Philips EnergyUp Intense Blue Manual page 21

electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment
(transmitters) and HF3421, HF3420 as recommended below,
according to the maximum output power of the communications
equipment.
Rated maximum output power of transmitter (W)
0.01
0.1
1
10
100
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: These guidelines may not apply in all situations.
Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
800 MHz to 2.5 GHz d = 0.70 Ö P
0.07
0.22
0.70
2.21
7.00
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