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.4 of transmitting and receiving search and rescue co-ordinating
communications;
.5 of transmitting and receiving on-scene communications;
.6 of transmitting and, as required by regulation V/12(g) and (h),
receiving signals for locating; **
[** Reference is made to resolution A.614 (15) on carriage of radar
operating in the frequency band 9,300-9,500 MHz adopted by the fifteenthAssembly.]
.7 of transmitting and receiving*** maritime safety information;
[*** It should be noted that ships may have a need for reception of
certain maritime safety information while in port.]
.8 of transmitting and receiving general radiocommunications to
and from shore-based radio systems or networks subject to regulation 15.8; and
.9 of transmitting and receiving bridge-to-bridge communications.
PART B UNDERTAKINGS BY CONTRACTING GOVERNMENTS*
[* 1 Each Contracting Government is not required to provide all
radiocommunication services.
2 The requirements should be specified for shore-based facilities to
cover the various sea areas.]
Regulation 5 Provision of radiocommunication services
1 Each Contracting Government undertakes to make available, as it
deems practical and necessary either individually or in co-operation with
other Contracting Governments, appropriate shore-based facilities for
space and terrestrial radiocommunication services having due regard to the
recommendations of the Organization.** These services are:
[** Reference is made to the recommendation on the provision of
radiocommunication services for the global maritime distress and safety
system (Assembly resolution A.659 (16)).]
.1 a radiocommunication service utilizing geostationary satellites
in the Maritime Mobile-Satellite Service;
.2 a radiocommunication service utilizing polar orbiting
satellites in the Mobile-Satellite Service;
.3 the Maritime Mobile Service in the bands between 156 MHz and
174 MHz;
.4 the Maritime Mobile Service in the bands between 4,000 kHz and
27,500 kHz; and
.5 the Maritime Mobile Service in the bands between 415 kHz and
535 kHz and between 1,605 kHz and 4,000 kHz.
2 Each Contracting Government undertakes to provide the Organization
with pertinent information concerning the shore-based facilities in the
Maritime Mobile Service, Mobile-Satellite Service and Maritime
Mobile-Satellite Service, established for sea areas which it has
designated off its coasts.
PART C SHIP REQUIREMENTS
Regulation 6 Radio installations
1 Every ship shall be provided with radio installations capable of
complying with the functional requirements prescribed by regulation 4
throughout its intended voyage and, unless exempted under regulation 3,
complying with the requirements of regulation 7 and, as appropriate for
the sea area or areas through which it will pass during its intended
voyage, the requirements of either regulation 8, 9, 10 or 11.
2 Every radio installation shall:
.1 be so located that no harmful interference of mechanical,
electrical or other origin affects its proper use, and so as to ensure
electromagnetic compatibility and avoidance of harmful interaction with
other equipment and systems;
.2 be so located as to ensure the greatest possible degree of
safety and operational availability;
.3 be protected against harmful effects of water, extremes of
temperature and other adverse environmental conditions;
.4 be provided with reliable, permanently arranged electrical
lighting, independent of the main and emergency sources of electrical
power, for the adequate illumination of the radio controls for operatingthe radio installation; and
.5 be clearly marked with the call sign, the ship station identity
and other codes as applicable for the use of the radio installation.
3 Control of the VHF radiotelephone channels, required for
navigational safety, shall be immediately available on the navigating
bridge convenient to the conning position and, where necessary, facilities
should be available to permit radiocommunications from the wings of the
navigating bridge. Portable VHF equipment may be used to meet the latterprovision.
Regulation 7 Radio equipment-General
1 Every ship shall be provided with:
.1 a VHF radio installation capable of transmitting and receiving:
.1.1 DSC * on the frequency 156.525 MHz (channel 70). It shall be
possible to initiate the transmission of distress alerts on channel 70
from the position from which the ship is normally navigated; ** and
[* Digital selective calling (DSC) for all ships and HF
direct-printing telegraphy (NBDP) carriage requirements for ships of 300tons gross tonnage and over but less than 1,600 tons gross tonnage are
subject to review in accordance with resolution A.606 (15)-Review and
evaluation of the GMDSS. Unless otherwise specified this footnote applies
to all DSC and NBDP requirements prescribed in the Convention.]
