2.1.3 Recommended separation distances to portable and mobile
radio equipment
Ow-RX is designed to operate in an electromagnetic environment in
which radiated RF disturbances are controlled.
The customer or user of the system can help prevent electromagnetic
interference by ensuring a minimum distance between mobile and
portable RF communication devices (transmitters) and Ow-RX as
recommended in the following table in relation to the maximum output
power of the radio devices.
Separation distance according to the frequency of the
transmitter (m)
Maximum rated
output power of
the transmitter
(W)
from 150kHz to
80MHz
d = 1.2 x
√
P
from 80MHz to
800MHz
d = 1.2 x
√
P
from 800MHz to
2.5GHz
d = 2.3 x
√
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 maximum rated output not shown in the table, the recommended
separation distance "d" in meters (m), can be calculated using the equation applicable to
the frequency of the transmitter, where "P" is the highest rated output of the transmitter in
watts (W) according to the manufacturer of the transmitter.
Note 1: at 80 MHz and 800 MHz, apply the separation distance for the higher frequency
interval.
Note 2: these guidelines may not apply to all situations. Electromagnetic propagation
depends on the absorption and reflection of structures, objects and people.
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