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Garmin GA 38 Installation Instructions Manual

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Important Safety Information
See the Important Safety and Product Information guide in the GPS device product box for product warnings and
other important information.
To avoid possible personal injury, always wear safety goggles, ear protection, and a dust mask when drilling,
cutting, or sanding.
When drilling or cutting, always check what is on the opposite side of the surface to avoid damaging the vessel.
This antenna can be installed to provide a stronger GPS signal to a compatible Garmin
antenna uses a BNC connector to connect to the port labeled ANTENNA or EXT GPS on a compatible Garmin
chartplotter.
Antenna Mounting Considerations
Do not install or store the antenna near strong magnets, including speakers. A strong magnetic field can
damage the antenna.
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.
• To ensure the best reception, 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
antenna, or the mast.
• The antenna should not be mounted near the engine or other sources of Electromagnetic Interference (EMI)
.
September 2023
GA
INSTALLATION INSTRUCTIONS
WARNING
CAUTION
NOTICE
CAUTION
.
38
TA-2013/783
GUID-4523A703-20B6-4900-8AA1-7FD4DDDF628D v7
chartplotter. This
®
, a radome

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Summary of Contents for Garmin GA 38

  • Page 1 This antenna can be installed to provide a stronger GPS signal to a compatible Garmin chartplotter. This ® antenna uses a BNC connector to connect to the port labeled ANTENNA or EXT GPS on a compatible Garmin chartplotter. Antenna Mounting Considerations CAUTION Do not install or store the antenna near strong magnets, including speakers.
  • Page 2 • The antenna should not be mounted near known ferrous metal objects such as a toolbox or compass. • If a radar is present, the antenna should be mounted above the path of the radar . If necessary, the antenna may be mounted below the path of the radar •...
  • Page 3 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 4 Mounting the Antenna on a Pole 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 2). 1 Route the cable through the pole-mount adapter , and place the cable in the vertical slot along the base of the pole-mount adapter.
  • Page 5 7 Use the included M3 set screw and a 1.5 mm hex wrench to secure the antenna to the adapter 8 With the antenna installed on the pole mount, fill the vertical cable slot with a marine sealant (optional). 9 Route the cable away from sources of electronic interference. Mounting the Antenna Under the Deck NOTICE Before using the included screws to secure the under-deck mounting bracket, verify they are short enough to...
  • Page 6: Specifications

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