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Recommended separation distances between portable and mobile RF communications
equipment and the Medical Digital Blood Pressure Monitor ORO-N2 BASIC
The “Digital Blood Pressure Monitor ORO-N2 BASIC” is intended for use in an electro-
magnetic environment in which radiated RF disturbances are controlled. The customer
or the user of the Medical Digital Blood Pressure Monitor ORO-N2 BASIC can help
prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the “Digital
Blood Pressure Monitor ORO-N2 BASIC ” 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
do 80 MHz
80 MHz
do 800 MHz
800 MHz
do 2,5 GHz
0,01 0,12 0,12 0,23
0,1 0,38 0,38 0,73
1 1,2 1,2 2,3
10 3,8 3,8 7,3
100 12 12 23
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.
These guidelines may not apply in all situations. Electromagnetic propagation
is affected by absorption and reflection from structures, objects and people.
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