10-33 is used to indicate which status?

• A. Clear radio / emergency traffic
• B. En route
• C. Call by telephone
• D. Standby

Answer: (A)

In radio operations, 10-33 signals emergency traffic and tells everyone on the channel to clear for urgent transmissions. It flags that an incident requires priority handling, so other traffic is paused and the emergency message can go through. That’s why this status—clearing the radio to allow emergency traffic—is the best fit for what 10-33 indicates. The other options describe routine statuses (en route, call by telephone, standby) and do not convey the need to give priority to an urgent message on the radio.