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Recommended separation distances between
portable and mobile RF communications equipment and the Hemo-Force®
The Hemo-Force® is intended for use in an electromagnetic environment (for professional
healthcare) in which radiated RF disturbances are controlled. The customer or the user of
the Hemo-Force® can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (transmitters) and
the Hemo-Force® as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum
output power of
transmitter
W
0,01
0,1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in meters (m) can be estimated using the equation applicable to
the frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for 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.
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
d = 1,2
0,12
0,38
1,2
3,8
12
m
80 MHz to 800 MHz
d = 1,2
0,12
0,38
1,2
3,8
12
22
800 MHz to 2,7 GHz
d = 2,3
0,23
0,73
2,3
7,3
23
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