■ Distress alert transmission procedures(JRC, Inmarsat-C, JUE-85C)

• Do not request the distress alert except in an emergency
• The distress alert is routed to RCC(Rescue Cordination Center)

■ DSC Test Call (JRC, MF/HF Radio, JSS-296/596/896)

■ Distress Realy Call (JRC, MF/HF Radio, JSS-296/596/896)

 Procedure for a distress relay call to all ships

■ Distress ACK Call (JRC, MF/HF Radio, JSS-296/596/896)

Transmit the distress acknowledge call to the ship in distress only when you do not receive
it from a coast station and you are able to aid the ship in distress.

■ Individual Acknowledge Call (JRC MF/HF Radio, JSS-296/596/896)

When an andividual call is received, The automatic acknowledge will be sent.
But If you want to send acknowledge by manual, Do as follows

■ Sending an Individual Call (JRC, MF/HF Radio, JSS-296/596/896)

■ Part names and functions 2 (JRC, MF/HF Radio)

■ Part names and functions (JRC, MF/HF Radio, JSS-296/596/896)

■ Receiving Distress Calls (Attention)

■ Transmitting a distress call 2 (JRC, MF/HF JSS-296/596/896)

■ Transmitting a distress call 1 (JRC, MF/HF JSS-296/596/896)

■ ITU SSB frequencies (ITU RR Appendix 16)

1. For SSB(Radio telephone) communication between ships, You should use SIMPLEX channel as below
2. For SSB communication with public radio station(ex, Seoul Radio Station), You should use DUPLEX channel as below mentioned table
3. You can find this table at Appendix 4 of operator's manual

Practices

1. ITU channels are:
   1) Internationally standardized assignments of frequency pairs for common use.
   2) Frequency assignments specific to U.S. vessels only.
   3) VHF-FM frequencies.
   4) International Traffic Utility frequencies.
2. Which of the following defines "ITU Channel 816"?
   

   1) Ch-16 in the 8 MHz band.

   2) Ch-8 in the 16 MHz band.
   3) Ch-816 in the MF band.

■ Requesting other ship's position (FURUNO, MF/HF FS-2570)

■ Position call (FURUNO, MF/HF Radio - FS-2570)

■ Sending Medical Call (FURUNO, MF/HF-FS2570)

■ Geographical Area Call (FURUNO, MF/HF Radio-FS2570

■ Sending a Test call with RCC (FURUNO, MF/HF FS-2570)

■ Sending an individual call (FURUNO, MF/HF, FS-2570)

■ Sending the distress relay to coast station (on HF band)

■ Actions for ships receiveing distress alert on HF band

■ Receiving a Distress Alert

■ Sending distress alert by DISTRESS button, nature of distress specified (FURUNO MF/HF, FS-2570)