SRH Marine

What is new?

To ensure Global Maritime Distress and Safety System (GMDSS) communication capability, the IMO has issued MSC.1/Circ.1460 Guidance on the validity of radio communications equipment installed and used on ships requiring that high frequency (HF) radio communication equipment capable of operating narrow-band direct printing (NBPD) is updated.

Following the first radio survey after 1 January, 2024 NBPD must meet the channeling arrangements reflected in sections II and III of part B in appendix 17 of the 2012 Radio Regulations. HF NBPD is also known as HF direct-printing telegraphy.

What does that mean?

If existing equipment is unable to comply with the Radio Regulations it will need to be replaced. The newly installed HF NBPD equipment should suitably type approved.

Appendix 17 - ANNEX 1 of 2012 Radio Regulations contains frequencies and channeling arrangements in the high-frequency bands for the maritime mobile service, in force until 31 December 2016

Appendix 17 - ANNEX 2 of 2012 Radio Regulations contains frequency and channeling arrangements in the high-frequency bands for the maritime mobile service, which enter in force on 1 January 2024

What to do?

Check your Cargo Ship Safety Radio Certificate (Form R) if NPBD (Called also sometimes HF direct-printing telegraph) is fitted or not. If not then this regulation does not apply. If YES please note below reccomendation points:

  • Shipping companies should ensure that tha Makers of the equipment installed onboard their ships, have issued guidance on the specific models and follow their recommendations. These should be forwarded onboard and attached (Recommended) to the Radio Log book for easy reference during inspections.
  • Confirm with Makers if any hardware or any upgrade in software is needed. If YES, any needed actions to be arrange prior 01/01/2024.
  • Check with your Administration and/or Class Society if there is a specific Guidance.
  • Check that latest Appendix 17 - Annexes 1 and 2 are available onboard (recommended to be attached in the Radio Log Book so Officers in charge to be aware of the forthcoming changes).
  • Ask in the first scheduled radio survey even before 01/01/2024 the Radio Company attending to verify the new regulations, reported in the service report and have it as evidence once this will be requested.

Please contact


for more details and further actions to be taken