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Recommended separation distances between portable and mobile RF
communications equipment and the Phyaction-series device
The Phyaction-series device is intended for use in the electromagnetic
environment in which radiated RF disturbances are contolled. The customer
or the user of a Phyaction-series device can help prevent electromagnetic
interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the Phyaction-
series devices as recommended below, according to the maximum output
power of the communications equipment.
Rated maximum
output power of
transmitter
W
0,01
0,1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in metres (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.
Phyaction C
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
√
d = 0,35
p
0,04
0,11
0,35
1,11
3,50
72
m
80 MHz to 800 MHz
√
d = 0,35
p
0,04
0,11
0,35
1,11
3,50
800 MHz to 2,5 GHz
√
d = 0,70
p
0,07
0,22
0,70
2,21
7,00
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