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RFI from neighbor's burglar alarm system

Discussion in 'Security Alarms' started by Jan, Jul 24, 2004.

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  1. Jan

    Jan Guest

    I think that I am receiving interference on my cordless phone and TV's
    (chirping) when ADT is testing my neighbor's system. I do not have a
    system in my house. This chirping only occurs at night (one or two
    chirps), and all other sources have been eliminated (smokies,
    microwave, etc.) I have some circumstantial evidence to substantiate
    my suspicions. Has anyone experienced anything like this?
     
  2. Paul

    Paul Guest

    I dont think ADT will be testing the system. They wouldnt have the ability
    The system will send a test which is ususally a phone call made by their
    alarm panel at a certain time of the night. Why would this interfere with
    your phone or TV Its just a phone call.

    Are you sure its not the local power company switching time clocks over or
    something similar.
     
  3. na

    na Guest

    probably not the neighbours alarm. most consumer electronics (phones,
    cordless phones, vcr's tv's, home stereo's can't supress noise very
    well (the internals are designed on the very minimal side to clean up
    things before they use the antenna, power, ac adapter power etc).

    that being said, try to get a 'RFI handbook on getting rid of RFI',
    your local or federal government might publish one for free, there is
    many good tips in it.

    enure your telephone line has no problem in your house & to the telco
    central office, check your tv antenna cables, if not RG-6 or better,
    change them. try ferrite cores on your speaker leads, on telephone
    line, on audio/video cables, on ac adapter wire.

    may be another cordless phone, or a cell phone. any new tower put up
    by your house recently? recent purchased item?

    hope this helps
     
  4. anomynous

    anomynous Guest

    I have a customer complain that the PIR is turning her tv off. Are you
    her?
     
  5. alarman

    alarman Guest

    anomynous wrote
    Fluorescent lights will do that sometimes.
    js
     
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