Beurer BM 49 - RF Emissions Separation Guidelines; Recommended RF Separation Distances; RF Separation Distance Calculations

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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 BM49 blood pressure monitor
The BM49 blood pressure monitor is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of
the BM49 blood pressure monitor can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the BM49 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 7.400
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 estimated using the equation appli
-
cable 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 aected by absorption and reflection from structures, objects and people.
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