Notices to Mariners

North Channel Traffic Separation Scheme Automatic Identification System (AIS) Experimental Service

10 - 2004

Issue Date: Wednesday 27 October 2004

Aid:

Area:

The Commissioners of Irish Lights hereby give notice that on or about the 10th November 2004, the message transmitted by the Experimental AIS Service at Altacarry Head (Rathlin East) Lighthouse will be amended as follows:

Location	Altacarry Head (Rathlin East Lighthouse)
Latitude	55° 18.10' N
Longitude	06° 10.30' W (WGS Datum)
MMSI Number	002320707
Message Type	AIS short safety related message
Message Content	CIL TEST

 

Mariners are advised that Addressed Messages will be sent from time to time to vessels approaching the area of the North Channel Traffic Separation Scheme.

User report or comment on the provision of this service is welcomed. Comments should be addressed to the Head of Marine, Commissioners of Irish Lights, 16 Lower Pembroke Street, Dublin 2; or by email to aisforum@cil.ie. Alternatively, mariners may reply directly by AIS addressed message to the AIS shore station.

It would be appreciated if user reports could provide as much of the following detail as possible:

• Detection range and bearing or Latitude and Longitude at time of detection.
• How many times a correct addressed message is received.
• How often incorrect messages are received.
• The barometric pressure reading at the time of initial detection of the transmission.

 

All radio navigation systems are susceptible to environmental effects and interference (including jamming), which can adversely affect their availability. The Commissioners of Irish Lights strongly advise that no single aid to navigation system should be relied upon in isolation and that AIS users should use all alternative means available to cross check the information received.

By Order, T. M. Boyd, Chief Executive.