Ship Radio, Portable Licences and Identities
The Ofcom licence covering equipment, the difference between vessel and portable licensing, and correct handling of call signs and MMSIs.
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
The Ofcom Ship Radio or Ship Portable Radio Licence authorises the installed or portable transmitting equipment; it is separate from the operator's personal SRC.
Exam cue: Check whether the set belongs to one named vessel or is licensed as portable equipment.
Concept 2
A ship call sign and ship MMSI identify the vessel and normally remain with it, while a portable DSC MMSI identifies the licensed portable unit under its own conditions.
Exam cue: Verify licence, call sign, MMSI and emergency contact data before departure.
Concept 3
Equipment and identity details must be kept current, and the MMSI programmed into DSC equipment must match the licence and vessel or portable-radio identity.
Exam cue: After sale or ownership change, follow Ofcom's licence process while retaining the vessel's assigned identities where required.
Risk pitfalls and guardrails
Assuming buying a licensed boat transfers the seller's licence to the buyer.
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.
Programming a vessel MMSI into an independently licensed portable DSC radio without checking its licence.
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 an SRC card as the licence for the transmitter.
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
Station Licence
Ofcom authorisation for the transmitting equipment and its assigned identities.
Operator Certificate
Personal evidence of competence and authority to control radio operation.
Call Sign
The internationally assigned voice identity of the ship station.
MMSI
The nine-digit digital identity used by DSC and associated maritime systems.
Licence and SRC
Lawful routine operation normally needs both licensed equipment and qualified control.
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
Which Ofcom licence is normally tied to the installed radio equipment on one named UK ship?
A kayaker uses one self-contained handheld VHF on different craft within UK territorial seas. Which licence class is designed for that pattern?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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