Английский язык: Сборник текстов и упражнений для студентов специальности "Судовождение". Пенязь Г.В. - 5 стр.

                               Unit 1
                   RADIOTELEPHONE COMMUNICATION

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                                          Text

      The radiotelephone public correspondence service provided on ships should, if
possible, be operated on duplex basis. For the conduct of duplex telephony, the
transmitting frequencies of the coast stations shall be associated in pairs. When not
using satellite service mobile station may call the land station only when it comes
within the service area of the latter. Each coast station transmits its calls in the form
of traffic lists. The general call to all stations announcing the traffic lists are sent in
the following form:
      “Hello, all ships” or CQ (spoken as Charlie Quebec).
      The words THIS IS “… Radio” not more than 3 times.
      “Listen for my traffic list on …kHz”.
      Mobile stations should as far as possible listen to the traffic lists transmitted
by coast stations. On hearing their call sigh or other identification in such a list they
must reply as soon as they can do so.
      Before transmitting a station shall take precautions to ensure that it will not in-
terfere with transmissions already in progress. If such interference is likely, the sta-
tion shall await an appropriate break in the working. The mobile station whose
emission causes interference to the transmission already in progress shall cease
sending at the first request of the coast station. The station, which requests this ces-
sation, shall indicate the approximate waiting time.
      The ship station shall call the coast station by speech in the following manner –
the call sign or other identification of the station called not more than 3 times; - the
words THIS IS (or DE spoken as DELTA ECHO in case of language difficulties); -
the call sign or other identification of the calling station, not more than three times.
Example: Novorossiysk Radio UDN
         This is m/v Catherine SXFP
      When calling a VHF coast station operating on more than one channel a ship
station calling on a working channel should indicate the number of that channel in
call. When the coast station is fitted with equipment for receiving selective calls,
the coast station shall call the ship by transmitting the appropriate code signals. A
radiotelephone ship station calling a coast station should use for the call in order of
preference: a) a working frequency on which the coast station is keeping watch; b)
the carrier frequency 2,182 kHz.
      If contact is established on the carrier frequency 2,182 kHz, coast and ship sta-
tions shall transfer to working frequencies for the exchange of traffic. When calling
a coast station or another ship station a ship station shall indicate the frequency on
which a reply is required if this frequency is not the normal one associated with the
frequency used for the call.
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