GMR
™
Fantom
™
18/24
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.
Opening the device may result in personal injury and/or damage
to the device. This device contains no user-serviceable parts,
and should be opened only by a Garmin
®
authorized service
technician. Any damage resulting from opening the unit by
anyone other than a Garmin authorized service technician will
not be covered by the Garmin warranty.
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.
Loading the New Software on a Memory Card
1
Insert a memory card into the card slot on the computer.
2
Go to www.garmin.com/support/software/marine.html.
3
Select Download next to GPSMAP Series with SD Card.
4
Read and agree to the terms.
5
Select Download.
6
Select Run.
7
Select the drive associated with the memory card, and select
Next > Finish.
Updating the Device Software
Before you can update the software, you must obtain a
software-update memory card or load the latest software onto a
memory card.
1
Turn on the chartplotter.
2
After the home screen appears, insert the memory card into
the card slot.
NOTE: In order for the software update instructions to
appear, the device must be fully booted before the card is
inserted.
3
Follow the on-screen instructions.
4
Wait several minutes while the software update process
completes.
5
When prompted, leave the memory card in place and restart
the chartplotter manually.
6
Remove the memory card.
NOTE: If the memory card is removed before the device
restarts fully, the software update is not complete.
Tools Needed
• Drill
• 9.5 mm (
3
/
8
in.) drill bit
• 32 mm (1
1
/
4
in.) drill bit (optional)
• 4 mm (
13
/
32
in.) hex wrench
• 13 mm (
1
/
2
in.) wrench and torque wrench
• Marine sealant
Mounting Considerations
To complete the installation, you need the appropriate fasteners,
tools, and mounts. These items are available at most marine
dealers.
• It is highly recommended that the device is mounted out of
range of personnel, with the horizontal 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 between the vessel and the radar
beam. Obstructions may cause blind and shadow sectors, or
generate false echoes. The higher the installation position,
the farther the radome 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.
• Most radar beams spread vertically 12.5° above
À
and 12.5°
below
Á
the radome'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. Use shims if necessary.
December 2016
Printed in Taiwan 190-02124-02_0A
• 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 ½ 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.
For Single Side Band (SSB) radios, increase the distance to
2 m (6 ½ ft.).
Mounting the Radar
Before you mount the radar, you must review the mounting
location considerations and select a mounting location.
NOTE: The supplied M8 x 1.25 x 60 threaded rods can be used
on mounting thicknesses of 5 to 30 mm (
3
/
16
to 1
3
/
16
in.)
(recommended). For surfaces over 30 mm (1
3
/
16
in.), use longer
threaded rods.
1
If you are not installing the device on a pre-drilled Garmin
compatible radar mount, use the included mounting template
to drill four 9.5 mm (
3
/
8
in.) mounting holes.
2
Connect the power cable to the power port
À
and the
network cable to the network port
Á
.
3
Press the cables into any of the guide grooves
Â
on the
bottom of the case, and secure them using a cable hold-
down plate
Ã
.
The cables should be bent or twisted as little as possible.
4
Position the radome on the mounting surface with the
triangular mark on the case aligned to the front of the vessel.
5
Apply the included anti-seize compound to the threads of the
four M8 x 1.25 x 60 threaded rods.
6
Insert the four threaded rods into the mounting holes on the
bottom of the radome.
Up to 50 mm (2 in.) of the threaded rods may extend below
the radome.
7
Apply a bead of marine sealant on the mounting surface
around each mounting hole.
8
Fasten the radome
Ä
to the mounting surface
Å
using the
threaded rods
Æ
, flat washers
Ç
, spring washers
È
, and hex
nuts
É
.
9
Using a torque wrench, tighten the nuts from 13.7 to 18.6 N-
m (10 to 14 lbf-in.) of force.
Cable Considerations
It may be necessary to drill 32 mm (1
1
/
4
) 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).
• 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 to 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 Garmin dealer if cutting the network cable is
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.
2
• 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.
Connecting the Power Cable
WARNING
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.
1
Route the power cable from the device to the power source.
2
Connect the red wire to the positive (+) battery terminal, and
connect the black wire to the negative (-) battery terminal.
3
If you have not already done so, connect the power cable to
the device by turning the locking ring clockwise.
Power Cable Extensions
Connecting the power cable directly to the battery is
recommended. If it is necessary to extend the cable, the
appropriate gauge of wire must be used for the length of the
extension.
Distance Wire Gauge
2 m (6.5 ft.) 16 AWG (1.31 mm²)
4 m (13 ft.) 14 AWG (2.08 mm²)
6 m (19 ft.) 12 AWG (3.31 mm²)
Connecting to a Device or to the Marine Network
You can connect the radar either directly to a radar-compatible
Garmin device or to a Garmin Marine Network to share radar
information with all connected devices.
NOTE: Not all Garmin devices are compatible with the Garmin
Marine Network. See the installation instructions or owner's
manual provided with your device for more information.
1
Route the network cable to your compatible Garmin device.
2
If you have not already done so, install the locking rings and
o-rings on the end of the network cable.
