For an activated security alarm incident at a police facility, what radio signal code should be entered?

The radio signal code for an activated security alarm incident at a police facility is 10Y3. This code is specifically designated for alarm activations, making it the appropriate choice in this context.

Understanding signal codes is crucial for efficient communication within the NYPD and ensuring that officers and support staff are alerted to the situation correctly. The 10Y series codes are typically utilized for various types of alarm situations, allowing for a quick identification of what the incident involves, which is essential for appropriate response and coordination.

In contrast, the other codes listed do not correspond directly to activated alarms at police facilities. The precision in utilizing the correct code helps maintain clarity and efficiency during operational incidents, thus ensuring that all personnel are on the same page and can respond effectively.