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NavigationQuestion 295 of 934

A hand-held GPS receiver has no RAIM capability. What is the risk?

  1. It gives no alert when position accuracy drops
  2. It cannot show a moving map display of airspace
  3. It always uses fewer than four satellites
  4. It needs an IFR database in order to work
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Correct answer: It gives no alert when position accuracy drops

Many VFR GPS receivers and all hand-held units lack RAIM alerting. An undetected navigation error could occur.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 16: Navigation — VFR Use of GPS, page 419

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Questions last reviewed: 18 October 2026