Garmin echoMAP CHIRP 74sv Owner's Manual

a higher number. For laylines that display a higher sensitivity 

to changes in the boat's heading or true wind angle, enter a 

lower number.

You can enter a keel offset to compensate the surface reading 

for the depth of a keel, making it possible to measure depth from 

the bottom of the keel instead of from the transducer location. 

Enter a positive number to offset for a keel. You can enter a 

negative number to compensate for a large vessel that may 

draw several feet of water.

Complete an action, based on the location of the transducer:
• If the transducer is installed at the water line 

À

, measure 

the distance from the transducer location to the keel of the 

boat. Enter this value in steps 3 and 4 as a positive 

number.

• If the transducer is installed at the bottom of the keel 

Á

, 

measure the distance from the transducer to the water 

line. Enter this value in steps 3 and 4 as a negative 

number.

Select Settings > My Vessel > Keel Offset.

Select   or   based on the location of the transducer.

Enter the distance measured in step 1.

When engaged, the autopilot controls only the rudder. You and 

your crew remain responsible for the sails while the autopilot is 

engaged.

In addition to heading hold, you can use the autopilot to maintain 

a wind hold. You can also use the autopilot to control the rudder 

while tacking and gybing.

You can set the autopilot to maintain a specific bearing relative 

to the current wind angle. Your device must be connected to a 

NMEA 2000 or NMEA

®

 0183 compatible wind sensor to perform 

a wind hold or a wind-based tack or gybe.

Before you can enable the wind hold type, you must connect a 

NMEA 2000 or NMEA 0183 wind sensor to the autopilot.
For advanced autopilot configuration, see the installation 

instructions included with your autopilot.

From the autopilot screen, select MENU > Autopilot Setup > 

Wind Hold Type.

Select Apparent or True.

Before you can enable the wind hold type, you must connect a 

NMEA 2000 or NMEA 0183 wind sensor to the autopilot.

When the autopilot is in standby mode, select Wind Hold.

Before you can enable the wind hold type, you must connect a 

NMEA 2000 or NMEA 0183 wind sensor to the autopilot.

With heading hold engaged, select MENU > Wind Hold.

You can adjust the wind hold angle on the autopilot when wind 

hold is engaged.
• To adjust the wind hold angle in increments of 1°, select   or 

.

• To adjust the wind hold angle in increments of 10°, hold   or 

.

You can set the autopilot to perform a tack or gybe while 

heading hold or wind hold is engaged.

).

Select MENU > Tack/Gybe.

Select a direction.
The autopilot steers your boat through a tack or gybe.

Before you can engage wind hold, you must have a wind sensor 

installed.

Engage wind hold (

Select MENU > Tack/Gybe.

Select Tack or Gybe.
The autopilot steers your boat through a tack or gybe, and 

information about the progress of the tack or gybe appears 

on the screen.

The tack and gybe delay allows you to delay steering a tack and 

gybe after you initiate the maneuver.

From the autopilot screen, select MENU > Autopilot Setup > 

Sailing Setup > Tack/Gybe Delay.

Select the length of the delay.

If necessary, select Done.

NOTE: The gybe inhibitor does not prevent you from manually 

performing a gybe using the helm or step steering.
The gybe inhibitor prevents the autopilot from performing a 

gybe.

From the autopilot screen, select MENU > Autopilot Setup > 

Sailing Setup > Gybe Inhibitor.

Select Enabled.

The gauges and graphs provide various information about the 

engine and environment. To view the information, a compatible 

transducer or sensor must be connected to the network.

You can view information about your bearing, heading, and 

route using the compass.

Select Gauges > Compass.

Gauges and Graphs

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