NAV 44/3/2
7.7 Radar Facilities
GRIS NEZ TRAFFIC is equipped with two radar
installations at:-
● Cap Gris Nez; and
● Mont St. Frieux.
The two radar installations are linked to a
single processing system, giving a complete visual display of
the area covered.
7.8 Particular Features
The system at GRIS NEZ TRAFFIC
allows the simultaneous monitoring of 1,000 tracks, which can
be recorded and saved for up to a year. Advanced functions
include alarms signalling risk scenarios, the identification
of tracks infringing Rule 10 of the COLREGs, the monitoring
of ships which make abrupt changes of course and speed, the
observation of ships entering prohibited areas, and the
monitoring of ships at anchor. All situations can be
recorded, archived, and replayed either on screen or in the
form of a print out.
7.9 Radiocommunications facilities
CROSS GRIS NEZ is equipped
with 4 VHF radio installations, allowing coverage of the
whole of the reporting area. Each station can send or receive
on:
● VHF DSC Ch 70 (continuously
monitored)
● Ch 16 (continuously monitored)
● Ch 13 (on which ships are requested
to send their reports - again, continuously monitored)
One station (Cap Gris Nez) has
facilities to send and receive information on MF, both
through radiotelegraphy and DSC on a frequency of 2187.5
kHz, which is continually monitored.
7.10 Direction Finding Equipment
GRIS NEZ TRAFFIC is equipped
with 2 VHF radio direction finders installed at Cap Gris Nez
and Mont St. Frieux, allowing VHF calls to be located
precisely. Each installation can monitor 2 frequencies
simultaneously within an accuracy of 0.5°.
7.11 Personnel
Both DOVER COASTGUARD and GRIS
NEZ TRAFFIC are staffed by personnel experienced In the
management of ship reporting systems.
8 ALTERNATIVE COMMUNICATION IF THE
SHORE-BASED FACILITIES FAIL
CNIS is designed, with
sufficient system redundancy to cope with normal equipment
failure. Radars have dual transmitter/receivers controlled
either from MRCC DOVER or the radar site. Radiocommunications
are controlled at the MRCC. In the event of a failure there,
each transmitter/receiver can be operated from the radar
site. Limited coverage can also be achieved using emergency
25W transceivers, or 5W portable radios at DOVIE;R
COASTGUARD. If CNIS operations are jeopardised at either
DOVER COASTGUARD or GRIS NEZ TRAFFIC, then the other site can
assume total control.
9 MEASURES TO BE TAKEN IF A SHIP
FAILS TO COMPLY WITH THE REQUIREMENTS OF THE SYSTEM
The primary objective of the
system is to facilitate the exchange of information between
the ship ,and the shore and so support safe navigation and
the protection of the marine environment. All means will be
used to encourage and promote the full participation of ships
required to submit reports under SOLAS Regulation V/8-1.If
reports are not submitted and the offending ship can be
positively identified, then information will be passed to the
relevant Flag State Authorities for investigation and
possible prosecution in accordance with national legislation.
Information will also be made available to Port State Control
inspectors.
10 DATE OF ENTRY INTO FORCE
The mandatory ship reporting system will
enter into force at 0001hrs UTC on [1 July 1999].
***
I:/NAV/44/3-2.WPD
