[Amps] Line Isolators for RF feedback

[Joe Isabella]

The one I use has ferrite beads stacked on top of each other (about 50 of the little buggers!!) on
about a 12 inch piece of teflon coax.  Since it isn't a torroid, it can't be saturated.  It's
supposed to handle 5kW, but I haven't quite hit it with that much power yet ( :-)  ).  It totally
fixed all my RF woes, and I had plenty!!

Joe,
N3JI

--- Alek Petkovic <vk6apk at eon.net.au> wrote:

> Ditto for me downunder.
> 
> The Radioworks line isolators do the trick nicely.
> 
> You can make your own as they are just coax wound around a ferrite rod. You 
> can also use the coil of coax like Rich suggests.
> 
> They all work well  but the RadioWorks product is very neat and convenient 
> to use. It is nicely encapsulated with the female connectors on each end. 
> Makes it real easy.
> 
> 73, Alek
> VK6APK
> 
> ps: Their wire antennas are well made and work quite ok as well.
> 
> At 12:19 PM 30/07/2004, Harold B. Mandel wrote:
> >Seconding the message below I add my personal endorsement
> >to Radio Works.com.
> >
> >When moving my shack from the 12 month "dxpedition" in
> >Secaucus, New Jersey to my home in Kentucky, a severe case
> >of RF feedback plagued the station when activating a linear
> >amplifier.
> >
> >Even though I was ready to plunk down cash for goodies, Jim, W4THU,
> >took time to speak with me at length, and suggested several tests
> >to further diagnose the culprit and refused to sell me anything until
> >reporting back to him.
> >
> >I found out about Radio Works when up in new Jersey, and purchased line
> >isolators to cure RF feedback going into the hotel telephone system.
> >
> >Score for Radio Works: AAAAA+
> >
> >Hal Mandel
> >KA1XO
> >On Tue, 27 Jul 2004 07:34:28 -0500 "Gene Bigham" <jbigham2 at kc.rr.com>
> >writes:
> > > I followed Radio Works recommendations for RF feedback problems.
> > > Their line isolators and grounding ideas worked to cure a bad case
> > > here.
> > > _______________________________________________
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> > > Amps at contesting.com
> > > http://lists.contesting.com/mailman/listinfo/amps
> > >
> > >
> >_______________________________________________
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> 
> http://www.qrz.com/vk6apk
> http://profiles.yahoo.com/vk6apk 
> 
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> 



		
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