VHF SRC Radio 🔒 Course / Premium

DSC Routine Individual Call

DSC Routine Individual Call. Practice maritime VHF scenario.

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This scenario is part of the full library. Unlock all 15 VHF scenarios with the VHF SRC Course (€199, lifetime) or a Premium subscription (from €19.99/mo).

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Scenario briefing

Key teaching points

Select the target vessel's MMSI in the DSC menu.
Propose a working channel (commonly 6, 8, 72, 77 for inter-ship).
Send the routine call — the target radio alerts the operator and sends an automatic acknowledgement.
After ACK, both vessels switch to the proposed working channel and conduct voice contact.
Channel 70 must never be used for voice — DSC only.

Common mistakes to avoid

Voice transmission on Channel 70 after DSC routine — strict prohibition.
Not waiting for ACK before switching — the call may not have completed.

Why it matters

A DSC routine individual call lets you connect with a specific vessel by MMSI without using Channel 16 voice. It is the calling-channel function for DSC-equipped vessels and the SRC exam probes whether candidates can execute it without fumbling the menu.

Exam relevance

DSC routine individual call is examined in the VHF SRC oral; STCW GOC candidates must execute the full call-ACK-switch sequence.

Related scenarios

About SkipperCheck simulators

SkipperCheck offers two browser-based maritime training simulators:

ARPA · AIS · COLREG Bridge Simulator — 54 scenarios covering Rules 2, 5–10, 12–19, 23–30, 34 and 35.
VHF SRC Radio Simulator — 15 scenarios: voice Mayday, DSC distress, Mayday Relay, Pan-Pan, Sécurité, routine.

Both run in any modern browser, on desktop or mobile. No install, no plugins.