Navman VHF 7000, Owner'S Manual

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Chapter 5 - Sending and Receiving DSC Calls
5.1 WHAT IS DSC?
DSC (Digital Selective Calling) is a semi-automated method of establishing VHF,
MF, and HF radio calls. It has been designated as an international standard by
the IMO (International Maritime Organization) and is part of the GMDSS (Global
Maritime Distress and Safety System).
Currently, you are required to monitor Distress Channel 16, but DSC will
eventually replace listening watches on distress frequencies and will be used
to broadcast routine and urgent maritime safety information.
DSC enables you to send and receive calls from any vessel or coast station that
is equipped with DSC functionality, and within geographic range. Calls can be
categorised as distress, urgency, safety, or routine, and DSC selects a working
channel automatically.
5.2 SENDING DSC CALLS
1. Press CALL MENU to show the types of DSC call that can
be made.
Note that only four DSC call types can be shown at any
one time on the LCD menu.
2. Press + or - to scroll up and down the DSC call types
until the cursor is postioned at the desired option.
Then press ENT. The DSC call types are:
These DSC facilities are available only on the
VHF7100 USA and VHF7100 EC models, and a valid
user MMSID must have been entered to access the
INDIVIDUAL
INDIV ACK
LAST
GROUP
ALL SHIPS
CALL LOG
DISTRESS LOG
Make a manual call or reply to a new caller or a buddy.
See Section 5.2.1 and 5.2.2.
Make a call to one of your three groups.
See Section 5.2.5.
Show the details of the most recent incoming call.
See Section 5.2.4.
Make an urgent, safety, or routine call to all ships USA??
See Section 5.2.6.
Show the details of the 20 most recent incoming calls.
See Section 5.2.7.
Show the details of the 20 most recent distress calls.
See Section 5.2.8.
See Section 5.2.3 TBS