What is an important factor when choosing a distress signal?

Choosing a distress signal primarily hinges on its visibility and range, ensuring it can be effectively perceived by rescuers. A successful distress signal must be sighted quickly and from a significant distance to maximize the chances of a swift response to the emergency situation. This encompasses considerations like the signal's brightness, size, and whether it is designed to stand out against its environment, especially in varied weather conditions and at different times of day.

While the color of the signal, type of equipment available, and weather conditions all play roles in how effective a distress signal may be, they are secondary to the crucial aspect of visibility and the range at which rescuers are able to detect the signal. Fundamentally, if the signal cannot be seen or heard from a sufficient distance, its entire purpose is undermined.