Optimas System Operator Manual
Section 13: System Specifications
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between
portable and mobile RF communications equipment and the System
The System is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the System can help prevent
electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the 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 to 80 MHz
80 MHz to 800
MHz
800 MHz to 2,5
GHz
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 propagation is
affected by absorption and reflection from structures, objects and people.
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