Garmin 02546 Users Manual

GMR

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.

A02546

• 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.

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 [phone].

Tools Needed

• #2 Phillips screwdriver

• 5 mm hex wrench

• 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

Installation Procedures

Preparing the Radar Mounting Surface

Before you can mount the radar, you must choose a suitable
mounting location (Mounting Considerations, page 1).

Secure the included mounting template to the surface at the

1

mounting location, along the bow-stern axis, as indicated on
the template.

Drill the mounting holes using a 15 mm (19/32 in.) drill bit.

2

If you need to run the power and network cables through the

3

mounting surface, select a location along the center channel
indicated on the template, drill a pass-through hole for the
cables using a 25 mm (1 in.) drill bit, and route the cables
through the surface (optional) (Cable Considerations,

page 2).

Remove the mounting template from the surface.

4

Mounting the Radar

Before you can mount the radar, you must select a mounting
location (Mounting Considerations, page 1) and prepare the
mounting surface (Preparing the Radar Mounting Surface,

page 2).

From under the mounting surface, place the included plastic

1

shoulder washers À into the holes you drilled when preparing
the mounting surface.

Place the radar onto the mounting surface, aligning the holes

2

on the base of the radar with the holes in the shoulder
washers.

Insert the threaded rods Á through the mounting surface and

3

into the radar base, and tighten them using a 5 mm hex
wrench.

To avoid damaging the pedestal, you should stop tightening
the threaded rods when they no longer turn easily.

Place the flat washers Â, lock washers Ã, and hex nuts Ä on

4

the threaded rods.
Tighten the hex nuts to a torque of 14.7 N-m (11 lbf-ft.) to

5

securely fasten the radar to the surface without damaging the
radar or the mounting hardware.

Installing the Antenna

Before you can install the antenna on the radar, you must
securely mount the pedestal (Mounting the Radar, page 2).

Remove the protective cover from the waveguide on the top

1

of the pedestal À.

Align the waveguide on the pedestal with the socket on the

2

bottom of the antenna Á, and slide the antenna onto the
pedestal.

Secure the antenna to the pedestal by tightening the captive

3

hex bolts under the antenna arm.
Tighten the hex bolts to a torque of 7.9 N-m (6 lbf-ft.) to

4

fasten the antenna to the pedestal without damaging the
antenna or the mounting hardware.

Cable Considerations

It may be necessary to drill 25 mm (1 in.) holes for routing the
power or network cables.

• When routing both the power and network cables through the
same hole, you must route the network cable before the
power cable.

• You must apply marine sealant to the hole after the cables
are in place to ensure a waterproof seal.

If the routing hole must be made in a visible location, decorative
cable grommets can be purchased from Garmin or a Garmin
dealer (optional).

• You must drill a 31.7 mm (11/4 in.) hole to use the optional
grommet.

• If needed, the grommet can be trimmed to enable you to
route both the network and the power cable through the
same hole.

• The optional grommet does NOT provide a waterproof seal.
You must apply marine sealant to the grommet after the
cables are in place ensure a waterproof seal.

When installing the network and power cables, you should
observe these considerations.

• Cutting the Garmin Marine Network cable is not
recommended, but a field install kit can be purchased from
Garmin or a
necessary.

• To ensure safety, appropriate tie-wraps, fasteners, and
sealant should be used to secure the cable along the route
and through any bulkheads or the deck.

• Cables should not be run near moving objects and high-heat
sources or through doorways and bilges.

• To avoid interference with other equipment, network and
power cables should not be run next to or parallel to other
cables, such as radio antenna lines or power cables. If this is
not possible, the cables should be shielded with metal
conduit or a form of EMI shielding.

• The power cable should be installed as close to the battery
source as possible.
◦ If it is necessary to extend the power cable, the

appropriate gauge of wire must be used (Power Cable

Extensions, page 3).

◦ Incorrectly extended runs of cable may cause the radar to

malfunction due to insufficient power transmission.

Garmin dealer if cutting the network cable is

2