Dec. 21 2016 Home Class & statutory COMPLIANCE FOR GMDSS HF NBDP CHANNELING REQUIREMENTS LinkedIn Twitter Facebook share Convention SOLAS CH IV Radiocommunications Flag ALL FLAGS Ship typeAll Sea going Ship types Reminder from Marshall Islands of the 2012 Radio Regulations The Republic of the Marshall Islands (RMI) Maritime Administrator (the “Administrator”) has issued the following attached Marine Safety Advisory (MSA) which concerns the compliance for GMDSS HF NBDP channeling requirements.The IMO now requires that high frequency (HF) radiocommunications equipment capable of operating narrow-band direct printing (NBDP) be updated to meet the new channeling arrangements, contained in the 2012 Radio Regulations HF, Appendix 17, Part B, Sections II and III (HF direct-printing telegraphy), by the first safety radio survey after 01 January 2024. MSAdvisory_40-16 Download