Sailor RT5022 VHF DSC, Руководство по эксплуатации

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7
Basic
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2 Basic DSC operations
When switched on, your VHF automatically monitors channel 70 for incoming DSC calls.
2.1 Menu operation
To operate DSC functionality the menu system is used. The main menu can be activated by
pressing . From the main menu all parts of the menu tree can be reached (see
chapter: Menu tree).
All menus have a unique hierarchical number. The main menu is the only menu which does
not have a number. The number is (to a certain level) displayed in the upper right corner of
the screen. If more than 6 items are available in the menu, arrows will indicate if remaining
items are to found above ( ) current items or below ( ) current displayed menu
items.
The active menu item is highlighted. A press on or will move the focus.
A press on will select the item which is currently in focus.
A press on any of the numeric keys (1 to 9) in a menu will quickly select the menu item
having the corresponding number.
A press on will return to the previous menu window (normally one level up). If
is pressed in the main menu, the menu will be turned off.
Selecting the menus for transmitting DSC calls will lead to a sequence of windows (flows).
The flow sequences are controlled by the (accept and proceed to next window) or
(cancel and return to the previous window) buttons.
Following a menu hierarchy or a window flow might include a guidance text (e.g. “OK/next”
). Certain windows and lists do not show any guidance texts. These windows can
always be left by (jumping to main menu) or (returning to the previous
window).
2.2 Receiving a DSC call
An incoming call will always be recognized by activity on the CALL indicator – and if more
severe (Distress and Urgency calls), also the ALARM indicator. When receiving a DSC call
the message will be displayed immediately in the information/message display, if not
obstructed by any other operations taking place. Received DSC calls will always be accom-
panied by a sound alarm.
When you receive a call you can read in the display whether the call is addressed to All
Ships, ships in a specific geographic area, a group of ships or to your ship (identified by your
MMSI number) as an individual call.