93
ENGLISH
ATTENTION:
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting antenna and the ME
EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance is permitted by IEC 61000-4-3.
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.
Table 5
Recommended separation distances between portable and mobile RF communication the equipment
The Patient Monitor is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of The Patient Monitor can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and
the Patient Monitor as recommended below, according to the maximum output power of the communications
equipment.
Rated maximum output power
of transmitter
W(Watts)
Separation distance according to frequency of transmitter M(Meters)
150kHz to 80MHz
d=1.2
P
80MHz to 800MHz
d=1.2
P
80MHz to 2,5GHz
d=2.3
P
0,01
N/A
0.12
0.23
0,1
N/A
0.38
0.73
1
N/A
1.2
2.3
10
N/A
3.8
7.3
100
N/A
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance in metres
(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 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.
