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NECG-12
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 12-channel
electrocardiograph is used exceeds the applicable RF compliance level above, the
12-channel electrocardiograph should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the 12-channel electrocardiograph.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Electrocardiograph User Manual
2
3 .
d
Where P is the maximum output power
rating of the transmitter in watts (W)
according
manufacturer
recommended separation distance in
metres (m).
Field
strengths
transmitters, as determined by an
electromagnetic site survey,
less than the compliance level in each
frequency range.
Interference may occur in the vicinity
of
equipment
following symbol:
- 115 -
EMC Information
800 MHz to 2.5 GHz
P
to
the
transmitter
and
d
from
fixed
a
b
marked
with
is
the
RF
should be
the
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