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not exceed 10 degrees and view each sector at least 1 second.
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use peripheral vision by scanning small sectors and utilizing off-center viewing.
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be 30 degrees and view each sector for at least 3 seconds.
 
UAV CampusAdministrator									
Eye movements during daytime collision avoidance scanning should
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not exceed 10 degrees and view each sector at least 1 second.
Scanning is more effective when the operator focuses on a short segment (approximately 10 degrees) for several seconds before moving on.