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GMR 

A02546

 4/6 

Installation Instructions

Important Safety Information

 WARNING

See the 

Important Safety and Product Information

 guide in the 

product box for product warnings and other important 

information.
The radar transmits electromagnetic energy. Ensure that the 

radar is installed according to the recommendations in these 

instructions and that all personnel are clear of the path of the 

radar beam before transmitting. When properly installed and 

operated, the use of this radar conforms to the requirements of 

ANSI/IEEE C95.1-1992 Standard for Safety Levels with Respect 

to Human Exposure to Radio Frequency Electromagnetic Fields.
When the radar is transmitting, do not look directly at the 

antenna at close range; eyes are the most sensitive part of the 

body to electromagnetic energy.
When connecting the power cable, do not remove the in-line 

fuse holder. To prevent the possibility of injury or product 

damage caused by fire or overheating, the appropriate fuse 

must be in place as indicated in the product specifications. In 

addition, connecting the power cable without the appropriate 

fuse in place voids the product warranty.

 CAUTION

This device should be used only as a navigational aid. Do not 

attempt to use the device for any purpose requiring precise 

measurement of direction, distance, location, or topography.
Always wear safety goggles, ear protection, and a dust mask 

when drilling, cutting, or sanding.

NOTICE

When drilling or cutting, always check what is on the opposite 

side of the surface.

Registering Your Device

Help us better support you by completing our online registration 

today.
• Go to 

my.garmin.com

.

• Keep the original sales receipt, or a photocopy, in a safe

place.

Contacting Garmin

®

 Product Support

• Go to 

www.garmin.com/support

 for in-country support

information.

• In the USA, call 913-397-8200 or 1-800-800-1020.
• In the UK, call 0808 238 0000.
• In Europe, call +44 (0) 870 850 1241.

Tools Needed

• #2 Phillips screwdriver
• 5 mm hex wrench

• Drill
• 15.0 mm (

19

/

32

 in.) drill bit

• 32 mm (1 

1

/

4

 in.) drill bit (optional)

• 17 mm (

21

/

32

 in.) wrench and torque wrench

• 3.31 mm² (12 AWG) copper wire to ground the radar housing

(the length depends on the distance from the radar to

ground)

• Marine sealant

Mounting Considerations

When selecting a mounting location, observe these 

considerations.

• It is highly recommended that the device is mounted out of

range of people, with the vertical beam width above head

height. To avoid exposure to harmful radio frequency (RF)

levels, the device should not be mounted closer to people

than the maximum safe distance value listed in the product

specifications.

• The device should be mounted high above the ship’s keel

line with minimal blockage of the radar beam. Obstructions

may cause blind and shadow sectors, or generate false

echoes. The higher the installation position, the farther the

radar can detect targets.

• The device should be mounted on a flat surface or a platform

that is parallel to the vessel's water line and is sturdy enough

to support the device's weight. The weight for each model is

listed in the product specifications.

• The radar beam spreads vertically 11.5° above and

11.5° below 

À

 the radar's radiating element. On vessels with

higher bow angles at cruise speed, the installation angle can

be lowered to point the beam slightly downward to the

waterline while at rest. Shims can be used if necessary.

• The device should be mounted away from heat sources, such

as smoke stacks and lights.

• The device should be mounted at a different level than

horizontal spreaders and mast crosstrees.

• To avoid interference with a magnetic compass, the device

should not be mounted closer to a compass than the

compass-safe distance value listed in the product

specifications.

• Other electronics and cables should be mounted more than

2 m (6.5 ft.) from the radar beam path.

• GPS antennas should be either above or below the radar

beam path.

• The device should be mounted at least 1 m (40 in.) from any

transmitting equipment.

• The device should be mounted at least 1 m (40 in.) away

from cables carrying radio signals such as VHF radios,

cables, and antennas.

• The device should be mounted at least 2 m (6.5 ft.) away

from Single Side Band (SSB) radios.

February 2016

Printed in Taiwan

190-01967-91_01

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