3
Select an option:
• If the Garmin device is not compatible with the Garmin
Marine Network, connect the network cable to the port
labeled RADAR.
• If the device is compatible with the Garmin Marine
Network, connect the network cable to the port labeled
NETWORK.
Radar Operation
All functions of this radar are controlled with your Garmin
chartplotter. See the Radar section of your chartplotter's manual
for operating instructions. To download the latest manual, go to
www.garmin.com/support/.
Measuring the Potential Front-of-Boat Offset
The front-of-boat offset compensates for the physical location of
the radar scanner on a boat, if the radar scanner does not align
with the bow-stern axis.
1
Using a magnetic compass, take an optical bearing of a
stationary target located within viewable range.
2
Measure the target bearing on the radar.
3
If the bearing deviation is more than +/- 1°, set the front-of-
boat offset.
Setting the Front-of-Boat Offset
Before you can set the front-of-boat offset, you must measure
the potential front-of-boat offset.
The front-of-boat offset setting configured for use in one radar
mode is applied to every other radar mode and to the Radar
overlay.
1
From a Radar screen or the Radar overlay, select Menu >
Radar Setup > Installation > Front of Boat.
2
Select Up or Down to adjust the offset.
Specifications
Specification Measurement
Minimum safe operating
distance*
GMR Fantom 18
• 100 W/m² = 0.69 m (2.26 ft.)
• 10 W/m² = 2.19 m (7.19 ft.)
GMR Fantom 24
• 100 W/m² = 0.81 m (2.66 ft.)
• 10 W/m² = 2.55 m (8.37 ft.)
Compass-safe distance .25 m (10 in.)
GMR Fantom 18 weight 6.3 kg (13.8 lb.)
GMR Fantom 24 weight 7.7 kg (17 lb.)
Temperature range From -25 to 70°C (from -13 to 158°F)
Case material Thermoplastic resin
Maximum antenna rotation
speed
48 RPM
Input voltage From 10 to 32 Vdc, 2.5 A max.
Power consumption Standby: 3 W
Transmitting: 18.1 to 24.4 W**
Fuse 7.5 A
Power output 40 W peak
RF transmit frequency 9335-9455 MHz nominal
GMR Fantom 18 beam width 5.2 degrees
GMR Fantom 24 beam width 3.7 degrees
Maximum range 48 nm
Minimum range 6 m (20 ft.)
*When it is transmitting, the radar should be located in a position
on the vessel that is at least this far from people. (IEC 60936-1,
clause 3-27.1, specifies the maximum distances from the
antenna at which radio frequency (RF) levels can be expected.)
**Power consumption when transmitting is affected by the range
setting. A greater range setting uses more power.
Detailed Dimensions
Item GMR Fantom 18 GMR Fantom 24
Length 508.2 mm (20 in.) 645.4 mm (25
7
/
16
in.)
À
(width) 504.7 mm (19
7
/
8
in.) 642.5 mm (25
5
/
16
in.)
Á
(height) 248.3 mm (9
3
/
4
in.) 250.3 mm (9
7
/
8
in.)
3
Item GMR Fantom 18 GMR Fantom 24
À
233 mm (9
3
/
16
in.) 233 mm (9
3
/
16
in.)
Á
227.5 mm (8
15
/
16
in.) 296.2 mm (9
11
/
16
in.)
Â
141.5 mm (5
9
/
16
in.) 141.5 mm (5
9
/
16
in.)
Ã
139.2 mm (5
1
/
2
in.) 207.7 mm (8
3
/
16
in.)
Installation Troubleshooting
Symptom Possible Causes
The radar does
not turn on. The
status LED is not
on.
• The power cable may not be connected correctly
to the device or to the battery. Check all
connections.
• The inline fuse may have blown. Check the fuse
and replace it if necessary.
• The wire gauge used to extend the power cable
may be too small for the length of the extension.
Check the table provided in the Power Cable
Extensions section of these instructions to make
sure the correct wire gauge is used (Power
Cable Extensions, page 3).
The radar is not
available on the
Garmin device or
on devices
connected to the
Garmin Marine
Network.
• The radar may not be powering on. Check the
status LED.
• The device software may not be up-to-date.
Update the software on the device or on the
Garmin Marine Network.
• The network cable may not be connected
correctly to the device or to the Garmin Marine
Network. Check all connections.
• If a field-installable network connector was used,
it may have been installed improperly. Check the
connector.
The status LED is located on the product label, and can help
troubleshoot installation problems.
Status LED Color
and Activity
Radar Status
Solid red The radar is getting ready for use. The LED
should be solid red briefly and change to flashing
green.
Flashing green The radar is operating properly.
Flashing orange The radar software is being updated.
Flashing red The radar has encountered an error. Contact
Garmin product support for assistance.
© 2016 Garmin Ltd. or its subsidiaries
Garmin
®
and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries,
registered in the USA and other countries. GMR
™
and Fantom
™
are trademarks of
Garmin Ltd. or its subsidiaries. These trademarks may not be used without the express
permission of Garmin.
© 2016 Garmin Ltd. or its subsidiaries support.garmin.com
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Garmin GMR Fantom™ 24 Guida d'installazione
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