Справочник Пользователя для Boston Scientific Corporation CRM314013
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 aff ected by absorption and refl ection from structures,
objects, and people.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is aff ected by absorption and refl ection from structures,
objects, and people.
a. Field strengths from fi xed 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
fi xed RF transmitters, an electromagnetic site survey should be considered. If the measured fi eld strength in the location in which the ZWT is used
exceeds the applicable RF compliance level above, the ZWT should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the ZWT.
b. Over the frequency range 150 kHz to 80 MHz, fi eld strengths should be less than 3 V/m.
AM and FM radio broadcast, and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to
fi xed RF transmitters, an electromagnetic site survey should be considered. If the measured fi eld strength in the location in which the ZWT is used
exceeds the applicable RF compliance level above, the ZWT should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the ZWT.
b. Over the frequency range 150 kHz to 80 MHz, fi eld strengths should be less than 3 V/m.
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