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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 CardioMessenger is used exceeds the applicable RF compliance level above, the Cardio-
Messenger should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such
as
re-orienting or relocating the CardioMessenger.
b.
Above the frequency range of 150 KHz to 80 MHz, ensure that field strengths are less than 3 V/m.
CardioMessenger.book Page 49 Monday, March 4, 2013 6:07 PM