What primary features does a VOR control box have?

The primary features of a VOR (VHF Omni-directional Range) control box indeed include a power switch, tuning controls, and a frequency indicator.

The power switch allows the operator to turn the VOR system on or off, ensuring it is operational when needed for navigation. Tuning controls are essential for selecting the desired VOR frequency, which enables the aircraft to receive signals from specific VOR stations. The frequency indicator displays the currently tuned frequency, helping the pilot verify that they are communicating with the intended VOR station.

These components are fundamental to the operation and functionality of a VOR system, ensuring accurate navigation and proper communication with air traffic control and other aircraft. The other options, while they may pertain to aviation in a broader context, do not encapsulate the specific features of a VOR control box. For example, multiple frequency bands and radar controls pertain more to radar systems rather than VOR. Navigation logs and flight history are typically stored in a flight management system rather than in a VOR control setup, while weather data and terrain analysis would relate more to other systems used in aviation, such as weather radar or terrain awareness systems.