EDAN iSe Series User Manual page 91

iSE Series Electrocardiograph User Manual EMC Information
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 FM modulation, 50% pulse modulation at 18 Hz may be used because
while it does not represent actual modulation, it would be worst case.
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