[** Certain ships may be exempted from this requirement (see
regulation 9.4)]
.1.2 radiotelephony on the frequencies 156.300 MHz (channel 6),
156.650 MHz (channel 13) and 156.800 MHz (channel (16);
.2 a radio installation capable of maintaining a continuous DSC
watch on VHF channel 70 which may be separate from, or combined with, the
required by subparagraph .1.1; ***
[*** Certain ships may be exempted from this requirement (see.]
.3 a radar transponder capable of operating in the 9 GHz band, which:
.3.1 shall be so stowed that it can be easily utilized; and
.3.2 may be one of those required by regulation III/6.2.2 for a
survival craft;
.4 a receiver capable of receiving international NAVTEX service
broadcasts if the ship is engaged on voyages in any area in which an
international NAVTEX service is provided;
.5 a radio facility for reception of maritime safety information
by the INMARSAT enhanced group calling system if the ship is engaged on
voyages in any area of INMARSAT coverage but in which an international
NAVTEX service is not provided. However, ships engaged exclusively on
voyages in areas where an HF direct-printing telegraphy**** maritime
safety information service is provided and fitted with equipment capableof receiving such service, may be exempt from this requirement;
[**** Digital selective calling (DSC) for all ships and HF
direct-printing telegraphy (NBDP) carriage requirements for ships of 300tons gross tonnage and over but less than 1,600 tons gross tonnage are
subject to review in accordance with resolution A. 606(15) - Review and
evaluation of the GMDSS. Unless otherwise specified this footnote applies
to all DSC and NBDP requirements prescribed in the Convention.]
[**** Reference is made to the recommendation on promulgation of
maritime safety information, to be developed by the Organization (see MSC
55/25, annex 8).]
.6 subject to the provisions of regulation 8.3, a satellite
emergency position-indicating radio beacon (satellite EPIRB) which shall be:
.6.1 capable of transmitting a distress alert either through the
polar orbiting satellite service operating in the 406 MHz band or, if the
ship is engaged only on voyages within INMARSAT coverage, through the
INMARSAT geostationary satellite service operating in the 1.6 GHz band; *
[* Subject to the availability of appropriate receiving and processing
ground facilities for each ocean region covered by INMARSAT satellites.]
.6.2 installed in an easily accessible position;
.6.3 ready to be manually released and capable of being carried by
one person into a survival craft;
.6.4 capable of floating free if the ship sinks and of being
automatically activated when afloat; and
.6.5 capable of being activated manually.
2 Until 1 February 1999 or until such other date as may be determined
by the Maritime Safety Committee, every ship shall, in addition, be fitted
with a radio installation consisting of a radiotelephone distress
frequency watch receiver capable of operating on 2,182 kHz.
3 Until 1 February 1999, every ship shall, unless the ship is engaged
on voyages in sea area A1 only, be fitted with a device for generating the
radiotelephone alarm signal on the frequency 2,182 kHz.
4 The Administration may exempt ships constructed on or after 1
February 1997 from the requirements prescribed by paragraphs 2 and 3.
Regulation 8 Radio equipment-Sea area A1
1 In addition to meeting the requirements of regulation 7, every ship
engaged on voyage exclusively in sea area A1 shall be provided with a
radio installation capable of initiating the transmission of ship-to-shore
distress alerts from the position from which the ship is normally
navigated, operating either:
.1 on VHF using DSC; this requirement may be fulfilled by the
EPIRB prescribed by paragraph 3, either by installing the EPIRB close to,
or by remote activation from, the position from which the ship is
normally navigated; or
.2 through the polar orbiting satellite service on 406 MHz; this
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