An engineer receives a digital image scanned from the floor plans of a facility to be surveyed for wireless survey and imported it into Air Magnet Pro. However, the document contains no scale. Which…

Question

Options

• AMark the length of a hallway, then count the ceiling tiles, multiply that number by 2 and enter that
• BZoom in and mark across a hallway, then count the floor tiles across that hallway and enter that
• CZoom in and mark a doorway, then size it at 3 feet because most doorways are 36 inches.
• DMark the entire longest dimension of the floorplan, then use Google Earth to measure the

• A
  10% (3)
• B
  3% (1)
• C
  3% (1)
• D
  83% (24)

Explanation

When a floor plan has no embedded scale, the most accurate calibration method is to establish a real-world reference measurement using an external authoritative source. Using Google Earth to measure the actual physical longest dimension of the building provides a precise, GPS-based measurement that can then be entered into AirMagnet to calibrate the entire floor plan accurately. Options A and B rely on counting tiles, which introduces cumulative measurement error and assumes uniform tile sizes. Option C assumes a standard doorway width but doorways vary significantly. Google Earth provides a verifiable, objective measurement of the building's actual footprint.

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