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NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies .
NOTE 2 These guidelines may not apply in all situations . Electromag-
netic propagation is affected by absorption and reflection from struc-
tures, objects and people .
a . Field strengths from fixed transmitters, such as base stations
for radio (cellular/cordless) telephones and land mobile radios, ama-
teur 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 sur-
vey should be considered . If the measured field strength in the location
in which the DREAM™ series hearing aid is used exceeds the applica-
ble RF compliance level above, the DREAM™ series hearing aid should
be observed to verify normal operation . If abnormal performance is
observed, additional measures may be necessary, such as re-orienting
or re-locating the DREAM™ series hearing aid .
b . Over the frequency range 150 kHz to 80 MHz, field strengths should
be less than 3 V/m .
