JADAK a business unit of Novanta Corporation MERCURY4 ユーザーズマニュアル

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Environmental Conditions
Reader performance may be affected by the following:
 
Metal surfaces such as desks, filing cabinets, bookshelves, and wastebaskets may 
enhance or degrade reader performance.
 
Mount antennas as far as possible from metal surfaces that are adversely affecting 
system performance.
 
Devices that operate at 900 MHz, such as cordless phones and wireless LANs, can 
interfere with reader performance. These devices may degrade performance of the 
reader. The reader may also adversely affect performance of 900 MHz devices.
 
Avoid mounting reader antennas in close proximity to fluorescent lighting where 
possible, and test reader performance with moving machinery turned off.
 
Fluorescent lighting fixtures are a source of strong electromagnetic interference and 
should be replaced if possible, or if not, keep cables and antennas away from them.
 
Uncoil completely all coaxial cables leading from readers to antennas: they can be a 
strong source of electromagnetic radiation and should be laid flat and not coiled up.