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4.5 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.
1.GPS INDICATOR
“GPS”
appears while GPS receiver is connected.
“GPS”
disappears while no GPS receiver is connected.
2. POSITION INDICATOR
Shows the GPS position data or the position data is input manually
3.TIME INDICATOR
Shows the GPS time date or the time date is the radio’s clock time
“local”
appears when the offset time date on the “set- up” menu are
entered. and no GPS receiver is connected
UTC”
appears when the position date is input manually
@ NOTE
: if GPS data is interrupted for 2 minute the radio unit on LCD display
‘PLEASE INPUT POSITION!‘ and an alert tone is sounded “GPS”
disappear. “UTC” appears instead of “GPS” at 1minute.Time go on
according to the radio unit’s clock
The position data retains the most recent date in such cases.
If no GPS receiver is connected. After to turn on power, LCD display
time go on according to the radio unit’ s clock time for 10 mi n LCD
display appears ”PLEASE INPUT POSITION” and the alert tone is
sounded to encourage manual input of the position
DIGITAL SELECTIVE CALLING
5.1
INTRODUCTION
5.1.1 DIGITAL SELECTIVE CALLING (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.
5.1.2 MARINE MOBILE SERVICE INDENTITY (MMSI)
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).
5.2
DSC MENU NAVIGATION
Once in DSC mode, the
Channel/Select
key is used to select items within the
DSC Send Call menu. Rotating the
Channel/Select
knob selects successive
items within the DSC Menu (and subsequent sub- menus). When the Menu list
contains more items than will fit on the LCD, the list scrolls to reveal additional
items. Pressing the
Channel/Select
knob enters (or acts) the selected function.
At any time while in DSC Mode, pressing and releasing the
DSC
key returns the
screen to the DSC Send Call menu and aborts the current operation. Pressing
any other mode key (
BAND, MEM
) while in the DSC Mode aborts the DSC
Summary of Contents for TM-338
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