Maritime English
External Communication

What is Frequent Interference?

Frequent Interference Repeated radio noise or overlapping transmissions that degrade VHF communication quality on the working channel.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “Frequent Interference” Used in Practice?

All stations, Port Control reports frequent interference on channel 12; vessels inbound switch to channel 14 to avoid congestion.

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 Frequent Interference?

Repeated radio noise or overlapping transmissions that degrade VHF communication quality on the working channel.

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