AE–1800 Instruction Manual
Typical NAVTEX Message Screen
1. Typical NAVTEX Message Screen (
continued – 2/6
)
1.1. Introduction (
continued – 2 /5
)
③Message Scrolling Keys
The keys that can be used to manually scroll messages across the current screen
are indicated.
・ : Line–by–line scrolling by pressing /
・: Message–by–message scrolling by pressing
/
NOTE: When a type–D message (SAR, piracy and armed robbery information) is
received on either the first or second receiver, automatic scrolling will be disabled until
the user acknowledges the
message with
or with a software command from an
IBS/INS terminal via the rear–panel
RS–422
connector. See paragraph 7.4 for details.
④Receiver Operating Status Indication
The current status of receiver operation is indicated here.
・ABORTED: The receiver has failed to lock onto the current transmission,
due, for example, to weak signal level or noise interference.
No message will be displayed or stored.
NOTE: Signal propagation conditions change greatly with time.
You might not be able to receive a signal in the daytime that can
be received at night; this is normal and should not be considered
as a sign of receiver malfunction.
・ACQUIRING: The receiver is currently in the process of locking onto the
start of the current message transmission.
・LOCKED: The receiver has locked onto current NAVTEX transmission,
allowing a message to be received. As soon as the equipmet
starts receiving the message, this indication will be replaced
by RCVNG MSG.
・RCVNG MSG: The receiver is properly receiving a message after locking
onto current transmission. This blinking indication will stay
until the end–of–message code NNNN (⑩) is received.
NOTE: Whether to display or output the message to external
devices depends on the character error rate
(CER, ⑫)
and on
the selection/rejection settings to be made via the procedure in
paragraph 4.8.
・STANDBY: The receiver is idling, waiting for a NAVTEX message
transmission to begin. Most stations transmit messages every
4 hours.
⑤Operating Status Line
The current status of receiver operation, text scroll keys, etc. are indicated here.
Examples:
・1ST RCVR MSG: Message received on the first receiver is currently displayed.
・2ND RCVR MSG: Message received on the second receiver (490 or 4209.5 kHz)
is currently displayed.
・ : Message can be scrolled line by line by pressing /.
・STANDBY: Receiver is idling, waiting for a NAVTEX message
transmission. See ④above for details.
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