Vertex Standard VM-3500E ユーザーズマニュアル

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VM-3500E
Page 32
9  DIGITAL SELECTIVE CALLING
9.1  GENERAL
WARNING
This radio is designed to generate a digital maritime distress and safety
call to facilitate search and rescue. To be effective as a safety device,
this equipment must be used only within communication range of a shore-
based VHF marine channel 70 distress and safety watch system. The
range of signal may vary but under normal conditions should be approxi-
mately 20 nautical miles.
NOTE
A DSC Warning sticker is included
with the VM-3500E. This sticker  is
mounted in a location that can be eas-
ily viewed from the location of the VM-
3500E. Make sure the chosen loca-
tion is clean and dry before applying
the sticker.
Digital Selective Calling is a semi-automated method of establishing a radio
call, it has been designated by the International Maritime Organization (IMO)
as an international standard for establishing VHF, MF and HF radio calls. It has
also been designated as part of the Global Maritime Distress and Safety Sys-
tem (GMDSS). It is planned that DSC will eventually replace aural watches on
distress frequencies and will be used to announce routine and urgent maritime
safety information broadcasts.
This new system allows mariners to instantly send a distress call with GPS posi-
tion (when connected to the transceiver) to the Coast Guard and other vessels
within range of the transmission. DSC will also allow mariners to initiate or receive
Distress, Urgency, Safety, Routine, POSITION REQUEST, POSITION SEND, and
Group calls to or from another vessel equipped with a DSC transceiver.
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JKL
D I ST R E S S
PULL OPEN
WARNING
STICKER