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 PB840 Ventilator is used exceeds the applicable RF compliance level above,
the Bodystat 1500 should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orientating or relocating the Bodystat
1500.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V
1
] V/m.
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