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What Does 10-4 Mean? The Meaning & Origin

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What Does 10-4 Mean? 10-4 is a common radio response used in the United States as a means of acknowledging an incoming transmission. It translates to "I received your message loud and clear" or "understood."

What does 10-4 mean?  10-4 is a common radio response used in the United States as a means of acknowledging an incoming transmission. It translates to “I received your message loud and clear” or “understood.” The use of 10-4 has become so widespread among American police officers on police radio that it is sometimes referred to simply … Read more