Specifications Of The Tests For The Immunity Of The Accessible Parts Of The Casing To The Wireless Rf Communications Device - mectron compact piezo LED Use And Maintenance Manual

9.1.4 Specifications of the Tests for the Immunity of the Accessible
Parts of the Casing to the Wireless RF Communications Device
compact piezo LED is designed to operate in an electromagnetic environment in which radiated
RF disturbances are under control. The customer or the user of compact piezo LED can help
prevent electromagnetic interference by ensuring a minimum distance between the mobile and
portable RF (transmitters) communication devices and compact piezo LED, as recommended, in
relation to the maximum output power of radiocommunications equipment.
Test
Band
a)
Freq.
(MHz)
(MHz)
385 380 - 390
450 430 - 470
710
745 704 - 787
780
810
870
800 - 960
930
1720
1845
1700 - 1990
1970
2450 2400 - 2750
5420
5500 5100 - 5800
5785
a) For some services, only the uplink frequencies are
included.
b) the carrier shall be modulated using a 50 % duty cycle
square wave signal.
Service Modulation
a)
pulse
TETRA 400 modulation
18 Hz
FM
GMRS 460 ± 5 kHz
FRS 460 deviation
1 kHz sine
pulse
Lte Band 13,
modulation
17
217 Hz
GSM 800/900
TETRA 800 pulse
iDEN 820 modulation
CDMA 850 18 Hz
Lte Band 5
GSM 1800
CDMA 1900
GSM 1900 pulse
Dect modulation
Lte Band 1, 3, 217 Hz
4, 25
UmtS
Bluetooth
WLAN pulse
802.11 b/g/n modulation
RFID 2450 217 Hz
Lte Band 7
pulse
WLAN
modulation
802.11 a/n
217 Hz
TECHNICAL SPECIFICATIONS
Max
Distance
Power
b)
(W)
1,8
b)
c)
2
0,2
b)
2
b)
2
b)
2
b)
0,2
b)
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.
Immunity
test level
(m)
(V/m)
0,3 27
0,3 28
0,3 9
0,3 28
0,3 28
0,3 28
0,3 9
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