28
• Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environments listed below. The customer or the user
of the device should only be used in such environments:
Immunity test
Test
Frequency
(MHz)
Band a)
(MHz)
Service a)
Modulation b)
Modulation b) (W)
Distance (m)
IMMUNITY
TEST LEVEL
(V/m)
Radiated RF IEC
61000-4-3 (Test
specifications
for ENCLOSE
PORT
IMMUNITY to
RF wireless
communications
equipment)
Radiated RF IEC
61000-4-3
385
380-390
TETRA 400
Pulse
modulation b)
18 Hz
1.8
0.3
27
450
430-470
GMRS 460,
FRS 460
FM c) ±5 kHz
deviation
1 kHz sine
2
0.3
28
710
704-787
LTE Band
13, 17
Pulse
modulation b)
18 Hz
0.2
0.3
9
745
780
810
800-960
GSM
800/900;
TETRA 800;
iDECT; 820,
CDMA 850,
LTE B 5
Pulse
modulation b)
18 Hz
2
0.3
28
870
930
1720
1700-
1990
GSM 1800;
CDMA 1900;
GSM 1900;
DECT; LTE
Band 1, 3, 4,
25; UMTS
Pulse
modulation b)
217 Hz
2
0.3
28
1845
1970
2450
2400-
2570
Bluetooth
®
WLAN,
802.11
B/G/N, RFID
2450, LTE
Band 7
Pulse
modulation b)
21 Hz
2
0.3
28
5240
5100-
5800
WLAN
802.11a/n
Pulse
modulation b)
21 Hz
0.2
0.3
9
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:
E= 6
—
d
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.
