Garmin echoMAP CHIRP 73cv Owner's Manual

You can create boundary areas, lines, and circles using the 

map. You can also convert saved tracks and routes into 

boundary lines. You can create a boundary area using 

waypoints by creating a route from the waypoints, and 

converting the route into a boundary line.
You can select a boundary to act as the active boundary. You 

can add the active boundary data to the data fields on the chart.

Select User Data > Boundaries > New Boundary.

Select a boundary shape.

Follow the on-screen instructions.

Select User Data > Boundaries > Display Options.
Distance/Bearing: Allows you to hide or display the bearing and 

distance to your destination for the active boundary.

Chart Display: Allows you to hide or display boundaries on the 

chart.

Color: Sets the color of boundaries on the chart.

Before you can convert a route to a boundary, you must create 

and save at least one route (

).

Select User Data > Routes & Auto Guidance Paths.

Select a route.

Select Edit Route > Save as Boundary.

Before you can convert a track to a boundary, you must record 

and save at least one track (

).

Select User Data > Tracks.

Select a track.

Select Edit Track > Save as Boundary.

Select User Data > Boundaries.

Select a boundary.

Select Edit Boundary.

Select an option:
• To edit the appearance of the boundary on the chart, 

select Display Options.

• To change the boundary lines or name, select Edit 

Boundary.

• To edit the boundary alarm, select Alarm.

Boundary alarms alert you when you are within a specified 

distance of a set boundary.

Select User Data > Boundaries.

Select a boundary.

Select Alarm > On.

Enter a distance.

Select an option.
• To set an alarm to sound when your boat is a specified 

distance from the boundary of an area that you want to 

stay within, select Exiting.

• To set an alarm to sound when your boat is a specified 

distance from the boundary of an area that you want to 

avoid, select Entering.

Select User Data > Boundaries.

Select a boundary.

Select Edit Boundary > Delete.

When properly connected to an optional Garmin sounder 

module and a transducer, your compatible chartplotter can be 

used as a fishfinder. Different sonar views can help you view the 

fish in the area.
The adjustments you can make to each sonar view vary 

depending on the view you are in and the chartplotter model, 

sounder module, and transducer you have connected.
For more information about which transducer is best for your 

needs, go to 

From a sonar screen, select MENU > Transmit.

From a combination screen with sonar, select MENU > Edit 

Combination.

Select the window to change.

Select a sonar view.

There are several full-screen views available, depending on the 

equipment connected.
The full-screen Traditional sonar view show a large image of the 

sonar readings from a transducer. The range scale along the 

right side of the screen shows the depth of detected objects as 

the screen scrolls from the right to the left.

À

Depth information

Á

Suspended targets or fish

Â

Bottom of the body of water

In the split-frequency sonar view, one side of the screen shows 

a full-view graph of high frequency sonar data, and the other 

side of the screen shows a full-view graph of lower frequency 

sonar data.
NOTE: The split-frequency sonar view requires the use of a 

dual-frequency transducer.

The split-zoom sonar view shows a full-view graph of sonar 

readings, and a magnified portion of that graph, on the same 

screen.

NOTE: To receive Garmin ClearVü scanning sonar, you need a 

compatible chartplotter or fishfinder and a compatible 

transducer. For information about compatible transducers, go to 

Garmin ClearVü high-frequency sonar provides a detailed 

picture of the fishing environment around the boat in a detailed 

representation of structures the boat is passing over.
Traditional transducers emit a conical beam. The Garmin 

ClearVü scanning sonar technology emits two narrow beams, 

Sonar

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