Insert a memory card into the card slot on the computer.
1
2
3
Select Download next to “Garmin Marine Network with SD
card.”
GMR™ 18/24 xHD Installation
Instructions
Read and agree to the terms.
Select Download.
Select Run.
4
5
6
7
You can operate this device only with radar-compatible Garmin®
devices or through a Garmin Marine Network. See your Garmin
Select the drive associated with the memory card, and select
Next > Finish.
Important Safety Information
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.
WARNING
See the Important Safety and Product Information guide in the
product box for product warnings and other important
information.
Turn on the chartplotter.
1
2
3
4
Insert the memory card into the card slot.
Follow the on-screen instructions.
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.
Wait several minutes while the software update process
completes.
The device returns to normal operation after the software
update process is complete.
Remove the memory card.
5
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.
Mounting Considerations
To complete the installation, you need the appropriate
fasteners, tools, and mounts. These items are available at most
marine dealers.
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 will void the product warranty.
•
It is highly recommended that the device is mounted out of
range of personnel, with the horizontal beam width above
head height.
IEC 60936-1, clause 3-27.1, states maximum distances from
the antenna at which radio frequency (RF) levels can be
expected:
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.
◦
18 xHD
◦
100 W/m squared = 91 cm (36 in.)
◦
10 W/m squared = 289 cm (114 in.)
Always wear safety goggles, ear protection, and a dust mask
when drilling, cutting, or sanding.
◦
24 xHD
◦
◦
100 W/m squared = 108 cm (43 in.)
10 W/m squared = 343 cm (135 in.)
NOTICE
When drilling or cutting, always check what is on the opposite
side of the surface.
•
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.
Registering Your Device
Help us better support you by completing our online registration
today.
•
•
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.
•
•
Keep the original sales receipt, or a photocopy, in a safe
place.
Most radar beams spread vertically 12.5° above and 12.5°
À
below the radome's radiating element. On vessels with
Á
Contacting Garmin Product Support
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.
•
for in-country support information.
•
•
•
In the USA, call (913) 397.8200 or (800) 800.1020.
In the UK, call 0808 2380000.
In Europe, call +44 (0) 870.8501241.
Loading the New Software on a Memory
Card
The device may contain a software-update memory card. If so,
follow the instructions provided with the card. If a software
update memory card is not included, you must copy the
software update to a memory card.
November 2013
190-01656-02_0B
Printed in Taiwan
•
If the device is compatible with the Garmin Marine
Network, connect the network cable to the port labeled
NETWORK.
Radar Operation
All functions of the Garmin radome are controlled with your
Garmin chartplotter. See the Radar section of your chartplotter's
manual for operating instructions. To download the latest
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.
Using a magnetic compass, take an optical bearing of a
stationary target located within viewable range.
1
Measure the target bearing on the radar.
2
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.
Using a torque wrench, tighten the nuts from 13.7 to 18.6 N-
m (10 to 14 lbf-in.) of force.
10
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.
Connecting the Power Cable
WARNING
Select Up or Down to adjust the offset.
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 will void the product warranty.
Specifications
Specification
Measurement
GMR 18 xHD weight
GMR 24 xHD weight
Temperature range
Case material
7.7 kg (16.95 lb.)
9.5 kg (20.9 lb.)
-15 to 70°C (5 to 158°F)
Thermoplastic resin
48 RPM
Route the power cable from the device to the power source.
1
2
Connect the red wire to the positive (+) battery terminal, and
connect the black wire to the negative (-) battery terminal.
Default antenna rotation speed
If you have not already done so, connect the power cable to
the device by turning the locking ring clockwise.
3
Alternative antenna rotation speed 24 RPM
Power input source
Power output
10.5 to 35 Vdc, 3.5 A
Power Cable Extensions
4 kW peak
9410 MHz nominal
1 m (3.28 ft.)
3.7°
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.
RF transmit frequency
Compass-safe distance
GMR 18 xHD beam width
GMR 24 xHD beam width
Maximum range
5.2°
Distance
Wire Gauge
48 nm
2 m (6.5 ft.)
4 m (13 ft.)
6 m (19 ft.)
16 AWG (1.31 mm²)
14 AWG (2.08 mm²)
12 AWG (3.31 mm²)
Minimum range
20 m (66 ft.)
16 m (52.5 ft.)
Range discrimination
Range scales
0.125, 0.25, 0.5, 0.75, 1, 1.5, 2, 3,
4, 6, 8, 12, 16, 24, 36, 48 nm
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.
Detailed Dimensions
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.
Route the network cable to your compatible Garmin device.
1
2
If you have not already done so, install the locking rings and
o-rings on the end of the network cable.
Select an option:
3
Item
GMR 18 xHD
GMR 24 xHD
•
If the Garmin device is not compatible with the Garmin
Marine Network, connect the network cable to the port
labeled RADAR.
Length
508.2 mm (20 in.)
504.7 mm (19 7/8 in.)
248.3 mm (9 ¾ in.)
645.4 mm (25 7/16 in.)
642.5 mm (25 5/16 in.)
250.3 mm (9 7/8 in.)
(width)
À
Á
(height)
3
Status LED Color and Radar Status
Activity
Solid red
The radar is getting ready for use.
Flashing green
Flashing orange
Flashing red
The radar is operating properly.
The radar software is being updated.
The radar has encountered an error. Contact
Garmin product support for assistance.
Item
À
GMR 18 xHD
233 mm (9 3/16 in.)
176.7 mm (6 15
141.5 mm (5 9/16 in.)
GMR 24 xHD
233 mm (9 3/16 in.)
245.4 mm (9 11
/16 in.)
141.5 mm (5 9/16 in.)
258.5 mm (10 3/16 in.)
207.7 mm (8 3/16 in.)
141.5 mm (5 9/16 in.)
/
16 in.)
Á
Â
190 mm (7 ½ in.)
Ã
139.2 mm (5 ½ in.)
141.5 mm (5 9/16 in.)
227.5 mm (8 15
Ä
Å
/
16 in.)
296.2 mm (9 11
/16 in.)
Æ
Installation Troubleshooting
Symptom
Possible Causes
The radar does
not power on (no
status LED).
• 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.
The radar is not
available on the
Garmin device or
on devices
connected to the
Garmin Marine
Network.
• 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.
Garmin International, Inc.
1200 East 151st Street
Garmin® and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other countries. GMR™is a
trademarks of Garmin Ltd. or its subsidiaries. These trademarks may not be used without the express permission of Garmin.
Olathe, Kansas 66062, USA
Garmin (Europe) Ltd.
Liberty House, Hounsdown Business Park
Southampton, Hampshire, SO40 9LR UK
Garmin Corporation
No. 68, Zhangshu 2nd Road, Xizhi Dist.
New Taipei City, 221, Taiwan (R.O.C.)
© 2013 Garmin Ltd. or its subsidiaries
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