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Re: [TowerTalk] G5RV vs 40M dipole

To: "john@kk9a.com" <john@kk9a.com>
Subject: Re: [TowerTalk] G5RV vs 40M dipole
From: Bry Carling <bcarling@cfl.rr.com>
Date: Mon, 27 Apr 2015 16:56:08 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Can you hear a difference of 1.2 dB on the other end? That's about one fifth of 
an S unit.

Best regards - Brian Carling
AF4K Crystals Co.
117 Sterling Pine St.
Sanford, FL 32773

Tel: +USA 321-262-5471




> On Apr 27, 2015, at 1:54 PM, "john@kk9a.com" <john@kk9a.com> wrote:
> 
> A 5:1 SWR on 10m fed with 100 feet of RG-213 will add an extra 1.2 dB of
> coax loss.
> 
> John KK9A
> 
> To:    Al Kozakiewicz <akozak@hourglass.com>
> Subject:    Re: [TowerTalk] G5RV vs 40M dipole
> From:    Bry Carling <bcarling@cfl.rr.com>
> Date:    Mon, 27 Apr 2015 12:50:33 -0400
> 
> 
> As he stated though, the loss is often minimal.
> 
> Best regards - Brian Carling
> AF4K Crystals Co.
> 117 Sterling Pine St.
> Sanford, FL 32773
> 
> Tel: +USA 321-262-5471
> 
> 
> 
> 
>> On Apr 27, 2015, at 12:42 PM, Al Kozakiewicz <akozak@hourglass.com> wrote:
>> 
>> SWR is determined by the feed point impedance of the antenna and the
>> characteristic impedance of the transmission line. The tuner can't do
>> anything about SWR on that line, only match (hopefully) the radio's nominal
>> 50 ohm impedance to whatever the conjugate impedance is at the radio end of
>> the transmission line.
>> 
>> Al
>> AB2ZY
> 
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