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

[GALE STEWARD]

> 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 at audiosystemsgroup.com> wrote:
> 
> > From: Jim Brown <jim at audiosystemsgroup.com>
> > Subject: Re: [TowerTalk] Inverter noise (was OT: Wind
> Turbines and Towers - Results)
> > To: "Tower Talk List"
> <towertalk at 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
> > 
> > 
> > _______________________________________________
> > 
> > 
> > 
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