Sven Yrvindvideo
Fixing the missing 1/2 metre.
12 May 2026 · 3 min · 2K views
Sven holds note marking 50cm cable shortage on workbench
What this video covers
Sven Yrvind is extending three grounding cables, each 50 cm short of the required length, to complete the RF ground installation for an AIS unit.▶ 0:31 The manufacturer's documentation requires the router to be connected to a ground plate, and after consulting the manufacturer directly, Yrvind follows that instruction despite noting that some AIS units — including models he has used on previous voyages in 2007, 2008, 2011, and 2020, and a unit a friend currently uses — require no such ground connection.▶ 1:14 He purchases 4 mm grounding cable, described as expensive at 19 (currency unspecified), and runs both a red and a black conductor to the ground plates so either polarity can be accommodated.▶ 1:35 The work is deferred to the following day because of the late hour.▶ 1:43 The practical point: AIS grounding requirements vary by manufacturer and model, and a solo sailor should verify the specific unit's documentation rather than assuming prior experience with other units applies.
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