Re: Extreme RF Noise source locating

[RTS <gafa@xxxxxxx>]

if its a high power source  you might try an old fashion  AM portable radio

Pick a blank spot on the dial and run the volume way up and walk around
the area..

If you get a buzzing noise  you may have found your source..

or

list the freg's of the effected receivers and see what their harmonics are

that would then give you an idea what might be causing the over lap..


*Rocky T. Squirrel, esq.

*

On 9/25/2018 3:52 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
>
>
>