Beurer medical FT 90 Mode D'emploi page 151

Table 4
For ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances between portable and mobile RF communications equipment and the FT90
The FT 90/1 is intended for use in an electromagnetic environment in which radiated RF disturban-
ces are controlled. The customer or the user of the FT 90/1 can help prevent electromagnetic interfe-
rence by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the FT 90/1 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 trans-
mitter, 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
800 MHz to 2.5 GHz
d = 2.3
0.23
0.73
2.3
7.3
23
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