Re: remote interference in a wireless security system

["Roland" <roland@xxxxxxxxxxxx>]

Your question might go beyond most wireless application questions and be one
more for an electrical engineer with RF experience.
Here is a site that describes their products relating to your question. Hope
this helps.
http://www.inovonics.com/whatToLookFor.php#question2

In many commercial environments, ambient RF signals or signals from other
wireless devices can interfere with a wireless security systems ability to
operate effectively. But since Inovonics Wireless products are based on
spread spectrum technology, reliability and range are maximized even in
"noisy" environments. Inovonics Wireless is the only wireless security
system based on proven Frequency Agile® 900 MHz technology. By sending
completely redundant signals on a multitude of channels across a 10 MHz
band, Inovonics Wireless products maximize reliability.
<simpleNhumble@xxxxxxxxx> wrote in message
news:1165936343.408520.86730@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Dear Roland and Frank,
>
> thanks for your valuable comments - for propriety sake i dont want to
> mention brand name on this forum - but your valuable point is taken.
>
> For my understanding could you throw some light on burst transmission
> devices and serial
> number based systems and how they deal with and report RF jam
>
> thanks
> SNH
>
>
> Roland Moore wrote:
>> I have only seen this on much old dip switch programmed units. Most
>> serial
>> number based systems today can deal with or report RF JAM.
>> <simpleNhumble@xxxxxxxxx> wrote in message
>> news:1165929419.290184.75650@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> > friends,
>> >
>> > we purchased a new DIY wireless home security system - and saw this
>> > scary problem.... please do tell me if this is there with other leading
>> > products too...
>> >
>> > once the remotes/key fobs are programeed... and the system is armed...
>> > if i take an another unprogrammed remote/key fob... and then keep it
>> > pressed continously... in effect jamming the signal frequency...the
>> > base station doesnt catch the radio signals emitted by the P I R and
>> > door s ens ors... in effect i can walk in to the system.. without
>> > getting an alarm...
>> >
>> > is this the problem with some type of manufacturers or happens with all
>> > products - for the products which handle this properly - how do they do
>> > it... which could be some place where i can get such products...
>> >
>> > thanks
>> > SNH
>> >
>