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10. NBDP TRANSMISSION, RECEPTION
10-5
10.3 FEC Mode Operation
The FEC mode transmits the same data twice for less errors.
1. Press the function key F3.
2. Press the 1 key to open the [Call Station] menu.
3. Press the ↑ or ↓ key to select a station which is registered for the FEC mode.
4. Press the Enter key. "Connect" appears in reverse video.
5. Transmit a message directly input from the keyboard, or do the following to trans-
mit a message stored on a floppy disk or an SD card:
1) Press the function key F3 then the 3 key to select [File to Send].
2) Press the ↑ or ↓ key to select the file to send then press the Enter key.
6. After the message is transmitted, press the function key F10 to disconnect the
line.
Note 1: When communication is force-quitted by control display, some of the final
characters may not be sent to the receiving station.
Note 2: When continuous transmission on the FEC mode exceeds one minute, the
output power is automatically reduced to low to prevent overheating.
10.4 How to Select Reception Mode
1. Press the function key F3 then the 6 key to open the [Manual Reception] menu.
2. Press the ← or → key to select the reception mode:
[AUTO]: Automatic reception in ARQ or FEC mode
[ARQ]: International radiotelex ARQ mode
[FEC]: International radiotelex FEC mode
3. Press the Enter key. The reception mode appears on the screen.
4. Press the F3, and 9 or 0 key then wait for connection.
When a call to your ship is detected, [Lock] is highlighted. After the synchroniza-
tion is completed, the line is connected. [Connect] is highlighted.
All received (and transmitted)
messages are saved to a floppy
disk or an SD card when [TX/RX
MSG Save] is [ON] in the [System] menu. The file is automatically named (see the
figure).
5. After receiving the EOC, NBDP reception is automatically canceled. NBDP recep-
tion can also be canceled manually with the F10 key. The equipment goes into
standby mode.
Note 1: For NBDP activated by the DSC function, select [QUIT] option on the control
panel to cancel reception mode and go to the standby mode.
Note 2: During reception in FEC mode, the characters which are not detected be-
cause of reception error are displayed as "*".
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