Acclarix AX4 Diagnostic Ultrasound System User Manual
EMC Information
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Table 1 Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless communications
equipment
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
Maximum
power (W)
Distance
(m)
Immunit
y test
level
(V/m)
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)
217 Hz
0,2
0.3
9
745
780
810
800-960
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 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)
217 Hz
2
0.3
28
5240
5100-5800
WLAN 802.11
a/n
Pulse
modulation
b)
217 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.
