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Re: Extreme RF Noise source locating



On 9/25/2018 4:52 PM, ABLE1 wrote:
> Hey guys,
>
> Yesterday I was setting up some wireless window sensors and
> was having trouble after learning them in, could not get proper
> response unless I was very close to the receiver.  My thoughts
> were that I may have had a bad receiver, so I ordered another.
>
> Today I got a call from the customer asking if anything I did
> would have effected the garage door remotes.  He further explained
> that the remotes would only work when it was within 2 feet of the
> actual opener.  I said there is NO corelation but, just to be sure
> I had him power down the system by removing AC/DC so it was not powered.
>
> There was no change in the remotes to open the OH door from a distance.
> I suggested he relearn the remotes into the opener and or call
> the manufacture of the opener.  (Linear LD050)  He called back
> and said he was told by Mfg. that there was a large RF Noise
> source locally and he would need a Spectrum Analyzer to determine
> where it was located.
>
> Since then he has determined that a next door neighbor has the same
> problem with his remotes.  Also, another close neighbor had just left
> for two weeks to Europe yesterday.  And that another 3 houses away,
> the remotes worked just fine.
>
> Suspicion is that the vacationing neighbor turned on something upon
> leaving that is causing this RF Dead Zone.
>
> The reason I am posting here is to ask if anyone else has experienced
> this kind of issue??  And/or what household device could there be
> that would create this problem??
>
> Or does anyone have any hints how to find something that is putting
> out invisible STUFF??  It would be a lot easier if it would if it
> emitted a green ooze.
>
> Thanks for any input!!
>
> Les
>
>

Customer called this morning and said that his remotes now work ok.
Don't know and will never know what caused the problem for two days.

Life goes on..............................




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