a. Essential performance of the Naída CI per IEC 60601
requirements is defined as auditory stimulation and
acoustic amplifications are within safe amplitudes and
does not create an overly loud sound.
b. 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 Naída CI is used exceeds the
applicable RF compliance level above, the Naída CI
should be observed to verify normal operation.
c. Over the frequency range 150 kHz to 80 MHz,
field strengths should be less than 3 V/m.
Separation Distances between RF Communications
Equipment and Naída CI M90
r
ecommended
m
rf c
obIle
The Naída CI is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled.
The customer or the user of the Naída CI can help prevent
electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment
(transmitters) and the Naída CI as recommended below,
according to the maximum output power of the communications
equipment.
S
d
eParatIon
ommunIcatIonS
IStanceS between
e
quIPment and the
P
ortable and
n
cI m90
aída
47