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Garmin GPSMAP 420s Owner's Manual - Page 51

Using Sonar, Understanding the Full Screen - chartplotter fishfinder

UPC - 753759065799

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Using Sonar When connected to a transducer, the following chartplotters can be used as fishfinders: GPSMAP 420s GPSMAP 421s GPSMAP 520s GPSMAP 521s GPSMAP 550s GPSMAP 551s GPSMAP 450s GPSMAP 451s GPSMAP 525s GPSMAP 526s GPSMAP 555s GPSMAP 556s Understanding the Full Screen Select the Full Screen option to view a full-screen graph of the transducer's sonar readings. From the Home screen, select Sonar > Full Screen. Depth Temperature Speed Suspended targets Transducer frequency Full Screen Using Sonar Range GPSMAP 400/500 Series Owner's Manual 45

Section	Page
Introduction	3
Tips and Shortcuts	3
Manual Conventions	3
Quick Links	3
Declaration of Conformity (DoC)	6
Product Registration	6
Contact Garmin	6
Getting Started	7
Unit Overview	7
Turning the Unit On or Off	9
Initializing Unit Settings	9
Adjusting the Backlight	10
Using the Keypad	11
Acquiring GPS Satellite Signals	11
Using Simulator Mode	12
Viewing System Information	12
Restoring the Original Factory Settings	12
Inserting and Removing SD Cards	12
Understanding the Home Screen	13
Using Charts	14
Using the Navigation Chart	14
Changing the Navigation Chart Settings	18
Using the Split Navigation Chart	20
Using Perspective 3D	21
Using Mariner’s Eye 3D	21
Using Fish Eye 3D	23
Using Fishing Charts	24
Enabling High Resolution Satellite Imagery	25
Viewing Aerial Photos	26
Viewing Current-station Information	26
Detailed Road and POI Data	27
Using Automatic Guidance	27
Using the Chart/Sonar Screen	27
Where To?	28
Navigating to a Destination	28
Creating and Using Waypoints	30
Creating and Using Routes	31
Using Tracks	32
Using BlueChart g2 Vision	34
Navigating with a Garmin Autopilot	35
Viewing Information	36
Viewing a Compass	36
Viewing Numbers	36
Viewing Trip Information	37
Viewing Fuel Gauges	37
Viewing Tide-station Information	38
Viewing Current Information	38
Viewing User Data	39
Viewing Other Vessels	41
Configuring the Chartplotter	43
Configuring System Settings	43
Configuring Units of Measure	43
Changing the System Language	44
Configuring Navigation Preferences	44
Configuring Communications Settings	46
Setting Alarms	47
Setting the Total Fuel Onboard Alarm	48
Configuring My Boat	49
Configuring Other Vessels	50
Using Sonar	51
Understanding the Full Screen	51
Understanding the Split Frequency Screen	52
Understanding The Split Zoom Screen	52
Understanding the Temp Log Screen	53
Setting Up Sonar	53
Advanced Sonar Settings	54
Digital Selective Calling (DSC)	56
Using the Chartplotter with a VHF Radio	56
Adding a DSC Contact	57
Viewing the DSC List	57
Receiving Distress Calls	57
Man-Overboard Distress Calls Initiated from a VHF Radio	58
Man-Overboard Distress Calls Initiated from the Chartplotter	58
Position Tracking	58
Placing an Individual Routine Call	59
Calling an AIS Target	60
Appendix	61
Specifications	61
Alarms and Messages	63
Capturing Screenshots	66
Caring for the Unit	66
Software License Agreement	67