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Re: [TowerTalk] Fw: Re: Inverter noise (was OT: Wind Turbines and Towers

To: "Towertalk" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Fw: Re: Inverter noise (was OT: Wind Turbines and Towers - Results)
From: Pete Smith <n4zr@contesting.com>
Date: Wed, 25 Mar 2009 13:38:29 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Can we move this to the RFI reflector?

73, Pete N4ZR

At 12:55 PM 3/25/2009, K3ND wrote:



> > I had the same noise issues on 80/160 with my under cabinet
> > halogen lights. I changed over to LED light bars and run
> > them from a 12V linear power supply. Noise is gone.
> >
> > http://www.superbrightleds.com/light_bars-rigid.html
> >
> > 73, Stew K3ND
> >
> >
> >
> >
> > --- On Wed, 3/25/09, Jim Brown
> > <jim@audiosystemsgroup.com> wrote:
> >
> > > From: Jim Brown <jim@audiosystemsgroup.com>
> > > Subject: Re: [TowerTalk] Inverter noise (was OT: Wind
> > Turbines and Towers - Results)
> > > To: "Tower Talk List"
> > <towertalk@contesting.com>
> > > Date: Wednesday, March 25, 2009, 11:49 AM
> > > On Wed, 25 Mar 2009 10:15:27 -0500, Jim Chaggaris
> > wrote:
> > >
> > > >Any thoughts on what is the best method to
> > eliminate
> > > the nasty 80/40M hash
> > > >generated from one set of 12V cabinet lights?
> > >
> > > Yes, it is awful, isn't it!  BTW -- they are NOT
> > > transformers, they are
> > > switching power supplies.
> > >
> > > >My wife makes it habit to turn them on whenever
> > I'm
> > > operating on 80M or
> > > >40M (coincidence?).
> > >
> > > Yes, my XYL turns on our noise generators to brush her
> > > teeth just about the
> > > time I'm chasing early morning DX on 160M. Even
> > though
> > > they're choked a
> > > bit, they still get into the EU/VK Beverage that runs
> > about
> > > 20 ft from
> > > them.
> > >
> > > Delta and Corcom both make small line filters that
> > should
> > > work quite well
> > > on the 120V side of these noise generators. Search
> > their
> > > catalogs for 1A or
> > > 3A units small enough to fit right next to that noise
> > > generator. Be sure to
> > > keep leads VERY short and bond the body of the filter
> > to
> > > the body of the
> > > noise generator. The Corcom 1VB1 is quite small, but
> > > provides good common
> > > mode filtering on the HF bands. Its differential
> > filtering
> > > is not
> > > specified.
> > >
> > > See http://audiosystemsgroup.com/PowerFilters.pdf
> > >
> > > 73,
> > >
> > > Jim Brown K9YC
> > >
> > >
> > > _______________________________________________
> > >
> > >
> > >
> > > _______________________________________________
> > > TowerTalk mailing list
> > > TowerTalk@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
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