[RFI] RFI & Alarm Systems?

[Tim Duffy K3LR]

Hi Jim:

Without pulling it apart - there is no way to identify the manufacture. ADT
has done a great job of keeping customers out of the inner workings.

73,
Tim K3LR

-----Original Message-----
From: rfi-bounces at contesting.com [mailto:rfi-bounces at contesting.com] On
Behalf Of Jim Brown
Sent: Sunday, July 29, 2012 10:55 PM
To: rfi at contesting.com
Subject: Re: [RFI] RFI & Alarm Systems?

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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