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Recommended separation distances between portable and mobile RF communications equipment and the EQUIPMENT or SYSTEM
– for EQUIPMENT or SYSTEM that are not LIFE-SUPPORTING
Recommended separation distances between portable and mobile RF communications equipment and the
SBM 38
blood pressure
monitor
The SBM 38 blood pressure monitor is intended for use in an electromagnetic environment in which radiated RF disturbances are con-
trolled. The customer or the user of the SBM 38 blood pressure monitor can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment (transmitters) and the SBM 38 blood pressure monitor
as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
(W)
Separation distance according to frequency of transmitter
(m)
150 kHz to 80 MHz
d =
80 MHz to 800 MHz
d =
800 MHz to 2.5 GHz
d =
0.01 0.117 0.117 0.234
0.1 0.370 0.370 0.740
1 1.170 1.170 2.340
10 3.700 3.700 7.40 0
100 11.7 11.7 23.4
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (m) can be esti-
mated 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 aected by absorption and reflection from
structures, objects and people.
750.443-1113 SBM 38_Irrtum und Änderungen vorbehalten