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Technical
Specifications
and
Conformity
32
Recommended safety distances between portable and mobile RF communications
equipment and the Intelect RPW Lite
The Intelect RPW Lite is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The operator or the user of the Intelect RPW Lite can help to prevent
electromagnetic interference by complying with minimum distances between portable and mobile RF
communications equipment (transmitters) and the Intelect RPW Lite as recommended below according to the
maximum output power of the communications equipment.
Rated power of
transmitter
[W]
Safety distance according to frequency of transmitter [m]
150 kHz to 80 MHz
d = 1.2
√
P
80 MHz to 800 MHz
d = 1.2
√
P
800 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 safety distance can
be estimated using the equation applicable to the frequency of the transmitter, where P is the rated power
of the transmitter in watts [W] according to the transmitter manufacturer.
NOTE 1
An additional factor of 10/3 was used when calculating the recommended safety distance of
transmitters in the frequency range from 80 MHz to 2.7 GHz. The purpose of this was to reduce the
likelihood of a malfunction occurring in the event of a mobile/portable communications device being
inadvertently brought into the patient area.
NOTE 2
These guidelines may not apply in all situations. The propagation of electromagnetic waves is affected by
absorption and reflection from buildings, objects and people.
