MGE UPS Systems SAM Operating And Maintenance Manual page 25

Portable and mobile RF communications equipment and the SAM e.p.s
The SAM e.p.s is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
The customer or the user of the SAM e.p.s can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (transmitters) and the SAM e.p.s 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 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.
Manual 156 - Issue 08
SAM e.p.s – UK
Operation and Maintenance Manual
Recommended separation distances between
Separation distance according to frequency of transmitter
150 KHz to 80 MHz
√
d = 1.2√ P
0.12
0.38
1.2
3.8
12
m
80 MHz to 800 MHz
√
√P
d = 1.2
0.12
0.38
1.2
3.8
12
800 MHz to 2.5 GHz
√
√P
d = 2.3
0.23
0.73
2.3
7.3
23.3
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