■ 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.