The Archbeacon shapes a unique highlighting sequence above background lighting.

With only two points of support it projects a wider dimension of signalling lights.

It provides an elliptical view when sailing oblique and thus sailors can notice its position torwards the entry channel.

Serves both as a day and night mark since the GRP can be coloured green or red and it includes the AtoN on top of the Archbeacon.

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Why harbours should install the Archbeacon?

  • The Archbeacon shapes a unique highlighting sequence above background lighting.
  • With only two points of support it projects a wider dimesnion of signalling lights.
  • It provides an elliptical view when sailing oblique and thus sailors can notice its position torwards the entry channel.
  • Serves both as a day and night mark since the GRP can be coloured green or red and it includes the AtoN on top of the Archbeacon.

Archbeacon

With the growing problem of background lighting Archbeacon worked with Spanish authorities to provide a method of visual reference to the normal, IALA recommended port entrance lights. Archbeacon was invented.

Archbeacon now assists mariners in several Spanish ports and has glowing references.

Archbeacon provides a strong visual reference against severe background lighting and can be seen from a distance of between 3 and 5Nm. “In the IALA Guideline (1073) on Conspicuity of Lights the ARCHBEACON is mentioned as a “pointing device”.

IALA Guideline No. 1073
On Conspicuity of AtoN lights at Night
Edition 1
June 2011
The shape of a light source is irrelevant when it is viewed as a point source but if it is intended to be viewed as a lit area or extended light source, a given shape can be instantly recognisable to an observer. A lit shape can provide a very conspicuous marker, used either as a pointer to an AtoN or as an AtoN in its own right. Light source shapes are recognised more quickly and effectively than a flashing point source. Japan Coast Guard has done some work on illuminated numbers on buoys.

This has the advantage, not only of fast recognition but also enables the mariner to gauge his/her distance from the buoy more effectively. This has reportedly reduced the number of collisions with buoys. Spain is also experimenting with shaped ‘Pointer’ lights to accentuate the position of an AtoN against heavy background lighting. In the port of Barcelona a new prototype of a device pointer, in the shape of an arc, was installed in mid-2007. Its main aim of this arc-pointer was to improve the identification of the AtoN light. Since installation, user feedback has been collected and the opinion of users is highly positive.

The device is an arc of light that is installed on the shore next to an existing AtoN light. The arc-pointer displays a circular sequence of lights that gives the user the impression of a moving pointer. This is used to ‘point’ to the position of an AtoN light. The arc-pointer is not itself an AtoN but can be used as such by the mariner until the actual AtoN light is identified.

This arc-pointer is more conspicuous than any other background light because of its shape, colour and the apparent movement caused by the sequenced flashing. Moreover, since the arc is oriented perpendicular to the direction of approach to the port, the observed shape of the arc can also give an indication of position. If the mariner is taking a direct approach to the port entrance, a circular shaped arc will be seen. Whereas, if an oblique approach is taken, the mariner will see an elliptical shaped arc.

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