Electronics

-- · Guest

My wireless alarm system was "deaf" and "dead" during the use of an
FCC like authorized wireless radio "headphone", that simple...

Unfortunately this authority authorized and certified device
transmitted on the shared and not protected wireless alarm system
frequency (see previous post).
It muzzled any possible incoming signals from the sensors.

This problem is well known in telecommunication and is called Radio
Frequency Interference (RFI) but this wireless headphone story showed
me how SIMPLE it is to have the operations of an alarm system
jeopardized completely.
There are identifications codes present in the sensor transmissions
but during RFI the receiver output goes bingo and the ID's are
undecodable, useless.
The system does no longer detected FIRE and/or INTRUSION; the
receiver is "deaf" and on alarm giving DEAD.

This is applicable to OLD and NEW equipments, the receiver is unable
to refuse the RFI signals only and keep the sensor data, he jam
everything even the RFI detection and alarm giving.

Think it over before you keep or get a wireless alarm system.
I know, this problem happens only to others but you..

Paul

G. Morgan · Guest

Subject: Wireless Alarm System beheavior
Newsgroup: uk.tech.electronic-security
=> -- <..> <= wrote:

-- · Guest

"So called pro's" in that wireless alarm business and Radio Frequency
Interference (RFI) problem obviously don't possess the meager
intellectual capacity required to understand the simplistic concepts
of what I wrote, so please don't overestimate theyre talent to judge
others.
Look to theyre answers and discover theyre "subtle" reactions..

Paul

On Tue, 01 Mar 2005 01:48:07 -0600, G. Morgan
<alarmprosnail@snailgmail.com> wrote:

Frank Olson · Guest

"-- <..>" <pe.pe@swing_be> wrote in message
news:frp721tkvp9tqj8nntla9lcjcdndsdr76q@4ax.com...

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