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4.6.2
Tri-watch
Press and hold Watch key to activate the TRI WATCH mode.
Monitor the current channel, CH 16 and CH 9 in cycle. Icon "TRI"
will be turn ON
To quit the mode, press WATCH, 16/9,DSC/MENU, CANCEL key,
Press PTT key to TX mode of current channel
4.7
POSITION INDICATION
Your transceiver can display the position of the vessel's (longitude and
latitude) as well as time and date information, if connected to a GPS
receiver; if no GPS equipment to be connected,an alert tone of 1-minute
duration witch can cancelled By any button is sounded at 4 hour
intervals to encourage manual input of positional data . Once no manual
input is made for 23.5 hours, GPS disappears from the screen, the
position data transmitted goes to 9's and all the time data goes to 8's.
DISTRESS
23'20.1234 N
100'15.1002 E
08:10PM UTC
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 the nine 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).
Page 19
5.1.2
HOW CAN I OBTAIN A MMSI ASSIGNMENT?
Contact your dealer or techsolic
WRANING
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 channel70 distress and safety watch system.
The range of signal may very but under normal conditions should be
approximately 20 nautical miles.
5.2
DSC CALL TYPES
Press the DSC/MENU key to pop up the menu for user to select the DSC
call type to send. Note that only four 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 knob the call types are:
Call Type
Description
LAST CALL
Recall last call no matter what type of call received at
last.
NEW CALL
Make a new call, by inputting the MMSID 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 routine call to all ships. A
re-confirmation screen follows the priority selection of
Urgency, Safety or routing. 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 MMSID/NAME in the LOG. The LOG
maintains all received call types except DISTRESS
.
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