Question
How does the free-field range of KNX RF compare with the distance achievable inside a building?
Answer
C — The free-field range is significantly higher than the in-building distance
Correct: free field is the open-space best case and is significantly higher than what is achievable inside a building.
Source
KNX Basic Course Documentation — 2 — p. 139
All proposed choices (exam context)
- A.The free-field range is significantly lower than the in-building distance
- B.They are always exactly equal
- C.The free-field range is significantly higher than the in-building distance✓
- D.The in-building distance is unlimited
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