
User Manual
1-14
Recommended separation distances between portable and mobile RF
communications equipment and the SONOACE R3
This product is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of this product can help Prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and this product 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]
150kHz to 80MHz
80MHz to 800MHz 800MHz to 2.5GHz
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 1) At 80MHz and 800MHz, the separation distance for the higher frequency range applies.
NOTE 2) These guidelines may not apply in all situations. Electromagnetic propagation is aected by absorption
and reection from structures, objects and people.
Electromagnetic environment – Guidance
It is recommended to use ultrasound systems in shielded locations oering RF shielding eectiveness,
with shielded cables. Field strengths outside the location shielded from fixed RF transmitters, as
determined by an electromagnetic site survey, should be less than 3 V/m.
It is essential that the actual shielding effectiveness and filter attenuation of the shielded location be
veried to assure that they meet the minimum specication.
CAUTION: If the system is connected to other customer-supplied equipment, such as a local area
network (LAN) or a remote printer, Samsung Medison cannot guarantee that the remote equipment
will work correctly in the presence of electromagnetic phenomena.
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