Invacare Etude Plus - Page 27

Electromagneticcompatibility(EMC)
TestFrequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
Maximum
power(W)
Distance(m)
Immunitytest
level(V/m)
1720
1845
1970
1700-1990
GSM1800;
CDMA1900;
GSM1900;
DECT;LTEBand
1,3,4,25;
UMTS
Pulse
modulation
b)
217Hz
20.328
24502400-2570
Bluetooth,
WLAN,802.11
b/g/n,RFID
2450,LTE
Band7
Pulse
modulation
b)
217Hz
20.328
5240
5500
5785
5100-5800
WLAN802.11
a/n
Pulse
modulation
b)
217Hz
0.20.39
Ifnecessarytoachievetheimmunitytestlevel,thedistancebetweenthetransmittingantennaandtheMedical
ElectricalEquipmentorSystemmaybereducedto1m.The1mtestdistanceispermittedbyIEC61000-4-3.
a)
Forsomeservices,onlytheuplinkfrequenciesareincluded.
b)
Thecarriershallbemodulatedusinga50%dutycyclesquarewavesignal.
c)
AsanalternativetoFMmodulation,50%pulsemodulationat18Hzmaybeusedbecausewhileitdoesnotrepresentactual
modulation,itwouldbeworstcase.
60128467-B
27