What are the two levels of accuracy available on GPS?

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Prepare for the VT-IV Navigation Familiarization Exam II. Master navigation techniques with flashcards and multiple choice questions, with each answer fully explained. Boost your confidence and ace your exam!

Multiple Choice

What are the two levels of accuracy available on GPS?

Explanation:
The concept being tested is that GPS offers two service levels that determine accuracy: Standard Positioning Service (SPS) and Precise Positioning Service (PPS). SPS is the open civilian service, providing standard accuracy to anyone worldwide. PPS is the restricted service for authorized users, offering higher accuracy and stronger integrity because it uses encrypted signals and more robust timing information. This distinction explains why the two levels of accuracy available on GPS are SPS and PPS. The other terms refer to different ideas (frequencies or position dimensions) and don’t describe separate accuracy levels.

The concept being tested is that GPS offers two service levels that determine accuracy: Standard Positioning Service (SPS) and Precise Positioning Service (PPS). SPS is the open civilian service, providing standard accuracy to anyone worldwide. PPS is the restricted service for authorized users, offering higher accuracy and stronger integrity because it uses encrypted signals and more robust timing information. This distinction explains why the two levels of accuracy available on GPS are SPS and PPS. The other terms refer to different ideas (frequencies or position dimensions) and don’t describe separate accuracy levels.

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