mectron COMPACT PIEZO LED - Page 38

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COMPACT PIEZO LED
6.1.4 Specications 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
Freq.
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
Max
Power
(W)
Distance
(m)
Immunity
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 9745
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-2750
Bluetooth
WLAN
802.11b/g/n
RFID2450
LTEBand7
Pulse
modulation
b)
217Hz
2 0,3 28
5420
5100 - 5800
WLAN
802.11a/n
Pulse
modulation
b)
217Hz
0,2 0,3 95500
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.
 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.