List IV contains important information for the mariner in relation to radiocommunications, including the GMDSS (Global Maritime Distress and Safety System). Detailed information such as the ...

a list of entities implementing the Arrangements either in full or in part a list of GMPCS systems authorized in each country a list of the GMPCS terminals registered at the ITU indicating their ...

Unless specified otherwise, registration to ITU-R events requires the approval of the corresponding Designated Focal Points (DFP) for ITU-R event registration. Read more on registration to ITU-R ...

Thousands of telecommunication professionals trace the beginnings of their careers to the exploration of the radio spectrum that was made possible by their early involvement in amateur radio. Many ...

The Radio Regulations, Edition of 2024, contains the complete texts of the Radio Regulations adopted by the World Radiocommunication Conference of 1995 (WRC-95) and reviewed by the subsequent World ...

New Appendix IV - Use of the E-model in conjunction with noise reduction or echo canceller systems in the network or the terminal equipment Superseded ...

1. Allocation tables - International call sign series (Appendix 42 of the Radio Regulations), Blocks of coast station identification numbers, Blocks of selective call numbers for ship stations and ...

The Global Symposium for Regulators 2025 (GSR-25) will take place in Riyadh, Saudi Arabia, from 31 August to 3 September 2025. GSR-25 will feature thematic sessions bringing together regulators, ...