Garmin GXM 54 Installation Instructions Manual
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Garmin GXM 54 Installation Instructions Manual

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GXM
54
™
INSTALLATION INSTRUCTIONS
Important Safety Information
WARNING
The weather information provided through this product is subject to service interruptions and may contain
errors, inaccuracies, or outdated information, and consequently should not be relied upon exclusively. Always
use common sense while navigating, and check alternate weather information sources prior to making safety-
related decisions. You acknowledge and agree that you shall be solely responsible for use of the weather
information and all decisions taken with respect to navigating in weather. Garmin
®
will not be responsible for
any consequences of using SiriusXM
®
weather information.
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
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 support.garmin.com.
Tools Needed
• Drill
1
• 3.2 mm (
/
in.) drill bit for pilot holes for surface mounting
8
• 25 mm (1 in.) hole saw or drill bit for surface-mount cable hole
3
• 19 mm (
/
in.) drill bit for pole-mount cable hole
4
• Countersink bit for surface mounting on fiberglass
• 1.5 mm hex wrench for included M3 screws
• Phillips screwdriver for included M4 screws
• M4 screws of appropriate length, if included M4 screws are too short
• Marine sealant (optional)
• Additional Garmin Marine Network components as needed
October 2022
GUID-D57F5CDC-08A4-43F8-90A0-2A457D4A398E v4

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  • Page 1 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 support.garmin.com.

  • Page 2: Antenna Mounting Considerations

    Antenna Mounting Considerations You can mount the antenna on a flat surface or attach it to a standard 1 in. OD, 14 threads per inch, pipe-threaded pole (not included). You can route the cable outside of the pole or through the pole. For best performance, consider these guidelines when selecting the antenna mounting location.

  • Page 3: Testing The Mounting Location

    • The antenna should be mounted at least 1 m (3 ft.) away from (preferably above) the path of a radar beam or a VHF radio antenna Testing the Mounting Location 1 Temporarily secure the antenna in the preferred mounting location and test it for correct operation. 2 If you experience interference with other electronics, move the antenna to a different location, and test it again.

  • Page 4: Surface Mounting The Antenna

    Surface Mounting the Antenna NOTICE If you are mounting the bracket on fiberglass with screws, it is recommended to use a countersink bit to drill a clearance counterbore through only the top gel-coat layer. This will help to avoid cracking in the gel-coat layer when the screws are tightened.

  • Page 5: Mounting The Antenna With The Cable Routed Through The Pole

    Mounting the Antenna with the Cable Routed Through the Pole Before you permanently mount the antenna, you must test the mounting location for correct operation (Testing the Mounting Location, page 3). 1 Position a standard 1 in. OD, 14 threads per inch, pipe-threaded pole (not included) in the selected location, and mark the approximate center of the pole.

  • Page 6: Mounting The Antenna With The Cable Routed Outside The Pole

    Attempting to connect the audio cable directly to a speaker will result in poor performance, and it may cause the antenna to shut down, which might damage the antenna or the speaker. You must connect this antenna to power and to the Garmin Marine Network to provide weather information to connected, compatible Garmin devices.
  • Page 7 You can secure the module to existing cabling or a structure using zip ties (not included), or you can secure it to a bulkhead using the included screws. If additional network ports are not available on the nearby Garmin Marine Garmin Marine...

  • Page 8: Activating A Siriusxm Subscription

    6 m (20 ft) Power cable length 2 m (6.5 ft.) Garmin Marine Network cable length 2 m (6.5 ft.) Audio cable length 2 m (6.5 ft.) The device withstands incidental exposure to water of up to 1 m for up to 30 min. For more information, go to www.garmin.com/waterrating.

  • Page 9: Fcc Compliance

    © 2019 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. GXM is a trademark of Garmin Ltd. or its ™ subsidiaries. These trademarks may not be used without the express permission of Garmin.
  • Page 10 © 2019 Garmin Ltd. or its subsidiaries support.garmin.com...

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