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Guidance and Manufacturer's Declaration – Immunity
The AURA™ Intracranial Monitor System is intended for use in the electromagnetic
environment specified below. The customer or user of the AURA™ Intracranial Monitor
System should ensure that it is used in such an environment.
Test
Band
1
Frequency
MHz
MHz
385
380-390
450
430-470
710
704-787
745
780
810
800-960
870
930
1720
1700-
1845
1900
1970
2450
2400-
2750
5240
5100 –
5500
5800
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.
¹ For some services, only the uplink frequencies are included.
² The carrier shall be modulated using a 50 % duty cycle square wave signal.
³ 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.
Service
Modulation
1
TETRA 400
Pulse
modulation
18 Hz
GMRS 460,
FM
deviation 1
kHz sine
FRS 460
LTE Band
Pulse
13, 17
modulation
217 Hz
GSM 800/900,
Pulse
TEETRA 800,
modulation
iDEN 820,
217 Hz
CDMA 850,
LTE Band 5
GSM 1800;
Pulse
modulation
217 Hz
CDMA 900;
GSM 1900;
DECT; LTE Band
1, 3, 4, 25;
UMTS
WLAN, 802.11
Pulse
b/g/n, RFID
modulation
2450, LTE
217 Hz
Band 7
WLAN
Pulse
modulation²
217 Hz
802.11a/n
Maximum
2
Power
W
1.8
2
± 5 kHz
2
3
0.2
2
2
2
2
2
2
2
0.2
Distance
Immunity
Test
Level
Meters
(V/m)
0.3
27
0.3
28
0.3
9
0.3
28
0.3
28
0.3
28
0.3
9
25
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