Good point, Rich!! I guess I should say "DUUHHH!!!".
I would imagine that the coax and/or PL-259 would be the weak link in this case
though, wouldn't
it?? Even say RG-400 or RG-303 would give up before they get saturated, right?
Just curious --
even if I ran my 3K-A at full bore, it wouldn't kill 'em (given that the dipole
is at it's
resonant point).
Joe
--- "R.Measures" <r@somis.org> wrote:
>
> On Jul 31, 2004, at 10:21 AM, Joe Isabella wrote:
>
> > 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.
>
> One wire through the center of a ferrite bead is a one-turn toroid.
> And yes, given enough current and freq., they can be saturated. The
> only coax choke device that can not be saturated has an air-core or
> powdered-iron core.
>
> > It'
> > 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@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@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.
> >>>> _______________________________________________
> >>>> Amps mailing list
> >>>> Amps@contesting.com
> >>>> http://lists.contesting.com/mailman/listinfo/amps
> >>>>
> >>>>
> >>> _______________________________________________
> >>> Amps mailing list
> >>> Amps@contesting.com
> >>> http://lists.contesting.com/mailman/listinfo/amps
> >>
> >> http://www.qrz.com/vk6apk
> >> http://profiles.yahoo.com/vk6apk
> >>
> >> _______________________________________________
> >> Amps mailing list
> >> Amps@contesting.com
> >> http://lists.contesting.com/mailman/listinfo/amps
> >>
> >
> >
> >
> >
> > __________________________________
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> >
> >
> Richard L. Measures, AG6K, 805.386.3734. www.somis.org
>
> _______________________________________________
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>
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