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11. GUIDANCE AND MANUFACTURER’S DECLARATION
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/ cordless) telephones
and land mobile radio, AM and FM radio broadcast, and TV broadcast cannot be predicted
theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters,
an electromagnetic site survey should be considered. If the measured field strength in the location in
which the OMRON battery-operated BPM is used exceeds the applicable RF compliance level
above, the OMRON battery-operated BPM should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the OMRON battery-operated BPM.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 6 V/m.
Recommended separation distance between portable and mobile RF communications
equipment
and the OMRON battery-operated BPM
OMRON battery-operated BPM is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of this OMRON battery-operated
BPM can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the OMRON battery-operated
BPM as recommended below, according to the maximum output power of the communications
equipment.
Output Power of Transmitter in
Watt
Separation distance according to frequency of transmitter
in meter
150 kHz to 80 MHz
Not Applicable.
80 MHz to 800 MHz
d = 0.35
800 MHz to 2.5 GHz
d = 0.70
0.01 Not Applicable. 0.035 0.070
0.1 Not Applicable. 0.11 0.22
1 Not Applicable. 0.35 0.70
10 Not Applicable. 1.1 2.2
100 Not Applicable. 3.5 7.0
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: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note: 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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