Which is a limitation of using a mobile phone on the water?

Using a mobile phone on the water comes with several limitations, and one of the most significant limitations is that it should not be relied upon as a substitute for a VHF radio. VHF (Very High Frequency) radios are specifically designed for marine communication, providing reliable, clear communication over distances that are crucial in emergency situations. They operate on frequencies that are less likely to be affected by geographic barriers or other interference.

Mobile phones, while they may be widely used and available for general communication, can have limitations in terms of coverage, battery life, and signal strength, especially in remote areas or during emergencies. In contrast, VHF radios can connect directly to other vessels and emergency services, regardless of cellular network availability, which can be critical when in distress on the water. Therefore, understanding that a mobile phone should not replace a VHF radio is essential for safe boating practices and preparedness during emergencies.