GMR
™
18 HD3 AND 18/24 XHD3
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.
Failure to install this device according to these instructions could result in personal injury, damage to the vessel
or device, or poor product performance.
The radar transmits electromagnetic energy. To avoid possible personal injury, damage to the vessel or device,
or poor product performance, 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.
To avoid possible personal injury, do not look directly at the antenna at close range when the radar is
transmitting. 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. Connecting the power cable without the appropriate fuse in place voids the product warranty.
CAUTION
For the best possible performance and to avoid potential injury, damage to the device, or damage to your vessel,
installation by a qualified marine installer is recommended.
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.
This device should be used only as a navigational aid. Using the device for any purpose requiring precise
measurement or direction, distance, location, or topography may result in personal injury or damage to the
vessel.
To avoid possible personal injury, 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 to avoid damaging the vessel.
Software Update
You must update the Garmin chartplotter software when you install this device. For instructions on updating the
software, see your chartplotter owner's manual at
.
GUID-0436BE40-091E-49FE-9005-E50CFCABE751 v1
June 2023
