102 Electromagnetic compatibility statement
fabian Therapy evolution | SW 5.1.x
Ref: 121003.EN / Date 2020-01-22
Recommended safety distances between portable and mobile
HF communication devices and the device " fabian Therapy evolution "
fabian Therapy evolution is intended to be operated in an electromagnetic environment with controlled HF
interferences. The operator of the fabian Therapy evolution can help avoid electromagnetic interference by
maintaining the minimum distance between portable and mobile HF telecommunication devices
(transmitters) and the device fabian Therapy evolution depending on the output rating of the
communication device, as listed below.
Maximum
transmitter power
output
W
Safety distance depending on transmission frequency
m
150 kHz to 80
MHz outside ISM
bands
150 kHz to 80 MHz
within ISM bands
For transmitters with a maximum power output not listed in the above table the recommended safety
distance d in metres (m) can be determined using the equation from the corresponding column, with P
in Watts (W)
specifications.
REMARK 1 At 80 MHz and 800 MHz the safety distance of the higher frequency applies.
REMARK 2 The ISM bands (industrial, scientific and medical) between 150 kHz and 80 MHz are 6.765
MHz to 6.795 MHz; 13.553 MHz to 13.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.7 MHz.
REMARK 3 An additional factor of 10/3 is used when calculating the recommended safety distance for
transmitters within the ISM frequency between 150KHz and 80 MHz and between 80MHz and 2.5GHz to
reduce the probability of mobile/portable transmitters causing interference if accidentally brought into the
vicinity of the patient.
REMARK 4 These guidelines may not apply to all cases. The propagation of electromagnetic quantities
is influenced by absorption and reflexion of buildings, objects and people.
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