Ship, Coast, Port and Public Correspondence Calls
Choosing the correct procedure for inter-ship, Coastguard, harbour or VTS calls and understanding the syllabus boundary around public correspondence.
How to prepare for the Marine Radio SRC
Build from station licensing and radio controls to disciplined voice and DSC traffic, then rehearse distress, urgency, safety, false-alert and GMDSS decisions on training equipment.
Core concepts
Concept 1
Inter-ship routine traffic should move to an authorised inter-ship working channel, while channel 13 is primarily for bridge-to-bridge navigation safety communication.
Exam cue: Consult the current almanac, port information or radio list for station identity and channel.
Concept 2
A coast, harbour or VTS station may specify the working channel and local reporting format; port channels are confined to movement, operations and safety.
Exam cue: Use the service's own reporting format and keep navigation-safety traffic separate from routine chat.
Concept 3
Public-correspondence and duplex principles remain syllabus knowledge, but the operator must verify whether a current coast service is actually available rather than assuming a telephone link exists.
Exam cue: For a coast-station DSC call, follow the acknowledged working channel and know which station initiates voice.
Risk pitfalls and guardrails
Using channel 13 for ordinary social conversation.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Treating a port or VTS channel as a general calling channel.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Assuming a historic ship-to-shore telephone service is available without current confirmation.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Memory anchors
Inter-Ship Working
Use an authorised routine ship-to-ship channel after initial contact.
Channel 13
Primarily bridge-to-bridge navigation safety communication.
Port Purpose
Port channels are restricted to movements, operations and safety.
Coast Chooses
A coast station may designate the working voice channel in its DSC acknowledgement.
Verify Service
Check current publications before relying on public correspondence facilities.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A yacht wants to report arrival to a VTS. Where should the skipper find the correct channel and report format?
What is channel 13 primarily for?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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