Sonar View Sonar View Sonar Zoom View Sonar Zoom View Split Sonar View Split Sonar View Snapshot and Recording View Page Recording Slider Bar Recording Playback Only with QuadraBeam Plus transducer Side Beam View 555 Bird’s Eye View Bird’s Eye View Chart/Bird’s Eye Combo View Chart/Bird’s Eye Combo View Chart/Chart Combo View Chart/Chart Combo View Chart View with Active Cursor Chart View Chart/Sonar Combo View Chart/Sonar Combo View Viewing Cartography Chart Orientation Navigation Waypoints, Routes and Tracks Save, Edit, or Delete a Waypoint Add a Waypoint Target or Trolling Grid Navigate to a Waypoint or Position Save, Edit or Delete a Route Edit, Delete or Hide Saved Tracks Save or Clear a Current Track MOB Navigation Man Overboard MOB Navigation Menu System Normal Simulator System Status Start-Up Options Menu System Status Exit Normal operation by powering your 900 Series offNormal Operation Simulator Self Test Accessory Test GPS Diagnostic View Active Side Sonar X-Press Menu Sensitivity Split Position Lower Range Upper Range Quad Layout Chart Speed Sonar Colors Cancel NavigationBottom Lock Bottom Range Navigation X-Press Menu Cursor to Waypoint Waypoint Name Skip Next Waypoint Save Current TrackClear Current Track Save Current Route Remove Grid Cancel MOB NavigationTo Cancel MOB Navigation Remove Target Most recently-created waypoint Stop Recording Start Recording Delete All Images Delete ImageTo delete an image Delete All Recordings Delete Recording Playback Speed Pings Per SecondTo specify playback speed Sonar Menu Tab Stop Playback Fish ID+ Beam Select Fish ID Sensitivity Zoom Width Bottom View KHz Sensitivity To change the 455 kHz Sensitivity setting Surface Clutter Depth Lines Max Depth Noise Filter Transducer Select Water TypeColor Bar Navigation Menu Tab Temperature Graph Saved Tracks Current Track Routes WaypointsWaypoints Submenu contains the following menu choices North Reference Trackpoint Interval Trolling Grid RotationTrack Min Distance Export All Nav Data Track Color RangeMap Datum Course Projection Line Delete All Nav Data Continuous Navigation ModeChart Menu Tab Continuous Navigation Mode allows you to Map Borders Chart Detail Level Shaded Depth Lat/Lon GridSpot Soundings Navaids on Birds Eye View Set Map Offset Set Simulation Position Clear Map Offset Alarms Menu Tab Fish ID Alarm Depth AlarmLow Battery Alarm Temp Alarm Aux Temp Alarm Arrival Alarm Off Course Alarm Alarm Tone Drift Alarm Units Depth Setup Menu TabUnits Temp Language User ModeUnits Distance Units Speed Select Readouts Triplog ResetRestore Defaults Off Triplog Position Voltage Aux. TemperaturePage Aux Temp Offset Depth OffsetTemp Offset Position Format Speed CalibrationLocal Time Zone Daylight Saving Time Date Format Time Format Nmea Output Digits Format Views Menu Tab SonarPage Using Screen Snapshot Accessories Menu Tab 113 Series Doesn’t Power Up Troubleshooting Control head loses power at high speeds Display Problems Finding the Cause of Noise Humminbird Service Policy Year Limited Warranty Returning Your Unit for Service Series include Series AccessoriesPage Specifications Sonar Terms Glossary 123 Glossary Receiver See Transmitter Glossary GPS & Navigation Terms Glossary Sonar Terms Glossary 129 Glossary Glossary Glossary Contact Humminbird