Advantech MIT-W102 Series, Руководство пользователя, Страница: 46 / 73

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Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey, a should be less than
the compliance level in each frequency range. b
Interference may occur in the vicinity of equipment marked
with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
a 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 in the location in which the model MIT-W102 SERIES is used
exceeds the applicable RF compliance level above, the model MIT-W102 SERIES should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the model MIT-W102 SERIES.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than V/m.