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Garmin GHC 20 User Manual

Garmin GHC 20
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1
Select Menu > GPS Steering > Cloverleaf > Length.
2
Select or to set the range.
3
Select Done.
Following the Cloverleaf Pattern
1
Select Menu > GPS Steering > Cloverleaf > Engage.
2
Select an option:
To begin a starboard turn, select .
To begin a port turn, select .
Search Pattern
The search pattern steers the boat in increasingly larger circles outward from the
active waypoint, forming a spiral pattern. When you begin the search pattern, the
autopilot drives the boat to the active waypoint and begins the pattern.
Setting Up the Search Pattern
You can adjust the distance between each circle in the spiral. The default
distance between circles in 50 ft. (20 m).
1
Select Menu > GPS Steering > Search > Spacing.
2
Select or to set the distance.
3
Select Done.
Following the Search Pattern
1
Select Menu > GPS Steering > Search > Engage .
2
Select an option:
To begin a starboard turn, select .
To begin a port turn, select .
Sailboat Autopilot Operation
CAUTION
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.
Wind Hold
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.
Engaging Wind Hold
NOTE: You must have a wind sensor installed before you can engage wind
hold.
When the autopilot is in standby mode, select Wind Hold.
Engaging Wind Hold from Heading Hold
NOTE: You must have a wind sensor installed before you can engage wind
hold.
With heading hold engaged, select Menu > Wind Hold.
Adjusting the Wind Hold Angle with the Autopilot
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 <<10° <1° or 1°>
10°>>.
To adjust the wind hold angle in increments of 10°, hold <<10° <1° or 1°>
10°>>.
Sailboat Autopilot Operation 5
DRAFT

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Garmin GHC 20 Specifications

General IconGeneral
Resolution320 x 240 pixels
Water RatingIPX7
Weight9.5 oz (269 g)
Garmin Marine Network Ports1
Operating Temperature5°F to 158°F (-15°C to 70°C)
Display TypeQVGA
Mounting OptionsFlush
CompatibilityCompatible with other devices
Display Size4 inches diagonal
Power Consumption1.5 W max

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