EASA NAV(A)basic
Which onboard instrument can be influenced by electronic devices?
Answer
Direct-reading compass
Explanation
Electronic equipment can create magnetic interference that affects the **direct-reading compass**. The other listed instruments do not use a magnetic compass card as their basic sensing mechanism. **Key takeaway:** Keep magnetic interference in mind when interpreting compass indications. **Glossary:** Magnetic interference: disturbance of the local field affecting compass indication.
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