Radio

VHF radios operate on a ‘line of sight’ principle, offering group protection by allowing many boats in the area to listen to calls. In distress situations or when a boat breaks down, VHF radio is the most efficient means of communication.

The only significant limitation of VHF Radio is that it will be useless if swamped by a wave or if the boat’s battery is underwater. A hand-held VHF that is waterproof or kept in a sealable plastic bag can be used while still inside the bag.

If you are planning to use a cellphone as your only means of communication, consider the advantages VHF has over your cellphone:

better coverage and fewer shadow areas;
collective safety with both shore stations and other boats listening. If you are in distress you want everyone possible to know;
batteries in a VHF are longer lasting;
there is no need to remember phone numbers;
you are not relying on just one person to pass on the message.

These advantages work for everyone if all vessels keep a constant listening watch on VHF Channel 16, the international distress channel. However, a cell phone that is in a sealed plastic bag and kept in your pocket may be a lifesaver if you capsize suddenly, provided you are in an area where there is coverage. Dial 111.

All operators of VHF radios must hold an operator’s qualification and need a call sign. This qualification involves about six hour’s tuition.

Every transmission must have a unique identification, so you need a call sign. Contact Coastguard Boating Education on 0800 40 80 90 for details on how to obtain a VHF qualification and a call sign.