IEC 61097-6 pdf download Global maritime distress and safety system (GMDSS) – Part 6: Narrowband direct-printing telegraph equipment for the reception of navigational and meteorological warnings and urgent information to ships (NAVTEX) This part of lEC 61097 specifies the minimum performance requirements, technical character-istics and type-testing requirements for narrowband telegraph equipment for the reception ofnavigational and meteorological information as required...