Ais Overview - Raymarine AIS700 Installation Instructions Manual

9. Screws for (optional) pole-mounting of the GNSS antenna
10. Documentation
11. Fixings for (optional) surface mounting of the GNSS antenna (3 x M3x40 stud and thumb nut)
Important: The AIS unit is supplied with a nut and washer pre-fitted to the unit's grounding lug.
This dedicated grounding point must be connected via a suitable grounding strap (not supplied)
to your vessel's RF ground point. For more information, refer to the label attached to the unit's
grounding lug, as well as the following section of the Connections chapter:

2.6 AIS overview

Your AIS700 uses digital radio signals to exchange 'real-time' information between vessels, shore
based stations, or aids to navigation (AToNs) on dedicated VHF frequencies. This information is used
to identify and track vessels in the surrounding area and to provide fast, automatic and accurate
collision avoidance data.
Although AIS augments your Radar app by operating in Radar blind spots and detecting smaller
AIS-fitted vessels, it does not replace your Radar, as it relies on receiving transmitted AIS information
and therefore cannot detect objects such as landmasses, navigational beacons or vessels not
equipped with AIS.
Note:
NEVER assume that AIS is displaying information from all vessels in the area, because:
• Not all vessels are fitted with AIS
• Although it is mandatory for larger commercial vessels to carry AIS, it is not mandatory to use it.
AIS should be used only to augment Radar information, not substitute it.
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p.32 — Grounding