User's Manual

F Series Fetal & Maternal Monitor User Manual EMC Information
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A7.4 Recommended Separation Distances
Recommended separation distances between
portable and mobile RF communications equipment and the
F Series Fetal & maternal Monitor
The F Series Fetal & maternal Monitor is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the F Series Fetal & maternal
Monitor can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the F Series Fetal & maternal
Monitor 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
Pd 2.1
80 MHz to 800 MHz
Pd 2.1
800 MHz to 2.5 GHz
Pd 3.2
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 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
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