A7™ Operating Instructions 046-004667-00 9 - 29
Product Specifications Electromagnetic Compatibility
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF
COMMUNICATIONS EQUIPMENT AND THE A7
The A7 is intended for use in an electromagnetic environment in which radiated RF disturbance are
controlled. The customer or the user of the A7 can help prevent electromagnetic interference by
maintaining a minimum distance between portable/mobile RF communications equipment
(transmitters) and the A7 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 x
80 MHz to 800 MHz
d = 1.2 x
800 MHz to 2.5 GHz
d = 2.3 x
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
11.2 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 determined 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.
NOTE: An additional factor of 10/3 is used in calculating the recommended
separation distance for transmitters in the ISM frequency bands
between 150 kHz and 80 MHz and in the frequency range 80 MHz to
2,5 GHz to decrease the likelihood that mobile/portable
communications equipment could cause interference if it is
inadvertently brought into patient areas.
NOTE: These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from
structures, objects and people.
TABLE 9-42
Recommended separation distances between portable and mobile RF
communications equipment and the A7
P P P
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