App.
96
EMC information
BF-190 Series OPERATION MANUAL
Recommended separation distances between portable and
mobile RF communications equipment and this model
This model is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of this model can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and this model as recommended below, according
to the maximum output power of the communications equipment.
• 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.
Rated maximum output
power of transmitter
P (W)
Separation distance according to frequency of transmitter (m)
(calculated as V
1
=3 and E
1
=3)
150 kHz – 80 MHz 80 MHz – 800 MHz 800 MHz – 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
Others 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 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.
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