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RECOMMENDED SEPARATION DISTANCES
Table 18. 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
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 Parts & Accessories and Component Specifications 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 19. EMC Standards for Accessories
ACCESSORY LENGTH
AC power cord 4.5 m (15 ft)
DC medical power adapter —
HDMI‑to‑DVI cable 6 m (20 ft)
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