Neuron-Spectrum (Technical Manual)
42
Recommended separation distances between portable and mobile RF communications
equipment and digital system
The digital system is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the digital system can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the digital system 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
150 kHz up to 80 MHz
outside ISM bands
P
d
17
.
1
=
80 MHz to 800 MHz
P
d
17
.
1
=
800 MHz to 2.5 GHz
P
d
23
.
2
=
0.01
0.117
0.117
0.233
0.1
0.369
0.369
0.738
1
1.167
1.167
2.333
10
3.689
3.689
7.379
100
11.667
11.667
23.333
Notes:
1. At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
2. These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
3. 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
Р
is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.
