Which factor can cause interference by electrostatic fields on radio navigation?

Which factor can cause interference by electrostatic fields on radio navigation?

• A. It has no effect on ADF
• B. It reduces the bearing accuracy
• C. It is independent of weather
• D. The electrostatic fields can interfere

Answer: (D)

The factor here is that electrostatic fields around the aircraft can cause interference with radio navigation by injecting static electricity into the navigation receiver. This static discharge or coupling into the receiver creates noise and distortions in the received signal, which can lead to erroneous or fluctuating bearing indications, especially for ADF uses. Weather conditions influence how much charge builds up and discharges, so electrostatic interference is often more noticeable in stormy or precipitation-heavy conditions. So the electrostatic fields themselves can interfere with navigation signals. The other options aren’t as accurate: one claims there’s no effect, which isn’t true for ADF; another asserts weather has no influence, which isn’t correct because weather affects static buildup; and while interference can reduce bearing accuracy, the key point is that the electrostatic fields can cause the interference in the first place.

The factor here is that electrostatic fields around the aircraft can cause interference with radio navigation by injecting static electricity into the navigation receiver. This static discharge or coupling into the receiver creates noise and distortions in the received signal, which can lead to erroneous or fluctuating bearing indications, especially for ADF uses. Weather conditions influence how much charge builds up and discharges, so electrostatic interference is often more noticeable in stormy or precipitation-heavy conditions. So the electrostatic fields themselves can interfere with navigation signals. The other options aren’t as accurate: one claims there’s no effect, which isn’t true for ADF; another asserts weather has no influence, which isn’t correct because weather affects static buildup; and while interference can reduce bearing accuracy, the key point is that the electrostatic fields can cause the interference in the first place.