Which radio channels are utilized for tactical events?

The correct choice identifies that channels 3 through 7 are designated for tactical events. These channels are specifically allocated for real-time operations and coordination of on-scene activities, allowing multiple teams to communicate effectively during an incident. This allocation promotes efficient use of resources and enhances situational awareness among responders.

Tactical channels often focus on the specific needs of incidents, such as coordination during firefighting efforts, rescue operations, or specialized responses, ensuring that critical information can be exchanged without interference from routine communications. This structure helps to streamline operations and prioritize communication for personnel directly involved in tactical maneuvers.

The other options do not encompass the full range of channels specified for tactical events, indicating a more limited scope which might not support the extensive and dynamic requirements of real operational scenarios.