Stryker SERFAS, Operation And Maintenance Manual

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36
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND
MOBILE RF COMMUNICATIONS EQUIPMENT AND THE SERFAS ENERGY
SYSTEM
The SERFAS Energy Systemsystem is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The user of the SERFAS Energy Systemsystem can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the SERFAS Energy Systemsystem as recommended below, according to the maximum output
power of the communications equipment.
RATED MAXIMUM
OUTPUT POWER
(W) OF
TRANSMITTER
SEPARATION DISTANCE (M) ACCORDING TO
FREQUENCY OF TRANSMITTER
150 KHZ TO 80
MHZ
80 MHZ TO 800
MHZ
800 MHZ TO 2.5
GHZ
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.17 2.33
10 3.70 3.70 7.37
100 11.70 11.70 23.30
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.