Product Manual

Patient Monitor User Manual EMC Information
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a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, 50 % pulse modulation at 18 Hz may be used because
while it does not represent actual modulation, it would be worst case.
B.4 Recommended Separation Distances
Recommended separation distances between
portable and mobile RF communications equipment and X8 X10 and X12
X8 X10 and X12 are intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of X8 X10 and X12 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and X8 X10 and X12 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 2.7 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.