80
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, 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
SUPER™ series hearing aid is used exceeds the applicable RF compliance
level above, the SUPER™ series hearing aid should be observed to ver-
ify normal operation . If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or re-locating the
SUPER™ series hearing aid .
b . Over the frequency range 150 kHz to 80 MHz, field strengths should
be less than 3 V/m .
