75
Operations & Maintenance Manual: Product Specifications
RECOMMENDED SEPARATION DISTANCES
Table 28. Recommended Separation Distances between Portable and Mobile RF Communications
Equipment and the AortaScan AMI 9700 System
The AortaScan AMI 9700 system is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the AortaScan AMI 9700 system can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the AortaScan AMI 9700 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
d
=1.2 √
P
80 MHz to 800 MHz
d
=1.2 √
P
800 MHz to 2.5 GHz
d
=2.3 √
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 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: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
ACCESSORY CONFORMANCE TO STANDARDS
To maintain electromagnetic interference (EMI) within certified limits, the system must be used with the
cables, components, and accessories specified or supplied by Verathon
®
. For additional information, see
the
System Components & Accessories
and
sections. The use of accessories or
cables other than those specified or supplied may result in increased emissions or decreased immunity of
the system.
Table 29. EMC Standards for Accessories
ACCESSORY
MAX LENGTH
AC power cord
2 m (6.6 ft)
USB cable
1.9 m (6.2 ft)
Desktop power supply
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