Siemens HearCheck Screener, Руководство пользователя, Страница: 20 / 24

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Note 1:
Note 2:
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures,
objects and people.
a
b
Field strengths from fixed transmitters, such as base stations for
radio (mobile/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 HearCheck Screener is
used exceeds the applicable RF compliance level above, the
HearCheck Screener should be observed to verify normal
operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the
HearCheck Screener.
Over the frequency range 150 kHz to 80 MHz, field strengths
should be less than 3 V/m.
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