25
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
Frequency
Band
1
Service
1
Modulation
2
Maximum
Power
Distance
Immunity
Test
Level
MHz
MHz
W
Meters
(V/m)
385
380-390
TETRA 400
Pulse
modulation
2
18 Hz
1.8
0.3
27
450
430-470
GMRS 460,
FRS 460
FM
3
± 5 kHz
deviation 1
kHz sine
2
0.3
28
710
745
780
704-787
LTE Band
13, 17
Pulse
modulation
2
217 Hz
0.2
0.3
9
810
870
930
800-960
GSM 800/900,
TEETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse
modulation
2
217 Hz
2
0.3
28
1720
1845
1970
1700-
1900
GSM 1800;
CDMA 900;
GSM 1900;
DECT; LTE Band
1, 3, 4, 25;
UMTS
Pulse
modulation
2
217 Hz
2
0.3
28
2450
2400-
2750
WLAN, 802.11
b/g/n, RFID
2450, LTE
Band 7
Pulse
modulation
2
217 Hz
2
0.3
28
5240
5500
5785
5100
–
5800
WLAN
802.11a/n
Pulse
modulation²
217 Hz
0.2
0.3
9
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.
