In addition to the satellite communication systems, having robust radio communication devices on my ocean rowing boat is crucial for ensuring safety and maintaining contact with other vessels. Two essential radios on board are the MF/HF (Medium Frequency/High Frequency) radio and handheld VHF (Very High Frequency) radio.
The MF/HF radio is a powerful communication tool that operates over medium and high frequencies, allowing long-distance communication beyond the range of VHF radios. This radio is particularly useful for contacting coast stations and other ships over hundreds or even thousands of miles, which is vital when rowing across the vast ocean. The MF/HF radio can be used to send distress signals, make routine calls to shore stations, and receive weather forecasts and navigational warnings. It operates through a transmitter and receiver that can be tuned to specific frequencies, enabling clear communication in both voice and digital formats, such as DSC (Digital Selective Calling), which is used to automate the sending of distress alerts.
On the other hand, the handheld VHF radio is a more localized communication device, essential for short-range communication, typically within a range of 20-30 miles, depending on the antenna height and atmospheric conditions. This radio is crucial for day-to-day communication with nearby vessels, harbor authorities, and rescue services. It is portable, waterproof, and designed to float, making it perfect for emergency situations where I might need to abandon my boat. The VHF radio is used for calling for help, coordinating with other rowers or support boats, and receiving updates from coastal stations. Channels are pre-programmed, with channel 16 being the international distress and calling frequency, ensuring that I can quickly get assistance if needed.
Using these radios involves regular checks and practice to ensure familiarity and reliability. The MF/HF radio requires proper tuning and antenna setup, while the handheld VHF radio should be kept charged and readily accessible. Together, these radios provide a comprehensive communication network that enhances my safety and preparedness, allowing for effective long-range and short-range communication throughout my solo ocean rowing journey.
