21 22
1. Base station: Hold down the
Cancel/IC
button until the LCD appears the dialogue
“intercom ENT
Accept”,
push
CH
to start intercom
Notes: If there is no subscribed wireless handset power on, LCD will appear “No
Remote” to indicate no remote handset active.
2. Wireless Handset: press the
Intercom
button on the side of handset, until the
LCD appears the dialogue “INTERCOM BASE STATION, PRESS ENT”, press
ENT
to start intercom
4.8.2 Internal communication
while the intercom had been build, LCD of both base station and wireless Handset will
appears “IC”
Base station and wireless handset can communicate with each other. Press “PTT” to
transmit own voice, and release to listen the opposite voice
Press
IC
again or
16
button both in base station and handset to terminate the internal
communication
5
DIGITAL SELECTIVE CALLING
5.1 GENERAL
DSC(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 had also been
designated part of the Global Maritime Distress and Safety System (GMDSS). It is
planed 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 service will also allow mariners to initiate or receive distress, urgency, safety and
routine calls to or from another vessel equipped with a DSC transceiver.
5.1.1
MARITIME MOBILE SERVICE
IDENTITY
An MMIS is a nine-digit number used on Marine Transceiver capable of using
Digital Selective Calling (DSC). This number is used like a telephone number
to selectively call other vessels. Refer to section 6.12 (USER MMSI ENTRY).
5.1.2
HOW CAN I OBTAIN A MMSI ASSIGNMENT?
Contact your dealer or NAVICOM
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 approximately 20
nautical miles.
5.2
DSC CALL TYPES
Press the
DSC/MENU
button to pop up the menu for user to select the DSC call
type to send. Note that only three calls can be shown at any one time on the
screen.
Press
+ /–
or rotate the
CH
knob scroll up and down the call types until the cursor
is positioned at the desired option.
Press
the
CH
button the call types are:
Call Type
Description
LAST CALL
Recall last call no matter what type of call received at last.
NEW CAL
L
Make a new call, by inputting the MMSI or pick up from the list
max 20
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 call.
ALL SHIPS
Make an Urgency, Safety or Distress call to all ships. A re-
confirmation screen follows the priority selection of Urgency,
Safety or Distress. Such call will be sent out when assistance
need but the situation not is so serious enough for a Distress
Call. Urgency call is made when assistance required but not
life endanger while Safety call is for advisory alert.
CALL LOG
Allow a review of all stored Calls by number and time of call.
An individual call type can be placed to the selected
MMSI/NAME in the LOG. The LOG maintains all received call
types except DISTRESS calls. The call at the end of the list is
automatically erased. The earliest call stored at the end of the
list.
There is 20 calls could be stored.
DISTRESS
LOG
Allow a review of all stored Distress calls by number and time
of call. An individual call type can be placed to the selected
MMSI / NAME in the LOG. The call at the end of the list is
automatically erased. The earliest call stored at the end of the
list. There is also 10 calls could be stored.
POS
REQUEST
The option enables you to request GPS position information
from any vessel for which an MMSI number is known, such
request can pick up from buddy list.
DISTRESS
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Summary of Contents for RT-650
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