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• Recommended separation distances between portable and mobile RF communication equipment and the device.
The device is intended for use in an electromagnetic environment where radiated RF disturbances are under control. User
can help prevent electromagnetic interference by keeping the device at a minimum distance from portable and mobile RF
communications equipment (transmitters). Below table details the maximum output power of transmitter:
Rated maximum output
power of transmitter
W
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
d = 1.2
80 MHz to 800 MHz
d = 1.2
800 MHz to 2.7 GHz
d = 2.3
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 metres (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.
• Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environments listed below, and should only be used in such environments:
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment – guidance
Conducted RF
IEC 61000-4-6
3 V rms
At 0.15–80 MHz
6 V rms
At ISM & Radio Amateur
Freq.
3 V rms
At 0.15–80 MHz
6 V rms
At ISM & Radio Amateur
Freq.
Portable and mobile RF communications equipment
should be used no closer to any part of the device,
including cables, than the recommended separation
distance calculated from the equation applicable to
the frequency of the transmitter.
Radiated RF
IEC 61000-4-3
(Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3)
10 V/m at 80–2700 MHz
AM Modulation and
9–28 V/m at 385–6000
MHz, Pulse Mode and other
Modulation. The system
shall be tested as specified
in IEC60601-1-2 Table 9
for proximity fields from RF
wireless communications
equipment using the test
methods specified in
IEC 61000-4-3
10 V/m at 80–2700 MHz
AM Modulation and
9–28 V/m at 385–6000
MHz, Pulse Mode and other
Modulation. The system
shall be tested as specified
in IEC60601-1-2 Table 9
for proximity fields from RF
wireless communications
equipment using the test
methods specified in
IEC 61000-4-3
Recommended separation distance
d = 1.2
d = 1.2
80 MHz to 800 MHz
d = 2.3
800 MHz to 2.7 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 metres (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey, a
should be less than the compliance level in each
frequency range.
b
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 device is used exceeds the applicable RF compliance level above, the device should
be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the device.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Summary of Contents for WGNBPA-230
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