Maritime English
External Communication

What is No Response?

No Response Phrase used to indicate that a called station has not replied within a reasonable time, requiring repeat or escalation of the call as per radio protocols.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “No Response” Used in Practice?

VTS to vessel Oscar, no response to repeated calls on VHF channel one-two. If you copy, reply immediately and confirm your position.

Certification Exam Relevance

STCWMarlins TestISF WatchkeeperGMDSS

Who Needs to Know This Term?

  • Deck Officers
  • Engine Officers
  • Masters

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Frequently Asked Questions

What is No Response?

Phrase used to indicate that a called station has not replied within a reasonable time, requiring repeat or escalation of the call as per radio protocols.

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