1 Terms of Reference

  .1 advise Administrations planning to implement a NAVTEX service on the frequencies 518 kHz, 490 kHz or 4209·5 kHz, on the operational aspects of the system. In particular, advise on the optimum number of stations, the allocation of transmission identifying characters (B₁) and broadcast message criteria;

  .2 co-ordinate with Administrations over the operational aspects of NAVTEX in the planning stages in order to prevent mutual interference owing to the number of stations, transmitter power, or transmission identifying character assignment;

  .3 remain aware of system problems which arise, through reports from sea and correspondence with operational NAVTEX Co-ordinators. When problems are identified, liaise with appropriate Administrations involved, NAVAREA Co-ordinators, METAREA Issuing Services, the Sub-Committee, IHO or WMO, as appropriate, recommend solutions or mitigating measures and, when agreed, co-ordinate their implementation; and

  .4 prepare documentation supporting the system for the Sub-Committee, including both that needed by Administrations to guide their operations, and that needed to inform the user of the service (mariner, shipowner and operator).