What radio 10 code is used when you don’t understand what the dispatcher has said and you need them to repeat their transmission?10-9.10-99.10-78.10-4.

The radio 10 code used when you don’t understand what the dispatcher has said and need them to repeat their transmission is 10-9.

Explanation:

In the ten-codes (or ten signals) commonly used by law enforcement and dispatchers, each code represents a specific message to facilitate clear and concise communication.

• 10-4 means "Acknowledgement" or "Message received."
• 10-78 refers to "Request for assistance."
• 10-99 indicates "Urgent help needed."

When a dispatcher gives a transmission that is unclear or difficult to hear, the responding individual will use 10-9 to request that the dispatcher repeat their last message. This helps to ensure accurate communication, especially in critical situations where misunderstanding could lead to errors or delays in response. Using such codes allows for efficient exchanges without lengthy explanations. Hence, 10-9 is the appropriate code for this scenario.