Which function of the remote control system is used to turn on the high voltage of a television transmitter?

The function of the remote control system that is specifically tasked with turning on the high voltage of a television transmitter is most accurately described by the term "Power." This term is widely understood across various electronic devices to indicate not just turning a device on or off, but also engaging crucial components necessary for operation, such as high voltage circuits in the case of a television transmitter.

When a transmitter is powered on, it initiates the necessary electrical processes that allow it to generate the RF (radio frequency) signals needed for broadcasting. This involves applying high voltage to specific parts of the transmitter, often referred to as the power supply section.

In contrast, other terms like "Start," "Command," and "Activate," while they may appear relevant, do not specifically reference the high voltage aspect nor are they as universally accepted in the context of electronic devices for power control. "Start" might suggest initializing a function, "Command" could imply sending a directive to the system, and "Activate" lacks the direct correlation to engaging high voltage power that "Power" conveys.

Thus, "Power" stands out as the most appropriate term that encapsulates the action of enabling the high voltage required to operate a television transmitter effectively.