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7. NBDP SYSTEM OVERVIEW
7-9
Function key F7: WRU (Who Are You?)
In the ARQ mode, request other station's answerback code.
Function key F8: HR (Here Is)
In the ARQ mode, send your ship's answerback code.
Function key F9: OVER
In the ARQ mode, switch the direction of traffic; the information receiving station
switches to the information sending station, the information sending station switches
to the information receiving station.
Menu item Function
[Setup] Lock, change settings, restore default system settings.
[Slave Delay] Set the length of the slave delay timing from the end of RX to the start
of TX in the ARQ mode. The default setting is suitable in most cases.
This item cannot be adjusted by the user.
[TX/RX MSG
Save]
Turn on to automatically save incoming and outgoing messages to a
floppy disk or a SD card. "Log" appears at the top of the screen when
on.
[Edit Before
sending]
[OFF] transmits key operation one by one. [ON] transmits message
only when the Enter key is pressed after confirming text typed.
[TX POWER]
(only for
IB-585)
Change output power during transmission. ([HIGH], [MID], [LOW] (for
FS-1575/2575), [LOW1] (for FS-5075), [LOW2] (for FS-5075))
[Header/Foot-
er] (only for
IB-585)
Turn on or off the indication of header and footer. When starting trans-
mission, display time & date for starting transmission, MMSI for com-
munication party, TX and RX frequencies. When ending transmission,
display time & date for ending transmission.
[Time System] Select time system.
[OFF]: No time indication, [UTC]: Coordinated universal time,
[SMT]: Local time, [JST]: Japan standard time
[Time & Date] Enter date and time manually. If a navigation device is connected, the
time is automatically set when the power is turned on or whenever the
time system is switched. Manual entry takes priority over automatic
entry. This item cannot be adjusted when using [UTC] or [JST].
[Window
Color]
Select display colors. For details, see section 8.6.
[Self Test] Start diagnostic test.
ARQ
mode
signal
sequence
3 char. RX
3 char. RX
Slave Delay
Timing
RX end
TX start
ACK signal