[RFI] RFI & Alarm Systems?
KD7JYK DM09
kd7jyk at earthlink.net
Mon Jul 30 22:49:31 PDT 2012
"What frequency(ies) are these wireless secirity systems operating in - 434,
390, 902, 2400 MHz? And how are the sensors powered, via coin cells?"
It really depends on the system. I have bits and pieces covering many
decades, frequencies from 20-30 KHz pulsed magnetic inductance to
microwaves, power supplies from coin cells to big lead acid batteries.
Check the FCC ID# online to get the operating frequency range:
http://transition.fcc.gov/oet/ea/fccid/
Kurt
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