Radios VHF portables

The Role of VHF Radios in Sailing

VHF radios form the backbone of maritime communication. Unlike mobile phones, which are dependent on terrestrial networks, a VHF radio offers direct, regulated communication across the maritime VHF frequency band (156–174 MHz). For sailors, this ensures a consistent and dependable method to communicate with nearby vessels, port authorities, harbour masters, coastguard services, and race committees. Beyond convenience, VHF radios are a critical part of maritime safety, enabling immediate distress calls and position reporting in emergencies.

Fixed vs. Handheld VHF Radios

There are two main categories of VHF radios available for sailing yachts:

• Fixed VHF Radios: Installed at the chart table or helm, these units provide greater transmit power (up to 25 watts), ensuring long-range communication. Fixed sets often integrate with the boat’s GPS, AIS transponders, and NMEA networks, supporting DSC functionality for automated distress alerts with position data.

• Handheld VHF Radios: Compact and portable, handheld units typically transmit at 5–6 watts and are ideal for dinghy sailors, tenders, or as a backup for larger yachts. Advances in battery technology now allow waterproof and floating designs, with long standby times and clear audio performance. Handheld VHF radios are especially valued for crew members operating away from the main vessel, such as when anchoring or handling shore lines.

Digital Selective Calling (DSC) and Safety Compliance

One of the most significant advancements in marine communication is Digital Selective Calling (DSC). Modern fixed-mount radios compliant with Class D DSC standards allow skippers to transmit a distress alert at the push of a button. This automatically broadcasts the vessel’s identity and position (when connected to GPS), ensuring coastguards and nearby vessels can respond quickly. Many Icom fixed radios also support private calling between vessels, improving communication efficiency and reducing channel congestion.

Icom – A Key Brand in Marine VHF Radios

Icom is one of the leading manufacturers of marine communication equipment, known for robust construction, intuitive operation, and compliance with international standards. Icom VHF radios are widely used by both leisure sailors and professional operators worldwide.

Key technical features of Icom VHF radios include:

• Waterproof Ratings (IPX7/IPX8): Many models are fully submersible, an essential safeguard against accidental drops or heavy spray.

• Active Noise Cancelling: Helps ensure clear communication even in high wind or engine noise environments.

• Integrated GPS Receivers: Built-in GPS modules enable standalone DSC operation without the need for external connections.

• AIS Integration: Some models feature AIS receivers, allowing real-time vessel tracking directly on the radio display.

• Float ‘n Flash Technology (handheld units): A safety feature where the radio floats and activates a strobe light for easy recovery.

• Long Battery Life: Handheld Icom units often provide over 10 hours of continuous use, ensuring reliability during long passages.

Icom Handheld VHF Radio

Integration with Boat Electronics

Modern VHF radios no longer function as stand-alone units. Many models can integrate with chartplotters, AIS, and onboard NMEA 2000 networks. This integration allows DSC calls to be initiated directly from navigation systems, improving safety and efficiency. On larger yachts, remote microphones and secondary control stations can be installed, enabling the helmsman to access all radio functions without leaving the cockpit.

Choosing the Right VHF Radio for Your Vessel

When selecting a VHF radio, sailors should consider:

• Range Requirements: Offshore cruising yachts benefit from fixed radios with maximum transmit power, while dinghies or small craft may prefer lightweight handhelds.

• Safety Compliance: DSC-enabled radios are recommended to meet international safety regulations.

• Durability: Waterproofing, UV resistance, and shock resistance are crucial for long-term reliability.

• Additional Features: Integrated GPS, AIS, or noise cancellation add significant functionality for advanced users.

Maintenance and Reliability

For long-term performance, VHF radios should be regularly tested and properly maintained. Key recommendations include:

• Verifying DSC functions and GPS connections before each voyage.

• Inspecting antennas and coaxial cabling for corrosion or wear.

• Charging handheld radios fully before departure and storing spare batteries.

• Updating MMSI registration details when vessel ownership changes.

Why VHF Radios Remain Essential

Despite the rise of satellite phones and internet-based communication systems, VHF radios remain indispensable due to their simplicity, regulatory compliance, and universal adoption. In regattas, coastal cruising, or offshore passages, a reliable VHF radio is the first line of communication and safety at sea.