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GE Healthcare
REV 1
4–4
Recommended Separation Distances for Portable and Mobile RF Communications Equipment IEC 60601-1-2
TABLE 2–4
RECOMMENDED SEPARATION DISTANCES
Frequency of
150KHz to 26
Transmitter
Equation
d = (3.5/V
Rated Power
DISTANCE
of Transmitter
(watts)
10 mW
100 mW
1
10
100
Note:
4–5
Use Limitation
4–6
Installation Requirements and Environmental Control
4–6–1 Cable shielding & grounding
4–6–2 Separated power supply distribution panel & line
26 MHz to 80 MHz
MHz
d = (3.5/V
).√P
2
DISTANCE
(meters)
(meters)
1.2
3.8
12
38
120
D
For transmitters rated at a power not listed above, the recommended separation distance
(d, in meters) can be estimated using the equation in the corresponding column, where
P is the power rating of the transmitter in watts (W) according to the transmitter
manufacturer.
D
(*) For example, a 1 W mobile phone (800MHz to 2.5GHz carrier frequency) should be
no closer than 23 meters from the Senographe to avoid image interference risks.
D
Using the recommended distance as determined from Table 4, between 150KHz &
2.5GHz, some slight disturbance might be observed at image level. The disturbance to
the image cannot be confused with a medical pathology, and the equipment retains its
medical utility.
These are guidelines. Actual conditions may vary.
D
External components:
The use of accessories, transducers, and cables other than those specified may result in
degraded Electromagnetic compatibility of the Senographe.
D
In order to minimize interference risks, the following requirements apply.
D
All interconnecting cables to peripheral devices must be shielded and properly grounded.
Use of cables not properly shielded and grounded may result in the equipment causing
radio frequency interference.
D
This product complies with the radiated emission limits of the CISPR11 Group1 Class
A standard.
80 MHz to 800
MHz
) .√P
d = (3.5/E
2
DISTANCE
(meters)
1.2
1.2
3.8
3.8
12
12
38
38
120
120
2–10
SENOGRAPHE DMR+
pim 5128706–1–100
800 MHz to 2.5
GHz
).√P
d = (7/E
).√P
2
4
DISTANCE
(meters)
2.3
7.3
23(*)
73
230
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