Native American smoke signals

Native American tribes used smoke signals, creating distinct puffs of smoke to convey messages. This visual communication method relied on a prearranged code understood by both sender and receiver, much like Morse code in amateur radio. Smoke signals exemplify the fundamental amateur radio principle of shared understanding and coded communication. The reliance on visibility and environmental conditions for effective message relay parallels the considerations amateur radio operators must account for, such as atmospheric conditions and signal clarity, ensuring messages are transmitted accurately and efficiently over long distances.