General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 16725-1997
Scope
This standard specifies the technical requirements for global maritime distress and safety system (GMDSS) marine SSB receivers and transmitters [including medium frequency (MFA) transceivers and medium frequency (MF/HF) transceivers]. This standard is applicable to all passenger ships and cargo ships of 300Gt (gross tonnage) and above, oil tankers, fishing boats, icebreakers, scientific research ships, water engineering operation ships and tugboats of 368KW and above in all ocean navigation areas.
GB/T 16725-1997 history
1997GB/T 16725-1997 Technical requirements for transmitter and receiver in globle marine distress & safty system