[RFI] RFI & Alarm Systems?

Jim Brown jim at audiosystemsgroup.com
Sun Jul 29 20:55:07 PDT 2012


On 7/29/2012 8:50 PM, Tim Duffy K3LR wrote:
> The ADT wireless alarm system I have used is totally RFI free.

Tim,

Can you identify by model number(s)?

I suspect that the fact that they're using wireless sensors is part of 
why it works.  I suspect most of the issues with other security systems 
is with horrific wired inputs to a central control unit (Pin One issues 
and non-existent bandwidth limiting), and their failure to tell their 
installers to use twisted pair.

73, Jim K9YC


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