[Amps] Hmmmm...Legal limit boiled the oil in the cantena

Fuqua, Bill L wlfuqu00 at uky.edu
Thu Apr 8 08:52:37 PDT 2010


  Standing waves are necessary on resonant antennas, such as half wave dipoles, quarter wave verticals, etc  , that is what makes them resonate and why they radiate well.  If they are made shorter we have to make them resonate either by adding loading coils or antenna tuner. The tuner and antenna become a resonate system.  There are non-resonate antennas that radiate well but they are larger, such as horn, rhombic, uhf helical and discone (a variant of the horn) antennas. Just as in musical instruments, some use sounding boards and horns to couple to the air other use high-q resonance to do so such as in pipe organs, flutes, Bells (really high q). 
73
Bill wa4lav

________________________________________
From: amps-bounces at contesting.com [amps-bounces at contesting.com] On Behalf Of Bill, W6WRT [dezrat1242 at yahoo.com]
Sent: Thursday, April 08, 2010 1:32 AM
To: amps at contesting.com
Subject: Re: [Amps] Hmmmm...Legal limit boiled the oil in the cantena

ORIGINAL MESSAGE:

On Wed, 7 Apr 2010 22:38:06 -0400, "Gary Schafer"
<garyschafer at comcast.net> wrote:

>
>Standing waves on the antenna are necessary for it to radiate.

<snip>
>
>I hope that Bill Orr book arrives soon.

REPLY:

Does it say that in the Bill Orr book? If so, I'm sending it back.

73, Bill W6WRT
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