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Re: Topband: 160 metre vertical with 'top loading'

To: topband@contesting.com
Subject: Re: Topband: 160 metre vertical with 'top loading'
From: shristov <shristov@ptt.rs>
Date: Mon, 25 Apr 2011 15:55:00 +0200
List-post: <topband@contesting.com">mailto:topband@contesting.com>
> W8JI is correct in that the current into a perfect inductor must equal the 
> current out of it.

Perfectly true.


> It's a piece of coiled wire so where else can the current go?

Wait a minute, a piece of coiled wire is not a perfect inductor!

It's a completely different beast:  the perfect inductor has zero length,
but a piece of coiled wire almost always has a substantial length
(the wire length, not the coil length), which causes all kinds of
transmission-line effects, including differing currents at coil ends.


> Tom's assumption here is a 'perfect' inductor with no distributed capacitance.

True, the 'perfect' inductor has no distributed capacitance, but, again,
perfect inductors are not what we have on our antennas.


73,

Sinisa  YT1NT, VE3EA
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