What is the correct signaling pattern for distress using signaling devices?

The correct signaling pattern for distress using signaling devices is the repeated use of three signals in a row. This pattern serves as a universally recognized call for help and is emphasized in various maritime regulations and emergency signaling conventions. The three signals are often repeated to ensure that they are noticed and understood by others nearby, such as other vessels or rescue teams. This method of signaling is designed to convey the urgency of the situation clearly and effectively.

The other patterns listed, while they may be used in different contexts or for other signaling purposes, do not specifically represent a recognized distress signal as effectively as the repeated three signals. For example, continuous sound could be misinterpreted or not provide the needed clarity for rescue. Two long blasts followed by one short may be used in particular communication scenarios but do not conform to the standard distress signaling conventions. Similarly, one long and one short blast is typically associated with a navigation signal rather than a distress call. Understanding these distinctions is crucial for effective communication in emergency situations at sea.