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Philips Efficia DFM100 Instructions For Use Manual Page 230

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19: Specifications
Recommended Separation Distances
The Efficia DFM100 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Efficia DFM100 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Efficia DFM100 as recommended below,
according to the maximum output power of the communications equipment.
Table 65
Rated Maximum
Output Power of
Transmitter (W)
For transmitters rated at a maximum output power not listed above, the recommended separation
distance d in meters (m) can be determined 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's manufacturer.
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines might not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
Recommended Separation Distances
Separation Distances According to Frequency of Transmitter (m)
150 kHZ to 800 MHz
800 MHz to 2.5 GHz
0.1 m
0.4 m
1.2 m
4 m
12 m
Electromagnetic Compatibility
0.2 m
0.7 m
2.3 m
7 m
23 m


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