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Mounting the Antenna with the Cable Routed Outside the Pole

Before you permanently mount the antenna, you must test the mounting location for correct operation (

Testing 

the Mounting Location, page 3

).

Route the cable through the pole-mount adapter  , and place the cable in the vertical slot   along the base 

of the pole-mount adapter.

Screw the pole-mount adapter onto a standard 1 in. OD, 14 threads per inch, pipe-threaded pole (not 

included).
Do not overtighten the adapter on the pole.

Connect the cable to the antenna.
Place the antenna on the pole-mount adapter and twist it clockwise to lock it in place.
Use the included M3 set screw and a 1.5 mm hex wrench to secure the antenna to the adapter  .
With the antenna installed on the pole mount, fill the remaining gap in the vertical cable slot with a marine 

sealant (optional).

Attach the pole to the boat if it is not already attached.
Route the cable away from sources of electronic interference.

Connection Considerations

NOTICE

If you are connecting the audio cable from the wiring harness, you must connect it to the line-in or auxiliary port 
on a stereo. 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.

6

Summary of Contents for GXM 54

Page 1: ...cifications 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 ch...

Page 2: ...on the antenna should be mounted in a location that has a clear unobstructed view of the sky in all directions The antenna should not be mounted where it is shaded by the superstructure of the boat a radome antenna or the mast The antenna should not be mounted near the engine or other sources of Electromagnetic Interference EMI If a radar is present the antenna should be mounted above the path of ...

Page 3: ...ounting 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 3 Repeat steps 1 2 until you observe full or acceptable signal strength 4 Permanently mount the antenna 3 ...

Page 4: ...surface mount bracket aside Do not drill through the bracket 3 Use a 3 2 mm 1 8 in drill bit to drill the three pilot holes 4 Use a 25 mm 1 in drill bit or hole saw to drill or cut the cable hole in the center 5 Use the included M4 screws and a Phillips screwdriver to secure the surface mount bracket to the mounting surface If the included M4 screws are too short use M4 screws of appropriate lengt...

Page 5: ...bit to drill a hole for the cable to pass through 3 Fasten the pole to the boat 4 Thread the pole mount adapter onto the pole Do not overtighten the adapter 5 Route the cable through the pole and connect it to the antenna 6 Place the antenna on the pole mount adapter and twist it clockwise to lock it in place 7 Use the included M3 set screw and a 1 5 mm hex wrench to secure the antenna to the adap...

Page 6: ...cluded M3 set screw and a 1 5 mm hex wrench to secure the antenna to the adapter 6 With the antenna installed on the pole mount fill the remaining gap in the vertical cable slot with a marine sealant optional 7 Attach the pole to the boat if it is not already attached 8 Route the cable away from sources of electronic interference Connection Considerations NOTICE If you are connecting the audio cab...

Page 7: ...nstall the module in a location with access to power the installed antenna and a Garmin Marine Network device 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 Garmin Marine network device If additional network ports are not available on the nearby Garmin Marine Network device you may need to use a ...

Page 8: ... receiving the SiriusXM signal 5 If the service is not activated within the hour go to http care siriusxm com refresh or contact SiriusXM Listener Care by phone at 1 866 635 2349 Appendix Specifications Measurement Specification Dimensions diameter x height 91 6 49 5 mm 3 61 1 95 in Weight 221 g 7 8 oz Operating temperature range From 30 to 70 C from 22 to 158 F Storage temperature range From 35 t...

Page 9: ... on the user is encouraged to try to correct the interference by one of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet that is on a different circuit from the GPS device Consult the dealer or an experienced radio TV technician for help This product does not contain any user servic...

Page 10: ... 2019 Garmin Ltd or its subsidiaries support garmin com ...

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