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

[-pull@shoot]

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