Question

What is the average accuracy of Garmin GPS receivers ?

• A. 5 metres
• B. 10 metres
• C. 15 metres
• D. 20 metres

Hint:

Recreational GPS units are great for finding a campsite, but not for drawing property lines. Expect about 15 meters of wiggle room!

Answer 1

The Correct Option is C

Step 1: Concept
GPS receivers are categorized by their precision levels: Recreational, Mapping, and Survey grades.

Step 2: Meaning
Standard recreational GPS units (like handheld Garmin devices used for hiking) rely on uncorrected satellite signals.

Step 3: Analysis

• Survey grade receivers achieve sub-centimeter accuracy.
• Mapping grade receivers achieve sub-meter accuracy (usually 1 meter or less).
• Recreational grade receivers (such as standard Garmin handhelds) typically provide an average accuracy of about 10 to 15 meters without differential correction (like WAAS). Standard textbook definitions place this average explicitly at 15 meters.

Step 4: Conclusion
The widely accepted standard average accuracy for uncorrected recreational Garmin GPS receivers is 15 meters. Final Answer: (C)