A parks department 5 GHz PTP bridge link fails when a construction crane swings into the Fresnel zone. What is the most accurate expert diagnosis?
Select an answer to reveal the explanation.
Short Explanation
A crane in the Fresnel zone is like putting a dump truck in the middle of your driveway — the RF path is physically blocked, not 'misrouted.' Clear the line or move the antennas. Bigger TCP windows and random DFS myths won't lift steel out of the beam.
Full Explanation
Point-to-point WLAN bridges require adequate Fresnel-zone clearance in addition to optical line of sight. Intrusion by large metal objects increases attenuation and multipath disruption of the RF path. This is a physical RF geometry problem, not a Layer-3 routing or TCP tuning issue, and it is distinct from DFS radar events.