Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of: different types of marine radio equipment, their features, applications, operating characteristics and operating procedures GMDSS components GMDSS procedures in response to emergency situations, such as abandon ship, fire, persons in survival craft or piracy at sea hazards associated with radio transmission and the repair and maintenance of radio equipment and related hazard control measures identification of radio stations international and national radio regulations applicable to GMDSS communications, including Australian Maritime Safety Authority (AMSA) Marine Orders, International Telecommunications Union (ITU) and the International Convention for the Safety of Life at Sea (SOLAS) Chapter IV maintenance strategies and requirements for GMDSS equipment as defined in SOLAS, radio regulations and the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW) means to prevent the transmission of false distress alerts miscellaneous skills and operational procedures for general communications operational checks, including checking radio performance, measuring capacity of batteries, and measuring on and off load voltage principles and features of marine radio communications, including: correct use of frequencies, frequency bands and modes of emission definition of coverage and sea areas for digital selective calling (DSC) distress, urgency and safety communication frequencies for routine call and reply limitations on the performance of different types of marine radio equipment methods of communicating vessel position purpose of and procedures for the monitoring of calling and working frequencies purpose of silence periods when operating radio equipment radio calling, replying and relaying procedures principles of radio propagation, including: basic propagation mechanisms at low frequency (LF), medium frequency (MF), high frequency (HF) and very high frequency (VHF) classes of emission duplex, simplex paired frequencies and ITU channels frequency bands maximum usable frequency (MUF) optimum working frequency (OWF) procedures for: international phonetic alphabet and numeral code keeping records of radio communication using various GMDSS systems and services, including: current inmarsat services enhanced group calling (EGC) system MF/HF radio with narrow band direct printing (NBDP) DSC facilities and usage Enhanced group call (EGC) receiver maritime safety information (MSI) services navigational telex (NAVTEX) system SafetyNET system prohibitions on connecting non-GMDSS equipment to reserve source of supply radio communication problems and appropriate actions and solutions radio equipment faults, defects and related fault-finding techniques requirements of ship reporting systems role and method of use of ship reporting systems search and rescue (SAR) operation service publications statutory framework of the Maritime Mobile Service systems used onboard, including: automatic identification system (AIS) ship security alert system ultra-high frequency (UHF) handhelds types, applications and features of basic antenna systems used in marine radio communications use of radio medical services. |