What action should a television operator take before resuming full-power operation after maintenance work on the tower?

Before a television operator resumes full-power operation after maintenance work on the tower, it is critical to ensure that all workers are out of the high-RF exposure area. This action is essential for safety reasons, as radio frequency (RF) energy can be hazardous to individuals working in close proximity to transmission equipment when it is operational. Maintaining a safe environment is not only a best practice but also a regulatory requirement. By confirming that all personnel have vacated the area, the operator mitigates the risk of harm from RF radiation exposure.

The other choices may involve important procedures but do not address safety concerns as directly as ensuring that all workers are clear of the danger zone before power is restored to full levels.