Sec. 80.1089  Ship radio equipment--Sea areas A1 and A2.

    This section contains the additional equipment requirements for 
ships that remain within sea areas A1 or A2 at all times. Ships fitting 
in accordance with this section satisfy the sea area A1 requirements 
denoted in Sec. 80.1087.
    (a) In addition to meeting the requirements of Sec. 80.1085, ships 
engaged on voyages beyond sea area A1, but remaining within sea area A2, 
must be provided with:
    (1) An MF radio installation capable of transmitting and receiving, 
for distress and safety purposes, on the frequencies:
    (i) 2187.5 kHz using DSC; and
    (ii) 2182 kHz using radiotelephony;
    (2) A radio installation capable of maintaining a continuous DSC 
watch on the frequency 2187.5 kHz which may be separate from or combined 
with, that required by paragraph (a)(1)(i) of this section; and
    (3) Means of initiating the transmission of ship-to-shore distress 
alerts by a radio service other than MF operating either:

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    (i) Through the polar orbiting satellite service on 406 MHz (this 
requirement may be fulfilled by the 406 MHz EPIRB required by 
Sec. 80.1085(a)(6), either by installing the 406 MHz EPIRB close to, or 
by allowing remote activation from, the position from which the ship is 
normally navigated); or
    (ii) On HF using DSC; or
    (iii) Through the INMARSAT geostationary satellite service if within 
INMARSAT coverage; this requirement may be fulfilled by an INMARSAT ship 
earth station.
    (b) It must be possible to initiate transmission of distress alerts 
by the radio installations specified in paragraphs (a)(1) and (a)(3) of 
this section from the position from which the ship is normally 
navigated.
    (c) Ships subject to this section must be capable of transmitting 
and receiving general radiocommunications using radiotelephony or 
direct-printing telegraphy by either:
    (1) A radio installation operating on working frequencies in the 
bands between 1605-4000 kHz or between 4000-27500 kHz (this requirement 
may be fulfilled by the addition of this capability to the equipment 
required by paragraph (a)(1) of this section); or
    (2) An INMARSAT ship earth station.