[TowerTalk] Trap Resonance

James McLaughlin dearborn9 at sbcglobal.net
Fri Nov 21 14:18:29 EST 2003


----- Original Message ----- 
From: "Ron Feutz" <feutz at wctc.net>
To: <towertalk at contesting.com>
Sent: Friday, November 21, 2003 12:52 PM
Subject: Re: [TowerTalk] Trap Resonance


> This oughta be fun to watch

Yes, semi annual three round non title event!

Jim
>
> At 10:11 AM 11/21/2003 -0500, K3BU at aol.com wrote:
> >In a message dated 11/21/03 8:03:12 AM Eastern Standard Time,
> >mchilkuri at kasnet.com writes:
> > >>I am now left wondering where exactly the trap should dip? Tom
suggests
> > that
> >it should NOT be brought to resonance on and around the desired operating
> >freq. So, where do I tune the trap? I could place it at 14.2 but 14.2
would
> >be my desired operating freq!<<
> >
> >
> >I would not rely on TOM, W8JI "wisdom," tune it to where it gives maximum
> >signal and the best performance. Tom is way off and wrong on the subject
of
> >current in loading coils on the antenna. He has extensive article on his
> >web site
> >that is completely wrong, there was quite a discussion on eHam.net and
> >rec.radio.amateur.antenna newsgroup on this subject and people that
> >measure things
> >concluded that the current is not equal at both ends of the loading coil,
> >while
> >he is still insisting that it is (based on wrong assumptions and
> >calculations).
> >Since the trap is acting as a loading coil, looks like you stumbled on
> >another proof that he is wrong and disseminating fallacy (not the first
> >time). The
> >final proof is in the signal strength and what you measure, not what
someone
> >"calculates."
> >Looks like this business of current distribution in the loading coils has
> >also significant impact on traps, which become loading coils at lower
> >bands and
> >knowing what is really happening will help to optimize them for better
> >efficiency. More info is on my web page
> >http://www.k3bu.us/loadingcoils.htm
> >
> >73 & GL
> >
> >Yuri, K3BU
> >_______________________________________________
> >
> >See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
> >Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with
> >any questions and ask for Sherman, W2FLA.
> >
> >_______________________________________________
> >TowerTalk mailing list
> >TowerTalk at contesting.com
> >http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk




More information about the TowerTalk mailing list