Antenna Mounting Considerations

You can mount the antenna on a flat surface, install it under fiberglass, 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 Callout number 1.


    Typical mounting locations with callouts
  • The antenna should not be mounted where it is shaded by the superstructure of the boat Callout number 2, a radome antenna, or the mast.

  • The antenna should not be mounted near the engine or other sources of Electromagnetic Interference (EMI) Callout number 3.

  • If a radar is present, the antenna should be mounted above the path of the radar Callout number 4. If necessary, the antenna may be mounted below the path of the radar Callout number 5.
    Antenna location relative to radar with callouts
  • The antenna should not be mounted directly in the path of the radar Callout number 6.

  • 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 Callout number 7.
    Antenna location relative to radar or VHF radio with callouts
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January 2025