About the SRC VHF Marine Radio Certificate
The Short Range Certificate (SRC) is the minimum qualification required to operate VHF (Very High Frequency) radio equipment on a vessel in UK and international waters. It is a requirement under the International Telecommunication Union (ITU) Radio Regulations. The SRC is issued under the authority of Ofcom and delivered by approved providers including the Royal Yachting Association (RYA). The qualification covers the safe and correct use of VHF marine radio and the GMDSS (Global Maritime Distress and Safety System).
The assessment covers four core areas:
- GMDSS and DSC: the Global Maritime Distress and Safety System, how Digital Selective Calling (DSC) works, MMSI numbers, distress alerts, and how to respond to a DSC distress signal
- Distress and Safety Procedures: Mayday procedure (distress), Pan-Pan procedure (urgency), Securité procedure (safety), structure of distress calls, search and rescue coordination with the Coastguard
- VHF Operating Procedures: Channel 16 (international distress and calling), working channels, weather forecasts (Channel 67), marina and port procedures, the phonetic alphabet, correct radio technique
- Equipment and Regulations: types of VHF radio (fixed and handheld), DSC controller, EPIRB and PLB awareness, radio licence requirements, Ofcom licensing, legal obligations
Assessment includes a multiple-choice written exam and a practical radio operating assessment. Both must be passed. The certificate is valid for life, no renewal required.
Important: Operating a VHF marine radio without a licence or certificate is an offence under the Wireless Telegraphy Act 2006. Both the operator (SRC) and the vessel (Ship Radio Licence, £20/year) must be licensed. In an emergency, an incorrect or incomplete Mayday call can delay rescue, knowing the correct procedure precisely could save lives.
Key SRC Marine Radio Facts to Know
- Channel 16: The international distress, safety, and calling channel, must be monitored whenever the radio is on
- Mayday call structure: MAYDAY × 3, THIS IS × 3 (vessel name), position, nature of distress, persons on board, any other information, OVER
- DSC: Digital Selective Calling, pressing the red distress button on a DSC-equipped radio sends an automated Mayday signal including MMSI and (if GPS-linked) position
- MMSI: Maritime Mobile Service Identity, a 9-digit number unique to each vessel, used by DSC to identify the source of a distress alert
- Phonetic alphabet: Alpha, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliet, Kilo, Lima, Mike, must be known perfectly
- Pan-Pan vs Mayday: Pan-Pan = urgency situation, not immediate danger to life. Mayday = immediate danger to life or vessel
- Certificate validity: Life, the SRC does not expire and does not require renewal
- Ship Radio Licence: Required separately from the SRC, issued by Ofcom, renewable annually, approximately £20/year
RYA course materials provide a foundation but no standalone practice exam questions. Practice Tests UK fills that gap with 100+ realistic SRC questions across all four topic areas with step-by-step explanations for every answer.
| Feature | RYA Course Materials | Practice Tests UK |
|---|
| Practice questions | Limited | 100+ questions |
| Answer explanations | None | Every question |
| Instant feedback | No | Yes |
| Progress tracking | No | Yes |
| Drill by topic area | No | Yes |
Free sample: Try 10 free questions below. Use Drill Mode to focus on the area you find hardest.
