Vatech PAX-I, User Manual

Page: 129 / 137

PaX-i (PCH-2500) User Manual
129
Appendices
NOTE 1) These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures, objects
and people.
NOTE 2) It is essential that the actual shielding effectiveness and filter
attenuation of the shielded location be verified to assure that they meet the
minimum specification.
Field strengths from fixed transmitters, such as base stations for radio
(cellular/cordless) telephones and land mobile radios, amateur radio, AM
and FM radio broadcast and TV broadcast cannot be predicted theoretically
with accuracy. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the
measured field strength outside the shielded location in which the model
PaX-i(PCH-2500) is used exceeds 3V/m, the model PaX-i(PCH-2500)
should be observed to verify normal operation. If abnormal performance
is observed, additional measures may be necessary, such as relocating
the model PaX-i(PCH-2500) or using a shielded location with a higher RF
shielding effectiveness and filter attenuation.
Pi_u272_en_20180514.indd 129 2018-05-14 오전 11:03:33