What is a typical ADF antenna?

What is a typical ADF antenna?

• A. A flush-mounted type antenna
• B. A dish-shaped antenna
• C. A whip antenna mounted on the fuselage
• D. A conformal surface antenna

Answer: (A)

ADF receivers rely on a small, low-profile antenna that can be integrated into the aircraft’s skin. A flush-mounted antenna fits this need perfectly: it sits level with the surface, minimizing drag and protection from weather while still providing the necessary reception for the ADF bearing system. The other forms—dish-shaped, which are used for radar or satellite dishes; a whip mounted on the fuselage, which is common for some VHF/UHF comms or other nav antennas; and a conformal surface antenna, while possible, are not the typical, standard solution for the ADF, making the flush-mounted type the best fit.

ADF receivers rely on a small, low-profile antenna that can be integrated into the aircraft’s skin. A flush-mounted antenna fits this need perfectly: it sits level with the surface, minimizing drag and protection from weather while still providing the necessary reception for the ADF bearing system. The other forms—dish-shaped, which are used for radar or satellite dishes; a whip mounted on the fuselage, which is common for some VHF/UHF comms or other nav antennas; and a conformal surface antenna, while possible, are not the typical, standard solution for the ADF, making the flush-mounted type the best fit.