AEMCA Practice Exam

What is represented by the code 10-7?

1. In service

2. Out of service

3. Message received

4. Negative response

The correct answer is: Out of service

The code 10-7 is universally recognized in law enforcement and emergency services communication systems as an indication that a unit is "Out of service." This designation is crucial for operational clarity, letting other units know that an officer or unit is not available for calls or other duties at that moment. This code is part of a larger set of 10-codes used to facilitate communication and ensure efficiency in radio transmissions by using concise and standardized terminology. By signaling "Out of service," it helps prevent misunderstandings and ensures that dispatchers and other units are aware of the availability of personnel. In contrast, other options such as "In service," "Message received," and "Negative response" pertain to different states or acknowledgments that are not represented by the code 10-7. These alternatives reflect different operational statuses or communicative responses that do not align with the meaning of being unavailable, further emphasizing the specificity of the 10-7 code.