Garmin echoMAP CHIRP 74sv Owner's Manual

You can control whether a navigation inset appears on some 

chart views. The navigation inset is shown only when the boat is 

navigating to a destination.

From a chart or 3D chart view, select MENU.

If necessary, select Chart Setup.

Select Overlay Numbers > Nav. Inset > Auto.

Select Navigation Inset Setup.

Complete an action:
• To show waypoint velocity made good (VMG) when 

navigating a route with more than one leg, select Route 

Leg Info > On.

• To show next-turn data based on distance, select Next 

Turn > Distance.

• To show next-turn data based on time, select Next Turn > 

Time.

• To indicate how the destination data appears, select 

Destination, and select an option.

NOTE: These options require connected accessories, such as 

an AIS receiver or VHF radio.
From a chart or 3D chart view, select MENU > Other Vessels.
AIS List: Shows the AIS list (

DSC List: Shows the DSC list (

).

AIS Display Setup: See 

.

DSC Trails: Shows the tracks of DSC vessels, and selects the 

length of the track that appears using a trail.

AIS Alarm: Sets the safe-zone collision alarm (

).

NOTE: AIS requires the use of an external AIS device and 

active transponder signals from other vessels.
From a chart or 3D chart view, select MENU > Other Vessels > 

AIS Display Setup.
AIS Dis. Range: Indicates the distance from your location within 

which AIS vessels appear.

Details: Shows details about AIS-activated vessels.
Proj. Heading: Sets the projected heading time for AIS-

activated vessels.

Trails: Shows the tracks of AIS vessels, and select the length of 

the track that appears using a trail.

NOTE: This feature is available with premium charts, in some 

areas.
From the Fish Eye 3D chart view, select MENU.
View: Sets the perspective of the 3D chart view.
Tracks: Shows tracks.
Sonar Cone: Shows a cone that indicates the area covered by 

the transducer.

Fish Symbols: Shows suspended targets.

From a chart, 3D chart view, the Radar screen, or a 

Combinations screen, select MENU > Overlay Numbers.
From a chart, 3D chart view, or a Combinations screen, select 

MENU > Overlay Numbers.
Edit Layout: Sets the layout of the data overlay, or data fields. 

You can select the data to be shown within each data field.

Nav. Inset: Shows the navigation inset when the vessel is 

navigating to a destination.

Navigation Inset Setup: Allows you to configure the navigation 

inset to show Route Leg Info, and to control when the inset 

appears before a turn or destination.

Compass Tape: Shows the compass tape data bar when the 

vessel is navigating to a destination.

You can change the data shown in the overlay numbers 

displayed on the charts and other screens.

From a screen that supports overlay numbers, select MENU.

If necessary, select Chart Setup.

Select Overlay Numbers > Edit Layout.

Select a layout.

Select a data field.

Select the type of data shown in the field.
Available data options vary based on the chartplotter.

The Garmin Quickdraw Contours mapping feature allows users 

to generate maps. Garmin makes no representations about the 

accuracy, reliability, completeness or timeliness of the maps 

generated by third parties. Any use or reliance on the maps 

generated by third parties is at your own risk.
The Garmin Quickdraw Contours mapping feature allows you to 

instantly create maps with contours and depth labels for any 

body of water.
When Garmin Quickdraw Contours records data, a colored 

circle surrounds the vessel icon. This circle represents the 

approximate area of the map that is scanned by each pass.

A green circle indicates good depth and GPS position, and a 

speed under 10 mph. A yellow circle indicates good depth and 

GPS position, and a speed between 10 and 20 mph. A red circle 

indicates poor depth or GPS position, and a speed above 20 

mph.
You can view Garmin Quickdraw Contours in a combination 

screen or as a single view on the map.
The amount of saved data depends on the size of your memory 

card, your sonar source, and the speed of your boat as you 

record data. You can record longer when you use a single-beam 

sonar. It is estimated that you might be able to record about 

1,500 hours of data onto a 2 GB memory card.
When you record data on a memory card in your chartplotter, 

the new data is added to your existing Garmin Quickdraw 

Contours map, and is saved on the memory card. When you 

insert a new memory card, the existing data does not transfer 

onto the new card.

8

Garmin Quickdraw

™

 Contours Mapping