36
37
Immunity Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic Environment -
Guidance
Portable and mobile RF communications
equipment should be used no closer to
any part of the
Compex® Wired 3.0
,
including cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance:
Conducted RF IEC
61000-4-6
3 Vrms
150 kHz to
80 MHz
Not Applicable
d = 1.2√P
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
10 V/m
26 MHz to
1 GHz
3 V/m
10 V/m
d = 1.2√P 80 MHz to 800 MHz
d = 2.3√P 800 MHz to 2.5 GHz
Where P is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and d is the recommended separation
distance in meters (m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey, should be less than the compliance
level in each frequency range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
NOTE 1: At 80 MHz and 800 MHz, 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.
A. Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be
considered. If the measured field strength in the location in which the Compex® Wired 3.0
are used exceeds the applicable RF compliance level above, the Compex® Wired 3.0 should
be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the Compex® Wired 3.0.
B. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
TABLE 4: RECOMMENDED SPACING BETWEEN A PORTABLE AND MOBILE COMMUNICATION
APPLIANCE AND THE COMPEX® WIRED 3.0
The Compex® Wired 3.0 is designed for use in an electromagnetic environment in which
radiated RF waves are controlled. The buyer or user of the Compex® Wired 3.0 can contribute
to preventing electromagnetic interference by maintaining a minimum distance between RF
portable and mobile communication appliances (transmitters) and the Compex® Wired 3.0
according to the table of recommendations below and according to the maximum output power
of the telecommunication appliance.
In the case of whose maximum output power is not shown in the table above, the recommended
spacing of d meters (m) can be calculated using the appropriate equation for the transmitter
frequency, where P is the maximum output power of the transmitter in watts (W) as set by
the transmitter manufacturer.
Note 1:
At 80 MHz and at 800 MHz, the spacing for high frequency amplitude is applied.
Note 2:
These guidelines may not be appropriate for some situations. Electromagnetic wave
propagation is modified by absorption and reflection due to buildings, objects, and persons.
Spacing according to the frequency of the transmitter m CISPR 11
Maximum
Transmitter Output
Power
W
From 150 kHz to 80
MHz
d = 1.2√P
From 80 MHz to 800
MHz
d = 1.2√P
From 800 MHz to 2.5
GHz
d = 2.3√P
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
