In the outdoor WLAN deployment scenario, the channel design must consider the interference of the radar channel.

Question

Options

• ATrue
• BFalse

• A
  70% (33)
• B
  30% (14)

Explanation

Option A is correct because outdoor WLAN deployments operating in the 5 GHz band are subject to Dynamic Frequency Selection (DFS) requirements, which mandate that access points detect and avoid radar signals on certain channels. Regulatory bodies (FCC, ETSI, etc.) require DFS compliance to protect radar systems - such as weather and military radar - from interference caused by WLAN transmissions. Channel planning for outdoor deployments must therefore account for which channels are DFS-restricted, how the AP will respond when radar is detected (channel switch), and the resulting impact on network availability.

Option B is wrong because ignoring radar interference in outdoor 5 GHz channel design would violate regulatory requirements and cause real-world service disruptions when APs are forced to vacate channels upon radar detection.

Memory tip: Think "outdoor = open sky = radar risk." Indoors, walls attenuate radar signals enough that the risk is lower, but once you go outside, radar systems are in the same "open air" environment - so DFS channel design becomes a mandatory consideration, not optional.

No community discussion yet for this question.