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Acclarix AX4 Diagnostic Ultrasound System User Manual
Table 1 Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless communications
Test
Band
frequency
(MHz)
(MHz)
385
380-390
450
430-470
710
704-787
745
780
810
800-960
870
930
1720
1700-1990
1845
1970
2450
2400-2570
5240
5100-5800
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.
a)
a)
Service
TETRA 400
GMRS 460,
FRS 460
LTE Band 13,
17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GSM 1800;
CDMA 1900;
GSM 1900;
DECT; LTE
Band 1, 3, 4,
25; UMTS
Bluetooth,
WLAN, 802.11
b/g/n, RFID
2450, LTE
Band 7
WLAN 802.11
a/n
equipment
b)
Modulation
Maximum
power (W)
Pulse
b)
modulation
18 Hz
c)
FM
± 5 kHz
deviation
1 kHz sine
Pulse
b)
modulation
217 Hz
Pulse
b)
modulation
18 Hz
Pulse
b)
modulation
217 Hz
Pulse
b)
modulation
217 Hz
Pulse
b)
modulation
217 Hz
- 142 -
EMC Information
Distance
(m)
1.8
0.3
2
0.3
0,2
0.3
2
0.3
2
0.3
2
0.3
0.2
0.3
Immunit
y test
level
(V/m)
27
28
9
28
28
28
9
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