Users Manual

Names and Functions

2-7

(2) Operating screen for DSC calls

When communicating using DSC calls, the screen shows as follows.

・ While there is an active communication event, the DSC auto ACK function is disabled to

avoid disruption of the on-going communication.

・

When sending the “able to comply” acknowledgement against the received message

requesting the radiotelephone communication, lifting the handset is also available instead

of touching the ACK button.

・

When touching the NEW CH or NACK button, the dedicated popup screen is appeared.

・

When sending an acknowledgement automatically to the receiving calls such as position

request, safety test, polling, or the call requesting communication with an invalid channel,

the above screen is shown and starts sending automatically. After finishing it, that screen

is closed automatically.

1 Indicates the DSC message information.

RXID or: Shows the received ID (sender MMSI) or transmitted ID (receiver MMSI).

TXID Additionally, the following special marks may be indicated on this line.

- Any error (ECC error) character is detected. : E

- DSC event is started by a delayed acknowledgement. : D

CATE: Indicates the category of the DSC message.

ROUTINE, SAFETY, URGENCY, or DISTRESS

TYPE: Indicates the type of the call or the acknowledgement as follows.

DISTRESS, GROUP, ALL SHIPS, INDIVIDUAL, DISTRESS RELAY, or

NO INFORMATION

W-CH: Indicates the work channel and the communication mode if used for the call.

STAT: Indicates the progress state of the DSC call event and the elapsed time.

2 Indicates the handling menu buttons concerning the DSC call event.

[ACK]: Accepts the call and sends the acknowledgement.

[NACK]: Sends “unable to comply”.

[NEW CH]: Sends the acknowledgement with new work channel.

[INF]: Displays the received message in detail.

[ACT/HOLD]: Switches the event state between Active and On hold. The showing description

(ACK or HOLD) is changed each other, and is the current condition.

[END]: Terminates the call.

3 Touching this button displays the previous screen.

Note