74 EN
Recommended Separation Distances Between Portable and
Mobile RF Communications Equipment and the Sidne™ System
The Sidne™ system is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled.
The user of the Sidne™ system can help prevent electromagnetic
interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters)
and the Sidne™ system as recommended below, according to the
maximum output power of the communications equipment.
Rated maximum
output power
(W) of
transmitter
Separation distance (m) according to
frequency of transmitter
150 kHz to
80 MHz
80 MHz to
800 MHz
800 MHz to
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
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 separation distance for the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic pagation is affected by
absorption and reflection from structures, objects, and people.
d1.2P=
d1.2P=
d2.3P=
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