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32 Ray54E VHF Radio
include Automatic Transmitter Identification System (ATIS) functionality. If
ATIS has been enabled, certain programming steps have been implemented
to protect the integrity of this agreement, including the blocking of DSC
functions when ATIS is active. See ATIS Function on page 79.
5.1 DSC Call Function
DSC Call Mode is used to initiate DSC Individual, Group, All Ships, Distress
and Position Request calls and to access the DSC Call Logs and Phonebook.
The channel remains unchanged and you can perform normal TX operation.
DSC mode is exited when transmitting.
Press and release the CALL/MENU key while in normal operation mode to
enter DSC Call Mode.
Note: Distress calls are made using the DISTRESS key.
The Ray54E’s DSC Call type and structure are as follows:
DSC Call Type Description
INDIVIDUAL Makes a ROUTINE DSC call to a specific station identified by its MMSI
number.
GROUP Sends transmissions that are only received by radios that share a common
Group MMSI number. Up to 3 Group MMSI numbers can be stored and
called.
ALL SHIPS Sends out a message to all ships within range that you need assistance but
the situation is not serious enough for a Distress Call. All Ships calls should
only be used if hailing for assistance on channel 16 fails. There are two
types of All Ships Calls: SAFETY for advisory alerts and URGENCY for assis-
tance when life is not in immediate danger.