See:
http://www.electrical-online.com/understanding-doorbell-systems/
If it were my house, I'd lift the wire on the C connection on the bell
and see if that changed things...
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
For MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
For Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
For MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info
On Tue, 2016-01-19 at 09:42 -0500, Gary Smith wrote:
> David,
>
> Not on that circuit but there is a dimmer in the living room. I am
> going to need to check that out. I know dimmers are known to be a
> trouble source. I will put that on my list of things to check out.
>
> I'm going to replace the light socket and flip switches in the known
> bad circuit and be sure all the electric connections are good and
> spray deoxit on the connections before tightening.
>
> 73,
>
> Gary
> KA1J
>
>
> > Do you by chance have any lamp dimmers on that ckt? Dimable ceiling
> > lights for the kitchen maybe?
> > --
> > Thanks and 73's,
> > For equipment, and software setups and reviews see:
> > www.nk7z.net
> >
> > For MixW support see;
> > http://groups.yahoo.com/neo/groups/mixw/info
> > For Dopplergram information see:
> > http://groups.yahoo.com/neo/groups/dopplergram/info
> > For MM-SSTV see:
> > http://groups.yahoo.com/neo/groups/MM-SSTV/info
> >
> >
> > On Mon, 2016-01-18 at 16:52 -0500, Gary Smith wrote:
> > > Hi,
> > >
> > > I need some ideas on how to track down some noise sources inside the
> > > house. I thought it would be just switching off breakers and then
> > > unplugging the electronics on that circuit till I find the one that
> > > has failed and deal with that. No, there's more to it that I just
> > > discovered.
> > >
> > > For some time I have been having noise on my HI-Z Triangular. It is
> > > NW of the house. A salt marsh sans anything electric from the S to
> > > almost N to the West of me. The least noise was N, toward AMTRAK 100'
> > > away and when I would turn the aiming direction clockwise, I would
> > > get more RFI until the maximum between the south and the NW. Also, My
> > > be3am located at the center of the roof identified much the same. I
> > > quit using the beam because the noise was too much. For the most
> > > part, the noise seemed to come from the direction of neighbors who
> > > are only to the SE & S of me.
> > >
> > > I asked my YL to watch my monitor, connected to the P3, as I flipped
> > > off breakers. On the 2nd flip she said the noise was gone. The only
> > > outlets I could find at fault are the overhead light in the hallway
> > > and one bank of wall plugs in the kitchen. Nothing in the kitchen
> > > when unplugged stops the interference. Somehow, something unknown
> > > that is attached to the circuit is causing this problem and I have to
> > > track that down.
> > >
> > > The attic was filled with that paper mache kind of blown insulation
> > > and all of the wires are covered. That will make finding and tracking
> > > the wire to the overhead light difficult, I have no markers to where
> > > to safely step. I can do it bit by bit of course but I just can't
> > > look and follow the wires. In the basement, there is a false ceiling
> > > that holds the wires and some of them are in an area very difficult
> > > to access.
> > >
> > > But the problem remains that when that one circuit is eliminated,
> > > most if not all the noise goes away and I find nothing attached in
> > > line except that one overhead light and it was not on when we did the
> > > test.
> > >
> > > It was brought to my attention that a defective doorbell transformer
> > > can cause major issues but the doorbell is not on the same circuit
> > > and though I looked for that transformer, it's not in the closet or
> > > anywhere else I can find. The electrician was a gem. Still, I'd like
> > > to check it out, it's had power on it since 1969.
> > >
> > > So how might I best localize a source of internal house RFI when
> > > nothing is plugged in? Is there something like a stud finder that
> > > will allow me to follow the path of wiring behind walls?
> > >
> > > Thanks & 73,
> > >
> > > Gary
> > > KA1J
> > >
> > > _______________________________________________
> > > RFI mailing list
> > > RFI@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/rfi
> >
> > _______________________________________________
> > RFI mailing list
> > RFI@contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
> >
>
>
>
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|