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NorthStar Navigation NorthStar 491 manual 957/958 echo sounder menu structure

Models: NorthStar 491

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		STAR key
		Auto
	ECHO	Picture
	ECHO	Frequency
	SCREEN	Frequency
	SCREEN	Zoom
		Zoom
		Depth
		More
	Depth settings		Picture settings
			Gain
More settings		Shift	Clutter
Alarms		Range	Noise Limiter
Alarms			Hue
Advance Speed			Hue
Advance Speed		Bottom box	Signal level
Video		Bottom box	Signal level
Video		Return	Return
A-Scope		Return	Return
A-Scope
Data
Return
Data on-screen	Video setup		Alarm settings
Temp box		Video on	Fish alarm
Temp graph			Bottom alarm
Bottom box			Temp alarm
Speed
Return		Return	Return

Figure 5: 957/958 echo sounder menu structure

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491 Echo Sounder Operations Manual

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NorthStar Navigation NorthStar 491 manual 957/958 echo sounder menu structure

Contents

Northstar Echo Sounder Contents Reviewing past echoes using SoundTrac Troubleshooting 491 OperationsPage 1Welcome Organization Using this manualWelcome to the Northstar Conventions Hearing from you Service and repairTechnical support How echo sounding works 961/962 echo sounder system components Using 491 with the 961/962 Powering the 491 on and offSetting up Using the 491 with the 957/958 Press the Port Setup Options key961/962 echo sounder menu structure 957/958 echo sounder menu structure 2Quick Start Using the Echo Sounder Displaying the echo sounder’s picture Illustrated Echo screenIllustrated Soundtrac screen Chart Overlay screen Using demo modeAt the Chart Overlay Selection window, press Echo sounding Depth and temperatureIntroducing the displayed information Navigation Status tabsUsing automatic mode Cruising or ﬁshing50 kHz 200 kHz Manually overriding automatic modeChanging the frequency of echoes Echo screen with both frequencies displayed Choosing the zoom scale Choosing a zoom modeZooming in and out Using bottom zoom Using bottom lock zoomUsing bottom lock/ center zoom Setup functions Accessing the setup screenEntering numerical values Changing the depth units Changing the temperature graph’s units and scaleTransducer depth Number of special waypointsSpeed and temperature sensor setup 961/962 sensor setup screen957958/ sensor setup screen 3Adjusting the Echo Sounder Picture Adjusting the gain strong echoes Picture menuAdjusting the clutter weak echoes Gain windowAdjusting the signal level weak echoes Clutter windowSuppressing interference the noise limiter Selecting the color bar hue and white level Understanding the color barSetting the white level Hue and white level windowEcho Sounder Operations Manual 4Understanding Depth Settings Viewing the depth marker Changing the depth settingsViewing the seabed depth Setting the picture’s shift starting depth Shift windowSetting the picture’s range Range window Echo Sounder Operations Manual 5Other Functions Using the More key Using the More key Changing the advance speedDisplaying the A-scope Scope on single-frequency echo screenScope on dual-frequency echo screen Setting the Echo screen dataUsing the A-scope with dual frequencies Bottom depth box Temperature box Echo screen data selectionsSpeed through the water Temperature graphIntroducing snapshots Taking and storing a snapshotArchiving and restoring a snapshot with a ﬂoppy disk Snapshot screen 961/962 onlyArchiving and restoring snapshots with a Zip disk Archiving snapshots screen 961/962 onlySetting up the video image overlay Echo Sounder Operations Manual 6Reviewing past echoes using SoundTrac Viewing past echoes using SoundTrac SoundTrac screenMarking ﬁsh as waypoints Navigating to a past echo positionGoing directly to a past echo position Selected Cursor Position window appears7Setting the Alarms Understanding the alarms Setting the ﬁsh alarmSetting the upper and lower marker depths Fish alarm windowAlarm Setting the bottom alarmSetting inside or outside ﬁsh markers Turning the ﬁsh alarm on and offSetting the bottom level Bottom alarm windowTemperature alarm window Setting the temperature alarmTurning the bottom alarm on and off Turning the temperature alarm on and off Upper limit window is highlighted in blackWhen the temperature alarm sounds, an alert message is 8Troubleshooting 491 Operations Troubleshooting the echo sounder Checking the transducerTroubleshooting the echo sounder No echoes displayed when Star key is pressedChecking the transducer OFFManufacturer Model Power Northstar P/N Maintaining a transducerA491 Features and Speciﬁcations Performance characteristicsScreen notations Physical characteristicsEnvironmental characteristics InterfacingManual controls ON/OFFEcho Sounder Operations Manual Glossary Echo Sounder Operations Manual