My chamber is just wide enough to fit the scanner, therefore, how is performance impacted if the center line/plane of the near-field scanner/AUT is offset from the center-line of the chamber?

NSI recommends that the scanner be arranged in the chamber so that the scan center is aligned with the chamber center, however, it is acceptable to have the scan plane and AUT offset somewhat from the center of the chamber for minimizing chamber size and cost. Asymmetrical side-wall reflections are considered and accounted for in the 18-term range evaluation term: Room Scattering. Other factors that may influence the room scattering error term include AUT directivity, frequency of operation, absorber size and condition, and AUT pointing requirements.

Click here to determine the scanner sizes that will fit your chamber. More.

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