remote interference in a wireless security system

[[email protected]]

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

 

[Frank Olson]

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

I suppose it's possible to "jam" a frequency, but I doubt it would
affect a wireless system that uses burst transmission devices. Holding
the keyfob down on my ELK system doesn't result in a "jam". Who
manufactured your system and what's the model number?

 

[[email protected]]

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

 

[[email protected]]

Dear Roland,

thanks once again for your precious time... i got the burst
principle.... is there any other approach to this...other than burst
... the only other one i can think of is a base station which sends
alarm if the frequency channel is bocked continously for more than say
5 mins...

even rolling codes may not work... if the channel itself is blocked...
such that PIR radio signals donts reach the base station... what say
you?

bye
SNH

 

[Robert L Bass]

My bias is not to use any RF devices

in an alarm system when possible...

Same here but for different reasons. I don't like to make the system unnecessarily complex (more hardware means more stuff to
possibly fail). If it can be done by running a wire, that is almost always the better choice.

There are a few wireless "experts" (English translation: "people who don't know how to run wire") who claim that wireless is as good
as or better than hard wired, but they're just trying to justify their existence. :^)

When wireless is the only practical solution, by all means use it. Most modern supervised wireless systems can detect and respond
to signal jamming attempts.

--

Regards,
Robert L Bass

=============================>
Bass Home Electronics
941-866-1100
4883 Fallcrest Circle
Sarasota · Florida · 34233
http://www.bassburglaralarms.com
=============================>

 

[Mark Leuck]

Who made the system?

 

[Everywhere Man]

Paul Rampleburger

Who made the system?

 

[Mark Leuck]

Ya know someone had to say it

Pxxl Rampleburger

 

[Jim]

Paul Rampleburger

DAMN!

Ya beat me to it!

Oh well, back to vacationing.

Just in case ...... Merry Christmas.

 

[Everywhere Man]

DAMN!

Ya beat me to it!

Oh well, back to vacationing.

Just in case ...... Merry Christmas. <

Merry Christmas to you too, Jim.
Have a great vacation.

 

[Crash Gordon]

Paulie the Parrot
and his second cousin the paranoid NSA nutjob.


|
| | > Must be some joke I don't get. Can anyone explain?
|
| Unless you know about people who wear tin foil hats with old television
| rabbit ears, rely on old dial up radios for testing, have crazy caffeine
| habits and base the whole industry on a cheap old wireless system that God
| only knows what was done to it, you would have had to have been there.
| >
| > | > > Paul Rampleburger
| > >
| > > Mark Leuck wrote:
| > >> Who made the system?
|
|

 

[Bob Worthy]

Must be some joke I don't get. Can anyone explain?

Unless you know about people who wear tin foil hats with old television
rabbit ears, rely on old dial up radios for testing, have crazy caffeine
habits and base the whole industry on a cheap old wireless system that God
only knows what was done to it, you would have had to have been there.

 

[Everywhere Man]

Paul was a nut that trolled here for years raving about radio frequency
interference and how some wireless headphones caused his alarm system
to false.

 

[Robert L Bass]

Must be some joke I don't get. Can anyone explain?

Some nutcase who used to troll here (very successfully) going on about a fictitious wireless system.