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Table 5
Guidance and manufacturer's declaration - electromagnetic immunity
The device is intended for use in the electromagnetic environment specified below. The customer or the
user of the device, should assure that it is used in such an environment.
Radiated RF
Test
IEC61000-4-3
Frequency
(Test
(MHz)
specifications
for
385
ENCLOSURE
PORT
IMMUNITY to
RF wireless
450
communica-
tions
710
equipment)
745
780
810
870
930
1720
1845
1970
2450
5240
5500
5785
NOTE 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.
The MANUFACTURER should consider reducing the minimum separation distance, based on RISK
MANAGEMENT, and using higher IMMUNITY TEST LEVELS that are appropriate for the reduced
minimum separation distance. Minimum separation distances for higher IMMUNITY TEST LEVELS shall be
calculated using the following equation:
Where P is the maximum power in W, d is the minimum separation distance in m, and E is the IMMUNITY
TEST LEVEL in V/m.
Band a)
Service a) Modulation b) Modulation b)
(MHz)
380-390
TETRA
Pulse
400
modulation b)
18Hz
GMRS 460，
FM c) ± 5kHz
FRS 460
deviation 1kHz
430-470
sine
704-787
LTE Band
Pulse
13,
modulation b)
17
217Hz
GSM
Pulse
800-960
800/900,
modulation b)
TETRA 800,
18Hz
iDEN 820,
CDMA 850,
LTE Band 5
GSM 1800;
Pulse
1700-
CDMA 1900;
modulation b)
1990
GSM 1900;
217Hz
DECT;
LTE Band 1,
3,
4,25; UMTS
Pulse
Bluetooth,
2400-
modulation b)
WLAN,
2570
217 Hz
802.11
b/g/n, RFID
2450, LTE
Band 7
5100-
WLAN
Pulse
5800
802.11
modulation b)
217 Hz
a/n
E =
Distance (m)
(W)
1.8
0.32
20
.3
0.20
.3
2
0.32
2
0.32
2
0.32
0.2
0.39
EN
IMMUNITY
TEST
LEVEL
(V/m)
7
28
9
8
8
8
33
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