286
ES
CEFAR TENS
286
CEFAR TENS
Recommended separation distances between
portable and mobile RF communications equipment and Cefar TENS
Cefar TENS is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of Cefar TENS can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and Cefar TENS, 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
0.15 MHz to 80 MHz
d=1.2 √P
80 MHz to 800 MHz
d=1.2 √P
80 MHz to 2.7 GHz
d=2.3 √P
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 higher frequency range applies.
Note 2
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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