26
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
reection from structures, objects and people.
a. Field strengths from xed 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 xed RF transmitters, an electromagnetic site survey should be
considered. If the measured eld strength in the location in which the AIROS 8 Sequential Compression Device is used
exceeds the applicable RF compliance level above, the AIROS 8 Sequential Compression Device should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting
or relocating the AIROS 8 Sequential Compression Device.
Immunity test IEC 60601 test
level
Compliance
level
Electromagnetic Environment – Guidance
Conducted RF
IEC 6100-4-6
3 Vrms
150 kHz to 80
MHz
3 Vrms Portable and mobile RF communications
equipment should be used no closer
to any part of the AIROS 8 Sequential
Compression Device, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter. Recommended separation
distance:
d = 1.2√P
d = 1.2√P 80MHz to 800MHz
d = 2.3√P 800MHz to 2.5GHz
where P is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and d is the recommended separation
Distance in metres (m).
Field strengths from xed RF transmitters,
as determined by an electromagnetic
site survey, (A) should be less than the
compliance level in each frequency range
(B).
Interference may occur in the vicinity of
equipment marked with the following
symbol:
Radiated RF
IEC 6100-4-3
3 V/m
80 MHz to 2.5
gHz
3 V/m
5. Guidance & Manufacturer’s Declaration –
Electromagnetic Immunity
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