What are three advantages of performing an active onsite survey with spectrum analysis over a...

An active onsite survey validates RF conditions in the actual deployment environment rather than depending entirely on predictive propagation assumptions. Real measurements expose the attenuation caused by walls, doors, furnishings, and other physical structures, providing more accurate attenuation values. An onsite survey can also observe neighboring 802.11 activity and the resulting contention that affects available airtime. When spectrum analysis is included, Layer 1 energy from non-Wi-Fi sources can be discovered and characterized. RUCKUS site-survey guidance specifically separates Layer 1 spectrum analysis, Layer 2 WLAN discovery, and active survey measurements as important onsite activities. Predictive surveys are valuable for preliminary design and buildings that do not yet exist, but they cannot reproduce every real RF condition. An active survey also does not eliminate the value of post-deployment validation. RUCKUS Networks

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