Re: 8. NEWBEES, RF transmitters disturb Wireless Alarm Systems..

[-pull@shoot]

On Thu, 05 May 2005 23:18:38 +0200, -pull@shoot wrote:

>
>My wireless alarm system was:
>- "deaf", muzzled for sensor signal reception
>       and
>- "dead" on alarm giving
> when i used a simple local FCC approved and commercial available
>wireless headphone equipment, that simple ..
>
>Its well known by radio transmission specialists that problem, its
>called "Radio Frequency Interference" (RFI)
>- it can be present at any time or momentary as well in "old and new"
>  systems, its external to your equipment
>- its more present than normal in wireless alarm systems:
> - due to the configuration who impose low power transmitters (max.
>   10 mWatt) used in the sensors
> AND
> - the obliged use of shared frequencies who have disturbances and are
>   unprotected for RFI (see at FCC and/or other country authorities
>   or www.ero.dk for official info).
>
>My wireless headphone story showed me "how easy it is" to have the
>operation jeopardized completely and continuously during one year by
>an external transmitter operating on my wireless alarm frequency.
>
>This RFI problem is NOT REPORTED by any mean to the owner or central
>station..
> Realize what can happen before you detect it (if you can don't
>hesitate mention how) that your wireless alarm system is un-voluntary
>out of use due to for example a simple wireless transmitter in your
>own home, purchased by you and who had nothing in direct relation to
>your alarm system.
>
>I replaced my Wireless Alarm System with a wired one; the problem is
>solved for me, what about yours?
>
>Some "extra clever pro's" say that the FCC (++) will locate and find
>the disturbing signal.
>1. Just realize that the local range of the disturbing signal don't
>   allow to locate it at distance.
>2. That other legal users share the wireless alarm frequency
>   and that they have to find out the disturbing transmitter in
>   that bunch of others... Good luck FCC!
>
>Don't thrust wireless alarm systems, go wired!!!
>
>Paul