Private Pilot Licence · Practice

A GPS receiver's position error can grow without warning if:

• A.The pilot stops scanning the moving map display for more than a few minutes at a time
• B.The aircraft altimeter subscale is incorrectly set by the pilot
• C.The receiver battery is fully charged, causing the unit to overheat
• D.Satellites needed for a fix become unavailable, or one sends a faulty signal with no RAIM