AIM User Manual
07608
Issue A
Copyright Vitalograph 2011 DT_0006-8
16
Recommended separation distances between portable and mobile
RF communication equipment and the Model 4500 AIM
The Model 4500 AIM is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The
customer or the user of the Model 4500 AIM can help prevent
electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment
(transmitters) and the Model 4500 AIM as recommended below,
according to the maximum output power of the communications
equipment.
Separation distance according to frequency of
transmitter
m
Rated maximum
output power of
transmitter
W
150 kHz to 80
MHz
d = 1.2
√
P
80 MHz to 800
MHz
d = 1.2
√
P
800
MHz
to
2.5GHz
d = 2.3
√
P
0.01
0.1m
0.1m
0.2m
0.1
0.4m
0.4m
0.7m
1
1.2m
1.2m
2.3m
10
3.7m
3.7m
7.4m
100
11.7m
11.7m
23.3m
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.
Medical Devices may be affected by cellular telephones and other
personal or household devices not intended for medical facilities. It is
recommended that all equipment used near the Vitalograph product
comply with the medical electromagnetic compatibility standard and to
