Which component provides electrical power to the VOR navigation system?

Which component provides electrical power to the VOR navigation system?

• A. Receiver
• B. Antennas
• C. Frequency selector
• D. Power supply

Answer: (D)

Electronic navigation equipment like the VOR needs a power source to run its internal circuits. The component that provides that energy is the power supply, which converts the aircraft’s electrical power (typically 28V DC) into the voltages the VOR receiver and its related electronics require. Without a functioning power supply, the VOR receiver cannot operate even if the receiver, antennas, and frequency selector are all present and in good condition. The receiver is the device that processes the VOR signal, the antennas are just the inputs for the signal, and the frequency selector tunes to the desired VOR frequency; none of these can work without power.

Electronic navigation equipment like the VOR needs a power source to run its internal circuits. The component that provides that energy is the power supply, which converts the aircraft’s electrical power (typically 28V DC) into the voltages the VOR receiver and its related electronics require. Without a functioning power supply, the VOR receiver cannot operate even if the receiver, antennas, and frequency selector are all present and in good condition. The receiver is the device that processes the VOR signal, the antennas are just the inputs for the signal, and the frequency selector tunes to the desired VOR frequency; none of these can work without power.