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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 any cracking in the gel-coat layer when the screws are tightened.

NOTICE

Stainless-steel screws may bind when screwed into fiberglass and overtightened. Garmin® recommends applying an anti-seize lubricant to the screws before installing them.

Before you permanently mount the antenna, you must test the mounting location for correct operation (Antenna Mounting Considerations).

  1. Using the surface-mount bracket Callout number one as your mounting template, mark the three pilot-hole locations and trace the cable-hole in the center of the bracket.

    Surface-mount diagram with callouts
  2. Set the surface-mount bracket aside.

    Do not drill through the bracket.

  3. Drill the three 3.2 mm (1/8 in.) pilot holes.
  4. Use a 25 mm (1 in.) hole saw to cut the cable hole in the center.
  5. Place the seal pad Callout number two on the bottom of the surface-mount bracket, aligning the screw holes.
  6. Use the included M4 screws to secure the surface-mount bracket to the mounting surface.
  7. Route the cable Callout number three through the 25 mm (1 in.) hole and connect it to the antenna.
  8. Verify the large gasket Callout number four is in place on the bottom of the antenna, place the antenna on the surface-mount bracket, and twist it clockwise to lock it in place.
  9. Secure the antenna to the mounting bracket with the included M3 set screw Callout number five.
  10. Route the cable away from sources of electronic interference.
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