Sea kayaking means managing specific risks: sudden weather changes, unpredictable currents, and the difficulty of communicating in an emergency. VHF (Very High Frequency) marine radio is therefore an essential safety tool for paddlers who want to maximise safety at sea.
Unlike a mobile phone, whose range depends on cell coverage, a VHF uses radio frequencies dedicated to maritime communication. You can call rescue services directly — in France the CROSS (rescue coordination centres) — via Channel 16, the international distress and calling channel. You’ll also receive regular marine weather bulletins, crucial for adapting your route or avoiding hazardous conditions.
Handheld VHF: a sea-kayaker’s ally
Sea kayakers use handheld VHFs that are compact and built for wet environments. Most models are waterproof and many are floatable — vital if you capsize. Typical range is about 5–10 nautical miles (terrain and antenna height dependent), far better than mobile coverage offshore, which often drops out a short distance from the coast.
VHF rules in France
In France, VHF use is regulated and depends mainly on your distance from a “place of safety” (a location where you can quickly take shelter):
- Up to 2 NM from a place of safety: VHF is not mandatory, but strongly recommended for all leisure craft, including kayaks. In an emergency, VHF reaches rescuers quickly — especially where mobile networks are patchy.
- Beyond 2 NM from a place of safety: a VHF is mandatory for sea kayakers. It must be handheld, waterproof and floatable. Clip it to your PFD so it’s accessible at all times.
Licences and legal requirements
If your VHF has DSC (Digital Selective Calling) — which can transmit an automatic distress alert with your GPS position — you must hold the CRR (Certificat Restreint de Radiotéléphoniste), issued by the French spectrum agency (ANFR). A CRR is not required for non-DSC handhelds up to 6 W used in French waters.
Outside French waters (international waters or foreign jurisdictions), a radio operator certificate such as the CRR is generally required. Always check the latest rules with ANFR and the local authority before departure.
How to use your VHF: simple practices that save time
- Keep a watch on Channel 16: Always monitor 16 for distress and calling. After placing a distress or initial call, switch to a working channel as directed.
- Learn the distress procedure: For a serious emergency (capsize, person overboard, injury), a MAYDAY should include:
- Vessel name (your kayak/call sign),
- Exact position (GPS coordinates if possible),
- Nature of the problem,
- Assistance required.
- Keep the radio accessible and powered: Clip the VHF to your PFD, not inside a hatch. Fully charge before launch; bring spare batteries or a powerbank for long outings.
- Working channels for boat-to-boat calls (France): For non-emergency coordination between paddlers or with nearby boats, use simplex working channels such as 6, 8, 72 and 77. (Channel plans vary by country — check locally.)
Why VHF beats a mobile phone at sea
Range: depending on conditions and equipment, VHF can reach 5–30 NM, while mobile signals fade quickly offshore.
Instant, open communication: Calls are heard by rescue centres and other vessels nearby, multiplying your chances of rapid help.
Mariners’ solidarity: A call on Channel 16 can be picked up by any vessel in range — not just the authorities — speeding assistance when minutes matter.
Conclusion: an essential tool for sea kayakers
Whether you’re new to sea kayaking or highly experienced, a VHF is a cornerstone of your safety kit. It gives you a direct line to rescue services, reliable weather updates, and simple coordination with your group. Master a few procedures, practise your calls, and you’ll be far better prepared for the unexpected at sea.